[#149] selector: Add read timeout

If there are no objects for 10 second, then return nil.
It is required to prevent VU iteration hang if there
are no objects pushed to registry.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

.forgejo/workflows/dco.yml

@@ -0,0 +1,21 @@
+name: DCO action
+on: [pull_request]
+
+jobs:
+  dco:
+    name: DCO
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Setup Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.21'
+
+      - name: Run commit format checker
+        uses: https://git.frostfs.info/TrueCloudLab/dco-go@v2
+        with:
+          from: 'origin/${{ github.event.pull_request.base.ref }}'

.forgejo/workflows/tests.yml

@@ -0,0 +1,55 @@
+name: Tests and linters
+on: [pull_request]
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.22'
+          cache: true
+
+      - name: golangci-lint
+        uses: https://github.com/golangci/golangci-lint-action@v3
+        with:
+          version: latest
+
+  tests:
+    name: Tests
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go_versions: [ '1.21', '1.22' ]
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '${{ matrix.go_versions }}'
+          cache: true
+
+      - name: Run tests
+        run: make test
+
+  tests-race:
+    name: Tests with -race
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.21'
+          cache: true
+
+      - name: Run tests
+        run: go test ./... -count=1 -race
+

.github/workflows/dco.yml

@@ -1,21 +0,0 @@
-name: DCO check
-
-on:
-  pull_request:
-    branches:
-      - master
-
-jobs:
-  commits_check_job:
-    runs-on: ubuntu-latest
-    name: Commits Check
-    steps:
-      - name: Get PR Commits
-        id: 'get-pr-commits'
-        uses: tim-actions/get-pr-commits@master
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-      - name: DCO Check
-        uses: tim-actions/dco@master
-        with:
-          commits: ${{ steps.get-pr-commits.outputs.commits }}

.github/workflows/go.yml

@@ -1,34 +0,0 @@
-name: Tests
-
-on:
-  pull_request:
-    branches:
-      - master
-    types: [opened, synchronize]
-    paths-ignore:
-      - '**/*.md'
-  workflow_dispatch:
-
-jobs:
-  lint:
-    name: Lint
-    runs-on: ubuntu-20.04
-    steps:
-      - name: Check out code
-        uses: actions/checkout@v2
-
-      - name: golangci-lint
-        uses: golangci/golangci-lint-action@v2
-        with:
-          version: latest
-          args: --timeout=2m
-
-  tests:
-    name: Tests
-    runs-on: ubuntu-20.04
-    strategy:
-      matrix:
-        go_versions: [ '1.17', '1.18', '1.19' ]
-      fail-fast: false
-    steps:
-    - uses: actions/checkout@v3

.gitignore

@@ -1,3 +1,6 @@
 k6
 *.bolt
 presets
+bin
+# Preset script artifacts.
+__pycache__

Makefile

@@ -0,0 +1,94 @@
+#!/usr/bin/make -f
+
+# Common variables
+REPO ?= $(shell go list -m)
+VERSION ?= $(shell git describe --tags --dirty --match "v*" --always --abbrev=8 2>/dev/null || cat VERSION 2>/dev/null || echo "develop")
+GO_VERSION ?= 1.19
+LINT_VERSION ?= 1.49.0
+BINDIR = bin
+
+# Binaries to build
+CMDS = $(addprefix frostfs-, $(notdir $(wildcard cmd/*)))
+BINS = $(addprefix $(BINDIR)/, $(CMDS))
+
+.PHONY: all $(BINS) $(BINDIR) dep docker/ test cover format lint docker/lint pre-commit unpre-commit version clean
+
+# Make all binaries
+all: $(BINS)
+
+$(BINS): $(BINDIR) dep
+	@echo "⇒ Build $@"
+	CGO_ENABLED=0 \
+	go build -v -trimpath \
+	-ldflags "-X $(REPO)/internal/version.Version=$(VERSION)" \
+	-o $@ ./cmd/$(subst frostfs-,,$(notdir $@))
+
+$(BINDIR):
+	@echo "⇒ Ensure dir: $@"
+	@mkdir -p $@
+
+# Pull go dependencies
+dep:
+	@printf "⇒ Download requirements: "
+	@CGO_ENABLED=0 \
+	go mod download && echo OK
+	@printf "⇒ Tidy requirements: "
+	@CGO_ENABLED=0 \
+	go mod tidy -v && echo OK
+
+# Run `make %` in Golang container, for more information run `make help.docker/%`
+docker/%:
+	$(if $(filter $*,all $(BINS)), \
+		@echo "=> Running 'make $*' in clean Docker environment" && \
+		docker run --rm -t \
+		  -v `pwd`:/src \
+		  -w /src \
+		  -u `stat -c "%u:%g" .` \
+		  --env HOME=/src \
+		  golang:$(GO_VERSION) make $*,\
+	  	@echo "supported docker targets: all $(BINS) lint")
+
+# Run tests
+test:
+	@go test ./... -cover
+
+# Run tests with race detection and produce coverage output
+cover:
+	@go test -v -race ./... -coverprofile=coverage.txt -covermode=atomic
+	@go tool cover -html=coverage.txt -o coverage.html
+
+# Reformat code
+format:
+	@echo "⇒ Processing gofmt check"
+	@gofmt -s -w ./
+
+# Run linters
+lint:
+	@golangci-lint --timeout=5m run
+
+# Run linters in Docker
+docker/lint:
+	docker run --rm -it \
+	-v `pwd`:/src \
+	-u `stat -c "%u:%g" .` \
+	--env HOME=/src \
+	golangci/golangci-lint:v$(LINT_VERSION) bash -c 'cd /src/ && make lint'
+
+# Activate pre-commit hooks
+pre-commit:
+	pre-commit install -t pre-commit -t commit-msg
+
+# Deactivate pre-commit hooks
+unpre-commit:
+	pre-commit uninstall -t pre-commit -t commit-msg
+
+# Show current version
+version:
+	@echo $(VERSION)
+
+# Clean up files
+clean:
+	rm -rf .cache
+	rm -rf $(BINDIR)
+
+include help.mk

README.md

@@ -47,10 +47,12 @@ Create native client with `connect` method. Arguments:
 - hex encoded private key (empty value produces random key)
 - dial timeout in seconds (0 for the default value)
 - stream timeout in seconds (0 for the default value)
+- generate object header on the client side (for big object - split locally too)
+- max size for generated object header on the client side (for big object - the size that the object is splitted into)
 
 ```js
 import native from 'k6/x/frostfs/native';
-const frostfs_cli = native.connect("s01.frostfs.devenv:8080", "", 0, 0)
+const frostfs_cli = native.connect("s01.frostfs.devenv:8080", "", 0, 0, false, 0)
 ```
 
 ### Methods
@@ -73,12 +75,13 @@ const frostfs_cli = native.connect("s01.frostfs.devenv:8080", "", 0, 0)
 
 Create a local client with `connect` method. Arguments:
 - local path to frostfs storage node configuration file
+- local path to frostfs storage node configuration directory
 - hex encoded private key (empty value produces random key)
 - whether to use the debug logger (warning: very verbose)
 
 ```js
 import local from 'k6/x/frostfs/local';
-const local_client = local.connect("/path/to/config.yaml", "", false)
+const local_client = local.connect("/path/to/config.yaml", "/path/to/config/dir", "", false)
 ```
 
 ### Methods
@@ -98,13 +101,13 @@ Credentials are taken from default AWS configuration files and ENVs.
 
 ```js
 import s3 from 'k6/x/frostfs/s3';
-const s3_cli = s3.connect("http://s3.frostfs.devenv:8080")
+const s3_cli = s3.connect("https://s3.frostfs.devenv:8080")
 ```
 
 You can also provide additional options:
 ```js
 import s3 from 'k6/x/frostfs/s3';
-const s3_cli = s3.connect("http://s3.frostfs.devenv:8080", {'no_verify_ssl': 'true', 'timeout': '60s'})
+const s3_cli = s3.connect("https://s3.frostfs.devenv:8080", {'no_verify_ssl': 'true', 'timeout': '60s'})
 ```
 
 * `no_verify_ss` - Bool. If `true` - skip verifying the s3 certificate chain and host name (useful if s3 uses self-signed certificates)
@@ -122,6 +125,7 @@ const s3_cli = s3.connect("http://s3.frostfs.devenv:8080", {'no_verify_ssl': 'tr
 
 Create local s3 client with `connect` method. Arguments:
 - local path to frostfs storage node configuration file
+- local path to frostfs storage node configuration directory
 - parameter map with the following options:
   * `hex_key`: private key to use as a hexadecimal string. A random one is created if none is provided.
   * `node_position`: position of this node in the node array if loading multiple nodes independently (default: 0).
@@ -134,7 +138,7 @@ Create local s3 client with `connect` method. Arguments:
 import local from 'k6/x/frostfs/local';
 const params = {'node_position': 1, 'node_count': 3}
 const bucketMapping = {'mytestbucket': 'GBQDDUM1hdodXmiRHV57EUkFWJzuntsG8BG15wFSwam6'}
-const local_client = local.connect("/path/to/config.yaml", params, bucketMapping)
+const local_client = local.connect("/path/to/config.yaml", "/path/to/config/dir", params, bucketMapping)
 ```
 
 ### Methods
@@ -147,6 +151,41 @@ const local_client = local.connect("/path/to/config.yaml", params, bucketMapping
 
 See native protocol and s3 test suite examples in [examples](./examples) dir.
 
+# Command line utils
+
+To build all command line utils just run:
+
+```shell
+$ make
+```
+
+All binaries will be in `bin` directory.
+
+## Export registry db
+
+You can export registry bolt db to json file, that can be used as pregen for scenarios (see [docs](./scenarios/run_scenarios.md)).
+To do this use `frostfs-xk6-registry-exporter`, available flags can be seen in help:
+
+```shell
+$ ./bin/frostfs-xk6-registry-exporter -h
+Registry exporter for xk6
+
+Usage:
+registry-exporter [flags]
+
+Examples:
+registry-exporter registry.bolt
+registry-exporter --status created --out out.json registry.bolt
+
+Flags:
+--age int         Object age
+--format string   Output format (default "json")
+-h, --help            help for registry-exporter
+--out string      Path to output file (default "dumped-registry.json")
+--status string   Object status (default "created")
+-v, --version         version for registry-exporter
+```
+
 # License
 
 - [GNU General Public License v3.0](LICENSE)

cmd/xk6-registry-exporter/main.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+func main() {
+	ctx, _ := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP)
+
+	if cmd, err := rootCmd.ExecuteContextC(ctx); err != nil {
+		cmd.PrintErrln("Error:", err.Error())
+		cmd.PrintErrf("Run '%v --help' for usage.\n", cmd.CommandPath())
+		os.Exit(1)
+	}
+}

cmd/xk6-registry-exporter/root.go

@@ -0,0 +1,89 @@
+package main
+
+import (
+	"fmt"
+	"runtime"
+
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/registry"
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/version"
+	"github.com/spf13/cobra"
+)
+
+var rootCmd = &cobra.Command{
+	Use:     "registry-exporter",
+	Version: version.Version,
+	Short:   "Registry exporter",
+	Long:    "Registry exporter for xk6",
+	Example: `registry-exporter registry.bolt
+registry-exporter --status created --out out.json registry.bolt`,
+	SilenceErrors: true,
+	SilenceUsage:  true,
+	RunE:          rootCmdRun,
+}
+
+const (
+	outFlag    = "out"
+	formatFlag = "format"
+	statusFlag = "status"
+	ageFlag    = "age"
+)
+
+const (
+	defaultOutPath = "dumped-registry.json"
+
+	jsonFormat = "json"
+
+	createdStatus = "created"
+)
+
+func init() {
+	rootCmd.Flags().String(outFlag, defaultOutPath, "Path to output file")
+	rootCmd.Flags().String(formatFlag, jsonFormat, "Output format")
+	rootCmd.Flags().String(statusFlag, createdStatus, "Object status")
+	rootCmd.Flags().Int(ageFlag, 0, "Object age")
+
+	cobra.AddTemplateFunc("runtimeVersion", runtime.Version)
+	rootCmd.SetVersionTemplate(`FrostFS xk6 Registry Exporter
+{{printf "Version: %s" .Version }}
+GoVersion: {{ runtimeVersion }}
+`)
+}
+
+func rootCmdRun(cmd *cobra.Command, args []string) error {
+	if len(args) != 1 {
+		return fmt.Errorf("expected exacly one non-flag argumet: path to the registry, got: %s", args)
+	}
+
+	format, err := cmd.Flags().GetString(formatFlag)
+	if err != nil {
+		return fmt.Errorf("get '%s' flag: %w", formatFlag, err)
+	}
+	if format != jsonFormat {
+		return fmt.Errorf("unknown format '%s', only '%s' is supported", format, jsonFormat)
+	}
+
+	out, err := cmd.Flags().GetString(outFlag)
+	if err != nil {
+		return fmt.Errorf("get '%s' flag: %w", outFlag, err)
+	}
+
+	status, err := cmd.Flags().GetString(statusFlag)
+	if err != nil {
+		return fmt.Errorf("get '%s' flag: %w", statusFlag, err)
+	}
+
+	age, err := cmd.Flags().GetInt(ageFlag)
+	if err != nil {
+		return fmt.Errorf("get '%s' flag: %w", ageFlag, err)
+	}
+
+	objRegistry := registry.NewObjRegistry(cmd.Context(), args[0])
+	objSelector := registry.NewObjSelector(objRegistry, 0, registry.SelectorAwaiting, &registry.ObjFilter{
+		Status: status,
+		Age:    age,
+	})
+	objExporter := registry.NewObjExporter(objSelector)
+
+	cmd.Println("Writing result file:", out)
+	return objExporter.ExportJSONPreGen(out)
+}

examples/local.js

@@ -2,7 +2,7 @@ import local from 'k6/x/frostfs/local';
 import { uuidv4 } from '../scenarios/libs/k6-utils-1.4.0.js';
 
 const payload = open('../go.sum', 'b');
-const local_cli = local.connect("/path/to/config.yaml", "", false)
+const local_cli = local.connect("/path/to/config.yaml", "/path/to/config/dir", "", false)
 
 export const options = {
     stages: [

examples/native.js

@@ -3,11 +3,11 @@ import { fail } from "k6";
 import { uuidv4 } from '../scenarios/libs/k6-utils-1.4.0.js';
 
 const payload = open('../go.sum', 'b');
-const frostfs_cli = native.connect("s01.frostfs.devenv:8080", "1dd37fba80fec4e6a6f13fd708d8dcb3b29def768017052f6c930fa1c5d90bbb", 0, 0)
+const frostfs_cli = native.connect("s01.frostfs.devenv:8080", "1dd37fba80fec4e6a6f13fd708d8dcb3b29def768017052f6c930fa1c5d90bbb", 0, 0, false, 0)
 
 export const options = {
     stages: [
-        {duration: '30s', target: 10},
+        { duration: '30s', target: 10 },
     ],
 };
 
@@ -24,7 +24,7 @@ export function setup() {
         fail(res.error)
     }
     console.info("created container", res.container_id)
-    return {container_id: res.container_id}
+    return { container_id: res.container_id }
 }
 
 export default function (data) {

examples/native_onsite.js

@@ -3,7 +3,7 @@ import { uuidv4 } from '../scenarios/libs/k6-utils-1.4.0.js';
 
 const payload = open('../go.sum', 'b');
 const container = "AjSxSNNXbJUDPqqKYm1VbFVDGCakbpUNH8aGjPmGAH3B"
-const frostfs_cli = native.connect("s01.frostfs.devenv:8080", "", 0, 0)
+const frostfs_cli = native.connect("s01.frostfs.devenv:8080", "", 0, 0, false, 0)
 const frostfs_obj = frostfs_cli.onsite(container, payload)
 
 export const options = {
@@ -14,11 +14,11 @@ export const options = {
 
 export default function () {
     let headers = {
-       'unique_header': uuidv4()
+        'unique_header': uuidv4()
     }
     let resp = frostfs_obj.put(headers)
     if (resp.success) {
-       frostfs_cli.get(container, resp.object_id)
+        frostfs_cli.get(container, resp.object_id)
     } else {
         console.log(resp.error)
     }

examples/s3local.js

@@ -3,7 +3,7 @@ import { uuidv4 } from '../scenarios/libs/k6-utils-1.4.0.js';
 
 const bucket = "testbucket"
 const payload = open('../go.sum', 'b');
-const s3local_cli = s3local.connect("path/to/storage/config.yml", {}, {
+const s3local_cli = s3local.connect("path/to/storage/config.yml", "path/to/storage/config/dir", {}, {
     'testbucket': 'GBQDDUM1hdodXmiRHV57EUkFWJzuntsG8BG15wFSwam6',
 });
 

go.mod

@@ -1,122 +1,132 @@
 module git.frostfs.info/TrueCloudLab/xk6-frostfs
 
-go 1.19
+go 1.21
 
 require (
-	git.frostfs.info/TrueCloudLab/frostfs-node v0.22.2-0.20230522084814-731bf5d0ee66
-	git.frostfs.info/TrueCloudLab/frostfs-s3-gw v0.24.1-0.20230403110435-01afa1cae425
-	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20230519144724-f5b23eb22569
+	git.frostfs.info/TrueCloudLab/frostfs-node v0.38.3-0.20240502170333-ec2873caa7c6
+	git.frostfs.info/TrueCloudLab/frostfs-s3-gw v0.29.0-rc.1.0.20240422122918-034396d554ec
+	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240502080121-12ddefe07877
 	git.frostfs.info/TrueCloudLab/tzhash v1.8.0
-	github.com/aws/aws-sdk-go-v2 v1.16.3
-	github.com/aws/aws-sdk-go-v2/config v1.15.5
-	github.com/aws/aws-sdk-go-v2/service/s3 v1.26.9
-	github.com/dop251/goja v0.0.0-20230427124612-428fc442ff5f
+	github.com/aws/aws-sdk-go-v2 v1.19.0
+	github.com/aws/aws-sdk-go-v2/config v1.18.28
+	github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.11.72
+	github.com/aws/aws-sdk-go-v2/service/s3 v1.37.0
+	github.com/dop251/goja v0.0.0-20230626124041-ba8a63e79201
 	github.com/go-loremipsum/loremipsum v1.1.3
-	github.com/google/uuid v1.3.0
+	github.com/google/uuid v1.6.0
 	github.com/joho/godotenv v1.5.1
-	github.com/nspcc-dev/neo-go v0.101.1
-	github.com/panjf2000/ants/v2 v2.5.0
-	github.com/sirupsen/logrus v1.9.2
-	github.com/stretchr/testify v1.8.3
-	go.etcd.io/bbolt v1.3.6
-	go.k6.io/k6 v0.44.2-0.20230524054758-add1a5fe5019
-	go.uber.org/zap v1.24.0
-	golang.org/x/sys v0.8.0
+	github.com/nspcc-dev/neo-go v0.105.1
+	github.com/panjf2000/ants/v2 v2.9.0
+	github.com/sirupsen/logrus v1.9.3
+	github.com/spf13/cobra v1.8.0
+	github.com/stretchr/testify v1.8.4
+	go.etcd.io/bbolt v1.3.8
+	go.k6.io/k6 v0.45.1
+	go.uber.org/zap v1.26.0
+	golang.org/x/sys v0.18.0
 )
 
 require (
-	git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.15.1-0.20230519114017-0c67b8fefa41 // indirect
+	git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240427200446-67c6f305b21f // indirect
+	git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240409115729-6eb492025bdd // indirect
 	git.frostfs.info/TrueCloudLab/frostfs-crypto v0.6.0 // indirect
-	git.frostfs.info/TrueCloudLab/hrw v1.2.0 // indirect
+	git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20231101111734-b3ad3335ff65 // indirect
+	git.frostfs.info/TrueCloudLab/hrw v1.2.1 // indirect
+	git.frostfs.info/TrueCloudLab/policy-engine v0.0.0-20240416071728-04a79f57ef1f // indirect
 	git.frostfs.info/TrueCloudLab/rfc6979 v0.4.0 // indirect
-	github.com/antlr/antlr4/runtime/Go/antlr/v4 v4.0.0-20230512164433-5d1fd1a340c9 // indirect
-	github.com/aws/aws-sdk-go v1.44.6 // indirect
-	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.4.1 // indirect
-	github.com/aws/aws-sdk-go-v2/credentials v1.12.0 // indirect
-	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.12.4 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.10 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.4 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/ini v1.3.11 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/v4a v1.0.1 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.9.1 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.1.5 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.9.4 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.13.4 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sso v1.11.4 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sts v1.16.4 // indirect
-	github.com/aws/smithy-go v1.11.2 // indirect
+	git.frostfs.info/TrueCloudLab/zapjournald v0.0.0-20240124114243-cb2e66427d02 // indirect
+	github.com/antlr4-go/antlr/v4 v4.13.0 // indirect
+	github.com/aws/aws-sdk-go v1.44.296 // indirect
+	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.4.10 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.13.27 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.13.5 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.35 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.29 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.3.36 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/v4a v1.0.27 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.9.11 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.1.30 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.9.29 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.14.4 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.12.13 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.14.13 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.19.3 // indirect
+	github.com/aws/smithy-go v1.13.5 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bluele/gcache v0.0.2 // indirect
 	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
 	github.com/dlclark/regexp2 v1.10.0 // indirect
 	github.com/fatih/color v1.15.0 // indirect
-	github.com/fsnotify/fsnotify v1.6.0 // indirect
-	github.com/go-logr/logr v1.2.4 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/go-chi/chi/v5 v5.0.8 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-pkgz/expirable-cache/v3 v3.0.0 // indirect
 	github.com/go-sourcemap/sourcemap v2.1.4-0.20211119122758-180fcef48034+incompatible // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/google/pprof v0.0.0-20230510103437-eeec1cb781c3 // indirect
-	github.com/gorilla/mux v1.8.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.15.2 // indirect
-	github.com/hashicorp/golang-lru v0.6.0 // indirect
-	github.com/hashicorp/golang-lru/v2 v2.0.2 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/pprof v0.0.0-20230817174616-7a8ec2ada47b // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0 // indirect
+	github.com/hashicorp/golang-lru v1.0.2 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
-	github.com/klauspost/compress v1.16.5 // indirect
+	github.com/klauspost/compress v1.17.4 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.19 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
-	github.com/minio/highwayhash v1.0.2 // indirect
-	github.com/minio/sio v0.3.0 // indirect
+	github.com/minio/sio v0.3.1 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/mr-tron/base58 v1.2.0 // indirect
 	github.com/mstoykov/atlas v0.0.0-20220811071828-388f114305dd // indirect
-	github.com/nats-io/jwt/v2 v2.4.1 // indirect
-	github.com/nats-io/nats.go v1.25.0 // indirect
-	github.com/nats-io/nkeys v0.4.4 // indirect
+	github.com/nats-io/nats.go v1.32.0 // indirect
+	github.com/nats-io/nkeys v0.4.7 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
+	github.com/nspcc-dev/go-ordered-json v0.0.0-20240112074137-296698a162ae // indirect
 	github.com/nspcc-dev/rfc6979 v0.2.0 // indirect
-	github.com/onsi/ginkgo v1.16.5 // indirect
 	github.com/onsi/gomega v1.20.2 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.7 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/prometheus/client_golang v1.15.1 // indirect
-	github.com/prometheus/client_model v0.4.0 // indirect
-	github.com/prometheus/common v0.44.0 // indirect
-	github.com/prometheus/procfs v0.10.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/prometheus/client_golang v1.18.0 // indirect
+	github.com/prometheus/client_model v0.5.0 // indirect
+	github.com/prometheus/common v0.46.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/sagikazarmark/locafero v0.4.0 // indirect
+	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
 	github.com/serenize/snaker v0.0.0-20201027110005-a7ad2135616e // indirect
-	github.com/spaolacci/murmur3 v1.1.0 // indirect
-	github.com/spf13/afero v1.9.5 // indirect
-	github.com/spf13/cast v1.5.0 // indirect
-	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.11.0 // indirect
+	github.com/spf13/cast v1.6.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/spf13/viper v1.15.0 // indirect
-	github.com/subosito/gotenv v1.4.2 // indirect
-	go.opentelemetry.io/otel v1.15.1 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.15.1 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.15.1 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.15.1 // indirect
-	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.15.1 // indirect
-	go.opentelemetry.io/otel/sdk v1.15.1 // indirect
-	go.opentelemetry.io/otel/trace v1.15.1 // indirect
-	go.opentelemetry.io/proto/otlp v0.19.0 // indirect
-	go.uber.org/atomic v1.11.0 // indirect
+	github.com/spf13/viper v1.18.2 // indirect
+	github.com/ssgreg/journald v1.0.0 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d // indirect
+	github.com/twmb/murmur3 v1.1.8 // indirect
+	go.opentelemetry.io/otel v1.22.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.22.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.22.0 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.22.0 // indirect
+	go.opentelemetry.io/otel/metric v1.22.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.22.0 // indirect
+	go.opentelemetry.io/otel/trace v1.22.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.1.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/crypto v0.9.0 // indirect
-	golang.org/x/exp v0.0.0-20230515195305-f3d0a9c9a5cc // indirect
-	golang.org/x/net v0.10.0 // indirect
-	golang.org/x/sync v0.2.0 // indirect
-	golang.org/x/text v0.9.0 // indirect
-	golang.org/x/time v0.3.0 // indirect
-	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
-	google.golang.org/grpc v1.55.0 // indirect
-	google.golang.org/protobuf v1.30.0 // indirect
+	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/exp v0.0.0-20240119083558-1b970713d09a // indirect
+	golang.org/x/net v0.23.0 // indirect
+	golang.org/x/sync v0.6.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240227224415-6ceb2ff114de // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240227224415-6ceb2ff114de // indirect
+	google.golang.org/grpc v1.63.2 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
 	gopkg.in/guregu/null.v3 v3.5.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

help.mk

@@ -0,0 +1,22 @@
+.PHONY: help
+
+# Show this help prompt
+help:
+	@echo '  Usage:'
+	@echo ''
+	@echo '    make <target>'
+	@echo ''
+	@echo '  Targets:'
+	@echo ''
+	@awk '/^#/{ comment = substr($$0,3) } comment && /^[a-zA-Z][a-zA-Z0-9.%_/-]+ ?:/{ print "   ", $$1, comment }' $(MAKEFILE_LIST) | column -t -s ':' | grep -v 'IGNORE' | sort | uniq
+
+# Show help for docker/% IGNORE
+help.docker/%:
+	$(eval TARGETS:=$(notdir all lint) ${BINS})
+	@echo '  Usage:'
+	@echo ''
+	@echo '    make docker/% -- Run `make %` in Golang container'
+	@echo ''
+	@echo '  Supported docker targets:'
+	@echo ''
+	@$(foreach bin, $(TARGETS), echo '   ' $(bin);)

internal/datagen/datagen.go

@@ -38,7 +38,7 @@ func (d *Datagen) Exports() modules.Exports {
 	return modules.Exports{Default: d}
 }
 
-func (d *Datagen) Generator(size int, typ string) *Generator {
-	g := NewGenerator(d.vu, size, strings.ToLower(typ))
+func (d *Datagen) Generator(size int, typ string, streaming bool) *Generator {
+	g := NewGenerator(d.vu, size, strings.ToLower(typ), streaming)
 	return &g
 }

internal/datagen/generator.go

@@ -2,11 +2,10 @@ package datagen
 
 import (
 	"bytes"
-	"crypto/sha256"
-	"encoding/hex"
 	"math/rand"
+	"sync/atomic"
+	"time"
 
-	"github.com/dop251/goja"
 	"github.com/go-loremipsum/loremipsum"
 	"go.k6.io/k6/js/modules"
 )
@@ -27,11 +26,9 @@ type (
 		buf    []byte
 		typ    string
 		offset int
-	}
 
-	GenPayloadResponse struct {
-		Payload goja.ArrayBuffer
-		Hash    string
+		streaming bool
+		seed      *atomic.Int64
 	}
 )
 
@@ -44,7 +41,7 @@ var payloadTypes = []string{
 	"",
 }
 
-func NewGenerator(vu modules.VU, size int, typ string) Generator {
+func NewGenerator(vu modules.VU, size int, typ string, streaming bool) Generator {
 	if size <= 0 {
 		panic("size should be positive")
 	}
@@ -53,46 +50,57 @@ func NewGenerator(vu modules.VU, size int, typ string) Generator {
 	for i := range payloadTypes {
 		if payloadTypes[i] == typ {
 			found = true
+			break
 		}
 	}
 	if !found {
 		vu.InitEnv().Logger.Info("Unknown payload type '%s', random will be used.", typ)
 	}
-	return Generator{vu: vu, size: size, buf: nil, typ: typ, offset: 0}
-}
-
-func (g *Generator) GenPayload(calcHash bool) GenPayloadResponse {
-	data := g.nextSlice()
-
-	dataHash := ""
-	if calcHash {
-		hashBytes := sha256.Sum256(data)
-		dataHash = hex.EncodeToString(hashBytes[:])
+	g := Generator{
+		vu:   vu,
+		size: size,
+		typ:  typ,
 	}
 
-	payload := g.vu.Runtime().NewArrayBuffer(data)
-	return GenPayloadResponse{Payload: payload, Hash: dataHash}
+	if streaming {
+		g.streaming = true
+		g.seed = new(atomic.Int64)
+	} else {
+		g.rand = rand.New(rand.NewSource(time.Now().UnixNano()))
+		g.buf = make([]byte, size+TailSize)
+		g.fillBuffer()
+	}
+	return g
+}
+
+func (g *Generator) fillBuffer() {
+	switch g.typ {
+	case "text":
+		li := loremipsum.New()
+		b := bytes.NewBuffer(g.buf[:0])
+		for b.Len() < g.size+TailSize {
+			b.WriteString(li.Paragraph())
+			b.WriteRune('\n')
+		}
+		g.buf = b.Bytes()
+	default:
+		g.rand.Read(g.buf) // Per docs, err is always nil here
+	}
+}
+
+func (g *Generator) GenPayload() Payload {
+	if g.streaming {
+		return NewStreamPayload(g.size, g.seed.Add(1), g.typ)
+	}
+
+	data := g.nextSlice()
+	return NewFixedPayload(data)
 }
 
 func (g *Generator) nextSlice() []byte {
-	if g.buf == nil {
-		// Allocate buffer with extra tail for sliding and populate it with random bytes
-		g.buf = make([]byte, g.size+TailSize)
-		rand.Read(g.buf) // Per docs, err is always nil here
-		switch g.typ {
-		case "text":
-			li := loremipsum.New()
-			b := bytes.NewBuffer(nil)
-			for b.Len() < g.size+TailSize {
-				b.WriteString(li.Paragraph())
-				b.WriteRune('\n')
-			}
-			g.buf = b.Bytes()
-		default:
-			// Allocate buffer with extra tail for sliding and populate it with random bytes
-			g.buf = make([]byte, g.size+TailSize)
-			rand.Read(g.buf) // Per docs, err is always nil here
-		}
+	if g.offset+g.size >= len(g.buf) {
+		g.offset = 0
+		g.fillBuffer()
 	}
 
 	result := g.buf[g.offset : g.offset+g.size]
@@ -100,10 +108,5 @@ func (g *Generator) nextSlice() []byte {
 	// Shift the offset for the next call. If we've used our entire tail, then erase
 	// the buffer so that on the next call it is regenerated anew
 	g.offset += 1
-	if g.offset+g.size >= len(g.buf) {
-		g.buf = nil
-		g.offset = 0
-	}
-
 	return result
 }

internal/datagen/generator_test.go

@@ -16,25 +16,25 @@ func TestGenerator(t *testing.T) {
 
 	t.Run("fails on negative size", func(t *testing.T) {
 		require.Panics(t, func() {
-			_ = NewGenerator(vu, -1, "")
+			_ = NewGenerator(vu, -1, "", false)
 		})
 	})
 
 	t.Run("fails on zero size", func(t *testing.T) {
 		require.Panics(t, func() {
-			_ = NewGenerator(vu, 0, "")
+			_ = NewGenerator(vu, 0, "", false)
 		})
 	})
 
 	t.Run("creates slice of specified size", func(t *testing.T) {
 		size := 10
-		g := NewGenerator(vu, size, "")
+		g := NewGenerator(vu, size, "", false)
 		slice := g.nextSlice()
 		require.Len(t, slice, size)
 	})
 
 	t.Run("creates a different slice on each call", func(t *testing.T) {
-		g := NewGenerator(vu, 1000, "")
+		g := NewGenerator(vu, 1000, "", false)
 		slice1 := g.nextSlice()
 		slice2 := g.nextSlice()
 		// Each slice should be unique (assuming that 1000 random bytes will never coincide
@@ -43,7 +43,7 @@ func TestGenerator(t *testing.T) {
 	})
 
 	t.Run("keeps generating slices after consuming entire tail", func(t *testing.T) {
-		g := NewGenerator(vu, 1000, "")
+		g := NewGenerator(vu, 1000, "", false)
 		initialSlice := g.nextSlice()
 		for i := 0; i < TailSize; i++ {
 			g.nextSlice()

internal/datagen/payload.go

@@ -0,0 +1,121 @@
+package datagen
+
+import (
+	"bufio"
+	"bytes"
+	"crypto/sha256"
+	"encoding/hex"
+	"hash"
+	"io"
+	"math/rand"
+
+	"github.com/go-loremipsum/loremipsum"
+)
+
+// Payload represents arbitrary data to be packed into S3 or native object.
+// Implementations could be thread-unsafe.
+type Payload interface {
+	// Reader returns io.Reader instance to read the payload.
+	// Must not be called twice.
+	Reader() io.Reader
+	// Bytes is a helper which reads all data from Reader() into slice.
+	// The sole purpose of this method is to simplify HTTP scenario,
+	// where all payload needs to be read and wrapped.
+	Bytes() []byte
+	// Size returns payload size, which is equal to the total amount of data
+	// that could be read from the Reader().
+	Size() int
+	// Hash returns payload sha256 hash. Must be called after all data is read from the reader.
+	Hash() string
+}
+
+type bytesPayload struct {
+	data []byte
+}
+
+func (p *bytesPayload) Reader() io.Reader {
+	return bytes.NewReader(p.data)
+}
+
+func (p *bytesPayload) Size() int {
+	return len(p.data)
+}
+
+func (p *bytesPayload) Hash() string {
+	h := sha256.Sum256(p.data[:])
+	return hex.EncodeToString(h[:])
+}
+
+func (p *bytesPayload) Bytes() []byte {
+	return p.data
+}
+
+func NewFixedPayload(data []byte) Payload {
+	return &bytesPayload{data: data}
+}
+
+type randomPayload struct {
+	r    io.Reader
+	s    hash.Hash
+	h    string
+	size int
+}
+
+func NewStreamPayload(size int, seed int64, typ string) Payload {
+	var rr io.Reader
+	switch typ {
+	case "text":
+		rr = &textReader{li: loremipsum.NewWithSeed(seed)}
+	default:
+		rr = rand.New(rand.NewSource(seed))
+	}
+
+	lr := io.LimitReader(rr, int64(size))
+	// We need some buffering to write complete blocks in the TeeReader.
+	// Streaming payload read is expected to be used for big objects, thus 4k seems like a good choice.
+	br := bufio.NewReaderSize(lr, 4096)
+	s := sha256.New()
+	tr := io.TeeReader(br, s)
+	return &randomPayload{
+		r:    tr,
+		s:    s,
+		size: size,
+	}
+}
+
+func (p *randomPayload) Reader() io.Reader {
+	return p.r
+}
+
+func (p *randomPayload) Size() int {
+	return p.size
+}
+
+func (p *randomPayload) Hash() string {
+	if p.h == "" {
+		p.h = hex.EncodeToString(p.s.Sum(nil))
+		// Prevent possible misuse.
+		p.r = nil
+		p.s = nil
+	}
+	return p.h
+}
+
+func (p *randomPayload) Bytes() []byte {
+	data, err := io.ReadAll(p.r)
+	if err != nil {
+		// We use only 2 readers, either `bytes.Reader` or `rand.Reader`.
+		// None of them returns errors, thus encountering an error is a fatal error.
+		panic(err)
+	}
+	return data
+}
+
+type textReader struct {
+	li *loremipsum.LoremIpsum
+}
+
+func (r *textReader) Read(p []byte) (n int, err error) {
+	paragraph := r.li.Paragraph()
+	return copy(p, paragraph), nil
+}

internal/datagen/payload_test.go

@@ -0,0 +1,40 @@
+package datagen
+
+import (
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/hex"
+	"io"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestFixedPayload(t *testing.T) {
+	const size = 123
+	data := make([]byte, size)
+	_, err := rand.Read(data)
+	require.NoError(t, err)
+
+	p := NewFixedPayload(data)
+	require.Equal(t, size, p.Size())
+
+	actual, err := io.ReadAll(p.Reader())
+	require.NoError(t, err)
+	require.Equal(t, data, actual)
+
+	h := sha256.Sum256(data)
+	require.Equal(t, hex.EncodeToString(h[:]), p.Hash())
+}
+
+func TestStreamingPayload(t *testing.T) {
+	const size = 123
+
+	p := NewStreamPayload(size, 0, "")
+	require.Equal(t, size, p.Size())
+
+	actual, err := io.ReadAll(p.Reader())
+	require.NoError(t, err)
+	require.Equal(t, size, len(actual))
+	require.Equal(t, sha256.Size*2, len(p.Hash()))
+}

internal/local/client.go

@@ -5,14 +5,15 @@ import (
 
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/datagen"
 	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/local/rawclient"
-	"github.com/dop251/goja"
 	"go.k6.io/k6/js/modules"
 )
 
 type Client struct {
 	vu modules.VU
 	rc *rawclient.RawClient
+	l  Limiter
 }
 
 type (
@@ -25,13 +26,21 @@ type (
 		Success  bool
 		ObjectID string
 		Error    string
+		Abort    bool
 	}
 
 	GetResponse    SuccessOrErrorResponse
 	DeleteResponse SuccessOrErrorResponse
 )
 
-func (c *Client) Put(containerID string, headers map[string]string, payload goja.ArrayBuffer) PutResponse {
+func (c *Client) Put(containerID string, headers map[string]string, payload datagen.Payload) PutResponse {
+	if c.l.IsFull() {
+		return PutResponse{
+			Success: false,
+			Error:   "engine size limit reached",
+			Abort:   true,
+		}
+	}
 	id, err := c.rc.Put(c.vu.Context(), mustParseContainerID(containerID), nil, headers, payload.Bytes())
 	if err != nil {
 		return PutResponse{Error: err.Error()}

internal/local/limiter.go

@@ -0,0 +1,105 @@
+package local
+
+import (
+	"sync/atomic"
+	"time"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/engine"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/metrics"
+)
+
+var (
+	_ Limiter = &noopLimiter{}
+	_ Limiter = &sizeLimiter{}
+)
+
+type Limiter interface {
+	engine.MetricRegister
+	IsFull() bool
+}
+
+func NewLimiter(maxSizeGB int64) Limiter {
+	if maxSizeGB < 0 {
+		panic("max size is negative")
+	}
+	if maxSizeGB == 0 {
+		return &noopLimiter{}
+	}
+	return &sizeLimiter{
+		maxSize:     maxSizeGB * 1024 * 1024 * 1024,
+		currentSize: &atomic.Int64{},
+	}
+}
+
+type sizeLimiter struct {
+	maxSize     int64
+	currentSize *atomic.Int64
+}
+
+func (*sizeLimiter) AddMethodDuration(method string, d time.Duration)                {}
+func (*sizeLimiter) AddToContainerSize(cnrID string, size int64)                     {}
+func (*sizeLimiter) AddToObjectCounter(shardID string, objectType string, delta int) {}
+func (*sizeLimiter) ClearErrorCounter(shardID string)                                {}
+func (*sizeLimiter) DeleteShardMetrics(shardID string)                               {}
+func (*sizeLimiter) GC() metrics.GCMetrics                                           { return &noopGCMetrics{} }
+func (*sizeLimiter) IncErrorCounter(shardID string)                                  {}
+func (*sizeLimiter) SetMode(shardID string, mode mode.Mode)                          {}
+func (*sizeLimiter) SetObjectCounter(shardID string, objectType string, v uint64)    {}
+func (*sizeLimiter) WriteCache() metrics.WriteCacheMetrics                           { return &noopWriteCacheMetrics{} }
+func (*sizeLimiter) DeleteContainerSize(cnrID string)                                {}
+func (*sizeLimiter) DeleteContainerCount(cnrID string)                               {}
+func (*sizeLimiter) SetContainerObjectCounter(_, _, _ string, _ uint64)              {}
+func (*sizeLimiter) IncContainerObjectCounter(_, _, _ string)                        {}
+func (*sizeLimiter) SubContainerObjectCounter(_, _, _ string, _ uint64)              {}
+func (*sizeLimiter) IncRefillObjectsCount(_, _ string, _ int, _ bool)                {}
+func (*sizeLimiter) SetRefillPercent(_, _ string, _ uint32)                          {}
+func (*sizeLimiter) SetRefillStatus(_, _, _ string)                                  {}
+
+func (sl *sizeLimiter) AddToPayloadCounter(shardID string, size int64) {
+	sl.currentSize.Add(size)
+}
+
+func (sl *sizeLimiter) IsFull() bool {
+	cur := sl.currentSize.Load()
+	return cur > sl.maxSize
+}
+
+type noopLimiter struct{}
+
+func (*noopLimiter) AddMethodDuration(method string, d time.Duration)                {}
+func (*noopLimiter) AddToContainerSize(cnrID string, size int64)                     {}
+func (*noopLimiter) AddToObjectCounter(shardID string, objectType string, delta int) {}
+func (*noopLimiter) AddToPayloadCounter(shardID string, size int64)                  {}
+func (*noopLimiter) ClearErrorCounter(shardID string)                                {}
+func (*noopLimiter) DeleteShardMetrics(shardID string)                               {}
+func (*noopLimiter) GC() metrics.GCMetrics                                           { return &noopGCMetrics{} }
+func (*noopLimiter) IncErrorCounter(shardID string)                                  {}
+func (*noopLimiter) SetMode(shardID string, mode mode.Mode)                          {}
+func (*noopLimiter) SetObjectCounter(shardID string, objectType string, v uint64)    {}
+func (*noopLimiter) WriteCache() metrics.WriteCacheMetrics                           { return &noopWriteCacheMetrics{} }
+func (*noopLimiter) IsFull() bool                                                    { return false }
+func (*noopLimiter) DeleteContainerSize(cnrID string)                                {}
+func (*noopLimiter) DeleteContainerCount(cnrID string)                               {}
+func (*noopLimiter) SetContainerObjectCounter(_, _, _ string, _ uint64)              {}
+func (*noopLimiter) IncContainerObjectCounter(_, _, _ string)                        {}
+func (*noopLimiter) SubContainerObjectCounter(_, _, _ string, _ uint64)              {}
+func (*noopLimiter) IncRefillObjectsCount(_, _ string, _ int, _ bool)                {}
+func (*noopLimiter) SetRefillPercent(_, _ string, _ uint32)                          {}
+func (*noopLimiter) SetRefillStatus(_, _, _ string)                                  {}
+
+type noopGCMetrics struct{}
+
+func (*noopGCMetrics) AddDeletedCount(shardID string, deleted uint64, failed uint64)          {}
+func (*noopGCMetrics) AddExpiredObjectCollectionDuration(string, time.Duration, bool, string) {}
+func (*noopGCMetrics) AddInhumedObjectCount(shardID string, count uint64, objectType string)  {}
+func (*noopGCMetrics) AddRunDuration(shardID string, d time.Duration, success bool)           {}
+
+type noopWriteCacheMetrics struct{}
+
+func (*noopWriteCacheMetrics) AddMethodDuration(_, _, _, _ string, _ bool, _ time.Duration) {}
+func (*noopWriteCacheMetrics) Close(_, _ string)                                            {}
+func (*noopWriteCacheMetrics) IncOperationCounter(_, _, _, _ string, _ metrics.NullBool)    {}
+func (*noopWriteCacheMetrics) SetActualCount(_, _, _ string, count uint64)                  {}
+func (*noopWriteCacheMetrics) SetEstimateSize(_, _, _ string, _ uint64)                     {}
+func (*noopWriteCacheMetrics) SetMode(shardID string, mode string)                          {}

internal/local/local.go

@@ -40,15 +40,18 @@ type RootModule struct {
 	mu sync.Mutex
 	// configFile is the name of the configuration file used during one test.
 	configFile string
+	// configDir is the name of the configuration directory used during one test.
+	configDir string
 	// ng is the engine instance used during one test, corresponding to the configFile. Each VU
 	// gets the same engine instance.
 	ng *engine.StorageEngine
+	l  Limiter
 }
 
 // Local represents an instance of the module for every VU.
 type Local struct {
 	vu            modules.VU
-	ResolveEngine func(context.Context, string, bool) (*engine.StorageEngine, error)
+	ResolveEngine func(context.Context, string, string, bool, int64) (*engine.StorageEngine, Limiter, error)
 }
 
 // Ensure the interfaces are implemented correctly.
@@ -56,9 +59,9 @@ var (
 	_ modules.Module   = &RootModule{}
 	_ modules.Instance = &Local{}
 
-	objPutTotal, objPutFails, objPutDuration          *metrics.Metric
-	objGetTotal, objGetFails, objGetDuration          *metrics.Metric
-	objDeleteTotal, objDeleteFails, objDeleteDuration *metrics.Metric
+	objPutSuccess, objPutFails, objPutDuration, objPutData *metrics.Metric
+	objGetSuccess, objGetFails, objGetDuration, objGetData *metrics.Metric
+	objDeleteSuccess, objDeleteFails, objDeleteDuration    *metrics.Metric
 )
 
 func init() {
@@ -71,7 +74,7 @@ func (r *RootModule) NewModuleInstance(vu modules.VU) modules.Instance {
 	return NewLocalModuleInstance(vu, r.GetOrCreateEngine)
 }
 
-func NewLocalModuleInstance(vu modules.VU, resolveEngine func(context.Context, string, bool) (*engine.StorageEngine, error)) *Local {
+func NewLocalModuleInstance(vu modules.VU, resolveEngine func(context.Context, string, string, bool, int64) (*engine.StorageEngine, Limiter, error)) *Local {
 	return &Local{
 		vu:            vu,
 		ResolveEngine: resolveEngine,
@@ -100,45 +103,53 @@ func checkResourceLimits() error {
 	return nil
 }
 
-// GetOrCreateEngine returns the current engine instance for the given configuration file,
+// GetOrCreateEngine returns the current engine instance for the given configuration file or directory,
 // creating a new one if none exists. Note that the identity of configuration files is their
 // file name for the purposes of test runs.
-func (r *RootModule) GetOrCreateEngine(ctx context.Context, configFile string, debug bool) (*engine.StorageEngine, error) {
+func (r *RootModule) GetOrCreateEngine(ctx context.Context, configFile string, configDir string, debug bool, maxSizeGB int64) (*engine.StorageEngine, Limiter, error) {
 	r.mu.Lock()
 	defer r.mu.Unlock()
 
-	if len(configFile) == 0 {
-		return nil, errors.New("configFile cannot be empty")
+	if len(configFile) == 0 && len(configDir) == 0 {
+		return nil, nil, errors.New("provide configFile or configDir")
 	}
 
+	if r.l == nil {
+		r.l = NewLimiter(maxSizeGB)
+	}
 	// Create and initialize engine for the given configFile if it doesn't exist already
 	if r.ng == nil {
 		r.configFile = configFile
-		appCfg := config.New(configFile, "", "")
-		ngOpts, shardOpts, err := storageEngineOptionsFromConfig(appCfg, debug)
+		r.configDir = configDir
+		appCfg := config.New(configFile, configDir, "")
+		ngOpts, shardOpts, err := storageEngineOptionsFromConfig(ctx, appCfg, debug, r.l)
 		if err != nil {
-			return nil, fmt.Errorf("creating engine options from config: %v", err)
+			return nil, nil, fmt.Errorf("creating engine options from config: %v", err)
 		}
 		if err := checkResourceLimits(); err != nil {
-			return nil, err
+			return nil, nil, err
 		}
 		r.ng = engine.New(ngOpts...)
 		for i, opts := range shardOpts {
-			if _, err := r.ng.AddShard(opts...); err != nil {
-				return nil, fmt.Errorf("adding shard %d: %v", i, err)
+			if _, err := r.ng.AddShard(ctx, opts...); err != nil {
+				return nil, nil, fmt.Errorf("adding shard %d: %v", i, err)
 			}
 		}
-		if err := r.ng.Open(); err != nil {
-			return nil, fmt.Errorf("opening engine: %v", err)
+		if err := r.ng.Open(ctx); err != nil {
+			return nil, nil, fmt.Errorf("opening engine: %v", err)
 		}
 		if err := r.ng.Init(ctx); err != nil {
-			return nil, fmt.Errorf("initializing engine: %v", err)
+			return nil, nil, fmt.Errorf("initializing engine: %v", err)
 		}
 	} else if configFile != r.configFile {
-		return nil, fmt.Errorf("GetOrCreateEngine called with mismatching configFile after engine was initialized: got %q, want %q", configFile, r.configFile)
+		return nil, nil, fmt.Errorf("GetOrCreateEngine called with mismatching configFile after engine was "+
+			"initialized: got %q, want %q", configFile, r.configFile)
+	} else if configDir != r.configDir {
+		return nil, nil, fmt.Errorf("GetOrCreateEngine called with mismatching configDir after engine was "+
+			"initialized: got %q, want %q", configDir, r.configDir)
 	}
 
-	return r.ng, nil
+	return r.ng, r.l, nil
 }
 
 // Exports implements the modules.Instance interface and returns the exports
@@ -149,10 +160,10 @@ func (s *Local) Exports() modules.Exports {
 
 func (s *Local) VU() modules.VU { return s.vu }
 
-func (s *Local) Connect(configFile, hexKey string, debug bool) (*Client, error) {
-	ng, err := s.ResolveEngine(s.VU().Context(), configFile, debug)
+func (s *Local) Connect(configFile, configDir, hexKey string, debug bool, maxSizeGB int64) (*Client, error) {
+	ng, l, err := s.ResolveEngine(s.VU().Context(), configFile, configDir, debug, maxSizeGB)
 	if err != nil {
-		return nil, fmt.Errorf("connecting to engine for config %q: %v", configFile, err)
+		return nil, fmt.Errorf("connecting to engine for config - file %q dir %q: %v", configFile, configDir, err)
 	}
 
 	key, err := ParseOrCreateKey(hexKey)
@@ -161,18 +172,19 @@ func (s *Local) Connect(configFile, hexKey string, debug bool) (*Client, error)
 	}
 
 	// Register metrics.
-	registry := metrics.NewRegistry()
-	objPutTotal, _ = registry.NewMetric("local_obj_put_total", metrics.Counter)
-	objPutFails, _ = registry.NewMetric("local_obj_put_fails", metrics.Counter)
-	objPutDuration, _ = registry.NewMetric("local_obj_put_duration", metrics.Trend, metrics.Time)
+	objPutSuccess, _ = stats.Registry.NewMetric("local_obj_put_success", metrics.Counter)
+	objPutFails, _ = stats.Registry.NewMetric("local_obj_put_fails", metrics.Counter)
+	objPutDuration, _ = stats.Registry.NewMetric("local_obj_put_duration", metrics.Trend, metrics.Time)
+	objPutData, _ = stats.Registry.NewMetric("local_obj_put_bytes", metrics.Counter, metrics.Data)
 
-	objGetTotal, _ = registry.NewMetric("local_obj_get_total", metrics.Counter)
-	objGetFails, _ = registry.NewMetric("local_obj_get_fails", metrics.Counter)
-	objGetDuration, _ = registry.NewMetric("local_obj_get_duration", metrics.Trend, metrics.Time)
+	objGetSuccess, _ = stats.Registry.NewMetric("local_obj_get_success", metrics.Counter)
+	objGetFails, _ = stats.Registry.NewMetric("local_obj_get_fails", metrics.Counter)
+	objGetDuration, _ = stats.Registry.NewMetric("local_obj_get_duration", metrics.Trend, metrics.Time)
+	objGetData, _ = stats.Registry.NewMetric("local_obj_get_bytes", metrics.Counter, metrics.Data)
 
-	objDeleteTotal, _ = registry.NewMetric("local_obj_delete_total", metrics.Counter)
-	objDeleteFails, _ = registry.NewMetric("local_obj_delete_fails", metrics.Counter)
-	objDeleteDuration, _ = registry.NewMetric("local_obj_delete_duration", metrics.Trend, metrics.Time)
+	objDeleteSuccess, _ = stats.Registry.NewMetric("local_obj_delete_success", metrics.Counter)
+	objDeleteFails, _ = stats.Registry.NewMetric("local_obj_delete_fails", metrics.Counter)
+	objDeleteDuration, _ = stats.Registry.NewMetric("local_obj_delete_duration", metrics.Trend, metrics.Time)
 
 	// Create raw client backed by local storage engine.
 	rc := rawclient.New(ng,
@@ -181,30 +193,32 @@ func (s *Local) Connect(configFile, hexKey string, debug bool) (*Client, error)
 			if err != nil {
 				stats.Report(s.vu, objPutFails, 1)
 			} else {
-				stats.Report(s.vu, objPutTotal, 1)
+				stats.Report(s.vu, objPutSuccess, 1)
 				stats.ReportDataSent(s.vu, float64(sz))
 				stats.Report(s.vu, objPutDuration, metrics.D(dt))
+				stats.Report(s.vu, objPutData, float64(sz))
 			}
 		}),
 		rawclient.WithGetHandler(func(sz uint64, err error, dt time.Duration) {
 			if err != nil {
 				stats.Report(s.vu, objGetFails, 1)
 			} else {
-				stats.Report(s.vu, objGetTotal, 1)
+				stats.Report(s.vu, objGetSuccess, 1)
 				stats.Report(s.vu, objGetDuration, metrics.D(dt))
 				stats.ReportDataReceived(s.vu, float64(sz))
+				stats.Report(s.vu, objGetData, float64(sz))
 			}
 		}),
 		rawclient.WithDeleteHandler(func(err error, dt time.Duration) {
 			if err != nil {
 				stats.Report(s.vu, objDeleteFails, 1)
 			} else {
-				stats.Report(s.vu, objDeleteTotal, 1)
+				stats.Report(s.vu, objDeleteSuccess, 1)
 				stats.Report(s.vu, objDeleteDuration, metrics.D(dt))
 			}
 		}),
 	)
-	return &Client{vu: s.vu, rc: rc}, nil
+	return &Client{vu: s.vu, rc: rc, l: l}, nil
 }
 
 type epochState struct{}
@@ -217,7 +231,7 @@ func (epochState) CurrentEpoch() uint64 { return 0 }
 // preloaded the storage (if any), by using the same configuration file.
 //
 // Note that the configuration file only needs to contain the storage-specific sections.
-func storageEngineOptionsFromConfig(c *config.Config, debug bool) ([]engine.Option, [][]shard.Option, error) {
+func storageEngineOptionsFromConfig(ctx context.Context, c *config.Config, debug bool, l Limiter) ([]engine.Option, [][]shard.Option, error) {
 	log := zap.L()
 	if debug {
 		var err error
@@ -231,11 +245,12 @@ func storageEngineOptionsFromConfig(c *config.Config, debug bool) ([]engine.Opti
 		engine.WithErrorThreshold(engineconfig.ShardErrorThreshold(c)),
 		engine.WithShardPoolSize(engineconfig.ShardPoolSize(c)),
 		engine.WithLogger(&logger.Logger{Logger: log}),
+		engine.WithMetrics(l),
 	}
 
 	var shOpts [][]shard.Option
 
-	engineconfig.IterateShards(c, false, func(sc *shardconfig.Config) error {
+	err := engineconfig.IterateShards(c, false, func(sc *shardconfig.Config) error {
 		opts := []shard.Option{
 			shard.WithRefillMetabase(sc.RefillMetabase()),
 			shard.WithMode(sc.Mode()),
@@ -251,6 +266,7 @@ func storageEngineOptionsFromConfig(c *config.Config, debug bool) ([]engine.Opti
 					cfg := blobovniczaconfig.From((*config.Config)(scfg))
 					ss := blobstor.SubStorage{
 						Storage: blobovniczatree.NewBlobovniczaTree(
+							ctx,
 							blobovniczatree.WithRootPath(scfg.Path()),
 							blobovniczatree.WithPermissions(scfg.Perm()),
 							blobovniczatree.WithBlobovniczaSize(cfg.Size()),
@@ -292,17 +308,22 @@ func storageEngineOptionsFromConfig(c *config.Config, debug bool) ([]engine.Opti
 
 		// write cache
 		if wc := sc.WriteCache(); wc.Enabled() {
-			opts = append(opts, shard.WithWriteCacheOptions(
-				writecache.WithPath(wc.Path()),
-				writecache.WithMaxBatchSize(wc.BoltDB().MaxBatchSize()),
-				writecache.WithMaxBatchDelay(wc.BoltDB().MaxBatchDelay()),
-				writecache.WithMaxObjectSize(wc.MaxObjectSize()),
-				writecache.WithSmallObjectSize(wc.SmallObjectSize()),
-				writecache.WithFlushWorkersCount(wc.WorkersNumber()),
-				writecache.WithMaxCacheSize(wc.SizeLimit()),
-				writecache.WithNoSync(wc.NoSync()),
-				writecache.WithLogger(&logger.Logger{Logger: log}),
-			))
+			opts = append(opts,
+				shard.WithWriteCache(true),
+				shard.WithWriteCacheOptions(
+					[]writecache.Option{
+						writecache.WithPath(wc.Path()),
+						writecache.WithMaxBatchSize(wc.BoltDB().MaxBatchSize()),
+						writecache.WithMaxBatchDelay(wc.BoltDB().MaxBatchDelay()),
+						writecache.WithMaxObjectSize(wc.MaxObjectSize()),
+						writecache.WithSmallObjectSize(wc.SmallObjectSize()),
+						writecache.WithFlushWorkersCount(wc.WorkerCount()),
+						writecache.WithMaxCacheSize(wc.SizeLimit()),
+						writecache.WithNoSync(wc.NoSync()),
+						writecache.WithLogger(&logger.Logger{Logger: log}),
+					},
+				),
+			)
 		}
 
 		// tree
@@ -354,7 +375,9 @@ func storageEngineOptionsFromConfig(c *config.Config, debug bool) ([]engine.Opti
 
 		return nil
 	})
-
+	if err != nil {
+		return nil, nil, fmt.Errorf("iterate shards: %w", err)
+	}
 	return ngOpts, shOpts, nil
 }
 

internal/local/rawclient/rawclient.go

@@ -52,7 +52,7 @@ func (c *RawClient) Put(ctx context.Context, containerID cid.ID, ownerID *user.I
 
 	obj := object.New()
 	obj.SetContainerID(containerID)
-	obj.SetOwnerID(ownerID)
+	obj.SetOwnerID(*ownerID)
 	obj.SetAttributes(attrs...)
 	obj.SetPayload(payload)
 	obj.SetPayloadSize(uint64(sz))

internal/native/cache.go

@@ -0,0 +1,58 @@
+package native
+
+import (
+	"context"
+	"sync"
+	"time"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
+)
+
+const networkCacheTTL = time.Minute
+
+var networkInfoCache = &networkInfoCacheT{}
+
+type networkInfoCacheT struct {
+	guard   sync.RWMutex
+	current *netmap.NetworkInfo
+	fetchTS time.Time
+}
+
+func (c *networkInfoCacheT) getOrFetch(ctx context.Context, cli *client.Client) (*netmap.NetworkInfo, error) {
+	if v := c.get(); v != nil {
+		return v, nil
+	}
+	return c.fetch(ctx, cli)
+}
+
+func (c *networkInfoCacheT) get() *netmap.NetworkInfo {
+	c.guard.RLock()
+	defer c.guard.RUnlock()
+
+	if c.current == nil || time.Since(c.fetchTS) > networkCacheTTL {
+		return nil
+	}
+
+	return c.current
+}
+
+func (c *networkInfoCacheT) fetch(ctx context.Context, cli *client.Client) (*netmap.NetworkInfo, error) {
+	c.guard.Lock()
+	defer c.guard.Unlock()
+
+	if time.Since(c.fetchTS) <= networkCacheTTL {
+		return c.current, nil
+	}
+
+	res, err := cli.NetworkInfo(ctx, client.PrmNetworkInfo{})
+	if err != nil {
+		return nil, err
+	}
+
+	v := res.Info()
+	c.current = &v
+	c.fetchTS = time.Now()
+
+	return c.current, nil
+}

internal/native/client.go

@@ -1,7 +1,6 @@
 package native
 
 import (
-	"bytes"
 	"context"
 	"crypto/ecdsa"
 	"crypto/sha256"
@@ -23,19 +22,20 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/version"
 	"git.frostfs.info/TrueCloudLab/tzhash/tz"
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/datagen"
 	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/stats"
-	"github.com/dop251/goja"
 	"go.k6.io/k6/js/modules"
 	"go.k6.io/k6/metrics"
 )
 
 type (
 	Client struct {
-		vu      modules.VU
-		key     ecdsa.PrivateKey
-		tok     session.Object
-		cli     *client.Client
-		bufsize int
+		vu             modules.VU
+		key            ecdsa.PrivateKey
+		tok            session.Object
+		cli            *client.Client
+		prepareLocally bool
+		maxObjSize     uint64
 	}
 
 	PutResponse struct {
@@ -66,30 +66,19 @@ type (
 	}
 
 	PreparedObject struct {
-		vu      modules.VU
-		key     ecdsa.PrivateKey
-		cli     *client.Client
-		bufsize int
-
-		hdr     object.Object
-		payload []byte
+		vu             modules.VU
+		key            ecdsa.PrivateKey
+		cli            *client.Client
+		hdr            object.Object
+		payload        []byte
+		prepareLocally bool
+		maxObjSize     uint64
 	}
 )
 
 const defaultBufferSize = 64 * 1024
 
-func (c *Client) SetBufferSize(size int) {
-	if size < 0 {
-		panic("buffer size must be positive")
-	}
-	if size == 0 {
-		c.bufsize = defaultBufferSize
-	} else {
-		c.bufsize = size
-	}
-}
-
-func (c *Client) Put(containerID string, headers map[string]string, payload goja.ArrayBuffer) PutResponse {
+func (c *Client) Put(containerID string, headers map[string]string, payload datagen.Payload, chunkSize int) PutResponse {
 	cliContainerID := parseContainerID(containerID)
 
 	tok := c.tok
@@ -113,10 +102,10 @@ func (c *Client) Put(containerID string, headers map[string]string, payload goja
 
 	var o object.Object
 	o.SetContainerID(cliContainerID)
-	o.SetOwnerID(&owner)
+	o.SetOwnerID(owner)
 	o.SetAttributes(attrs...)
 
-	resp, err := put(c.vu, c.bufsize, c.cli, &tok, &o, payload.Bytes())
+	resp, err := put(c.vu, c.cli, c.prepareLocally, &tok, &o, payload, chunkSize, c.maxObjSize)
 	if err != nil {
 		return PutResponse{Success: false, Error: err.Error()}
 	}
@@ -140,9 +129,9 @@ func (c *Client) Delete(containerID string, objectID string) DeleteResponse {
 	start := time.Now()
 
 	var prm client.PrmObjectDelete
-	prm.ByID(cliObjectID)
-	prm.FromContainer(cliContainerID)
-	prm.WithinSession(tok)
+	prm.ObjectID = &cliObjectID
+	prm.ContainerID = &cliContainerID
+	prm.Session = &tok
 
 	_, err = c.cli.ObjectDelete(c.vu.Context(), prm)
 	if err != nil {
@@ -150,7 +139,7 @@ func (c *Client) Delete(containerID string, objectID string) DeleteResponse {
 		return DeleteResponse{Success: false, Error: err.Error()}
 	}
 
-	stats.Report(c.vu, objDeleteTotal, 1)
+	stats.Report(c.vu, objDeleteSuccess, 1)
 	stats.Report(c.vu, objDeleteDuration, metrics.D(time.Since(start)))
 	return DeleteResponse{Success: true}
 }
@@ -171,12 +160,12 @@ func (c *Client) Get(containerID, objectID string) GetResponse {
 	start := time.Now()
 
 	var prm client.PrmObjectGet
-	prm.ByID(cliObjectID)
-	prm.FromContainer(cliContainerID)
-	prm.WithinSession(tok)
+	prm.ObjectID = &cliObjectID
+	prm.ContainerID = &cliContainerID
+	prm.Session = &tok
 
-	var objSize = 0
-	err = get(c.cli, prm, c.vu.Context(), c.bufsize, func(data []byte) {
+	objSize := 0
+	err = get(c.cli, prm, c.vu.Context(), func(data []byte) {
 		objSize += len(data)
 	})
 	if err != nil {
@@ -184,9 +173,10 @@ func (c *Client) Get(containerID, objectID string) GetResponse {
 		return GetResponse{Success: false, Error: err.Error()}
 	}
 
-	stats.Report(c.vu, objGetTotal, 1)
+	stats.Report(c.vu, objGetSuccess, 1)
 	stats.Report(c.vu, objGetDuration, metrics.D(time.Since(start)))
 	stats.ReportDataReceived(c.vu, float64(objSize))
+	stats.Report(c.vu, objGetData, float64(objSize))
 	return GetResponse{Success: true}
 }
 
@@ -194,10 +184,9 @@ func get(
 	cli *client.Client,
 	prm client.PrmObjectGet,
 	ctx context.Context,
-	bufSize int,
 	onDataChunk func(chunk []byte),
 ) error {
-	var buf = make([]byte, bufSize)
+	buf := make([]byte, defaultBufferSize)
 
 	objectReader, err := cli.ObjectGetInit(ctx, prm)
 	if err != nil {
@@ -240,12 +229,12 @@ func (c *Client) VerifyHash(containerID, objectID, expectedHash string) VerifyHa
 	}
 
 	var prm client.PrmObjectGet
-	prm.ByID(cliObjectID)
-	prm.FromContainer(cliContainerID)
-	prm.WithinSession(tok)
+	prm.ObjectID = &cliObjectID
+	prm.ContainerID = &cliContainerID
+	prm.Session = &tok
 
 	hasher := sha256.New()
-	err = get(c.cli, prm, c.vu.Context(), c.bufsize, func(data []byte) {
+	err = get(c.cli, prm, c.vu.Context(), func(data []byte) {
 		hasher.Write(data)
 	})
 	if err != nil {
@@ -253,7 +242,7 @@ func (c *Client) VerifyHash(containerID, objectID, expectedHash string) VerifyHa
 	}
 	actualHash := hex.EncodeToString(hasher.Sum(nil))
 	if actualHash != expectedHash {
-		return VerifyHashResponse{Success: true, Error: "hash mismatch"}
+		return VerifyHashResponse{Success: false, Error: "hash mismatch"}
 	}
 
 	return VerifyHashResponse{Success: true}
@@ -322,10 +311,9 @@ func (c *Client) PutContainer(params map[string]string) PutContainerResponse {
 	}
 
 	start := time.Now()
-	var prm client.PrmContainerPut
-	prm.SetContainer(cnr)
-
-	res, err := c.cli.ContainerPut(c.vu.Context(), prm)
+	res, err := c.cli.ContainerPut(c.vu.Context(), client.PrmContainerPut{
+		Container: &cnr,
+	})
 	if err != nil {
 		return c.putCnrErrorResponse(err)
 	}
@@ -341,7 +329,7 @@ func (c *Client) PutContainer(params map[string]string) PutContainerResponse {
 	return PutContainerResponse{Success: true, ContainerID: res.ID().EncodeToString()}
 }
 
-func (c *Client) Onsite(containerID string, payload goja.ArrayBuffer) PreparedObject {
+func (c *Client) Onsite(containerID string, payload datagen.Payload) PreparedObject {
 	maxObjectSize, epoch, hhDisabled, err := parseNetworkInfo(c.vu.Context(), c.cli)
 	if err != nil {
 		panic(err)
@@ -368,7 +356,7 @@ func (c *Client) Onsite(containerID string, payload goja.ArrayBuffer) PreparedOb
 	obj.SetVersion(&apiVersion)
 	obj.SetType(object.TypeRegular)
 	obj.SetContainerID(cliContainerID)
-	obj.SetOwnerID(&owner)
+	obj.SetOwnerID(owner)
 	obj.SetPayloadSize(uint64(ln))
 	obj.SetCreationEpoch(epoch)
 
@@ -381,13 +369,13 @@ func (c *Client) Onsite(containerID string, payload goja.ArrayBuffer) PreparedOb
 	}
 
 	return PreparedObject{
-		vu:      c.vu,
-		key:     c.key,
-		cli:     c.cli,
-		bufsize: c.bufsize,
-
-		hdr:     *obj,
-		payload: data,
+		vu:             c.vu,
+		key:            c.key,
+		cli:            c.cli,
+		hdr:            *obj,
+		payload:        data,
+		prepareLocally: c.prepareLocally,
+		maxObjSize:     c.maxObjSize,
 	}
 }
 
@@ -413,7 +401,7 @@ func (p PreparedObject) Put(headers map[string]string) PutResponse {
 		return PutResponse{Success: false, Error: err.Error()}
 	}
 
-	_, err = put(p.vu, p.bufsize, p.cli, nil, &obj, p.payload)
+	_, err = put(p.vu, p.cli, p.prepareLocally, nil, &obj, datagen.NewFixedPayload(p.payload), 0, p.maxObjSize)
 	if err != nil {
 		return PutResponse{Success: false, Error: err.Error()}
 	}
@@ -421,18 +409,44 @@ func (p PreparedObject) Put(headers map[string]string) PutResponse {
 	return PutResponse{Success: true, ObjectID: id.String()}
 }
 
-func put(vu modules.VU, bufSize int, cli *client.Client, tok *session.Object,
-	hdr *object.Object, payload []byte) (*client.ResObjectPut, error) {
+type epochSource uint64
+
+func (s epochSource) CurrentEpoch() uint64 {
+	return uint64(s)
+}
+
+func put(vu modules.VU, cli *client.Client, prepareLocally bool, tok *session.Object,
+	hdr *object.Object, payload datagen.Payload, chunkSize int, maxObjSize uint64,
+) (*client.ResObjectPut, error) {
+	bufSize := defaultBufferSize
+	if chunkSize > 0 {
+		bufSize = chunkSize
+	}
 	buf := make([]byte, bufSize)
-	rdr := bytes.NewReader(payload)
-	sz := rdr.Size()
+	rdr := payload.Reader()
+	sz := payload.Size()
 
 	// starting upload
 	start := time.Now()
 
 	var prm client.PrmObjectPutInit
 	if tok != nil {
-		prm.WithinSession(*tok)
+		prm.Session = tok
+	}
+	if chunkSize > 0 {
+		prm.MaxChunkLength = chunkSize
+	}
+	if prepareLocally {
+		ni, err := networkInfoCache.getOrFetch(vu.Context(), cli)
+		if err != nil {
+			return nil, err
+		}
+		prm.MaxSize = ni.MaxObjectSize()
+		prm.EpochSource = epochSource(ni.CurrentEpoch())
+		prm.WithoutHomomorphHash = true
+		if maxObjSize > 0 {
+			prm.MaxSize = maxObjSize
+		}
 	}
 
 	objectWriter, err := cli.ObjectPutInit(vu.Context(), prm)
@@ -441,29 +455,30 @@ func put(vu modules.VU, bufSize int, cli *client.Client, tok *session.Object,
 		return nil, err
 	}
 
-	if !objectWriter.WriteHeader(*hdr) {
+	if !objectWriter.WriteHeader(vu.Context(), *hdr) {
 		stats.Report(vu, objPutFails, 1)
-		_, err = objectWriter.Close()
+		_, err = objectWriter.Close(vu.Context())
 		return nil, err
 	}
 
 	n, _ := rdr.Read(buf)
 	for n > 0 {
-		if !objectWriter.WritePayloadChunk(buf[:n]) {
+		if !objectWriter.WritePayloadChunk(vu.Context(), buf[:n]) {
 			break
 		}
 		n, _ = rdr.Read(buf)
 	}
 
-	resp, err := objectWriter.Close()
+	resp, err := objectWriter.Close(vu.Context())
 	if err != nil {
 		stats.Report(vu, objPutFails, 1)
 		return nil, err
 	}
 
-	stats.Report(vu, objPutTotal, 1)
+	stats.Report(vu, objPutSuccess, 1)
 	stats.ReportDataSent(vu, float64(sz))
 	stats.Report(vu, objPutDuration, metrics.D(time.Since(start)))
+	stats.Report(vu, objPutData, float64(sz))
 
 	return resp, nil
 }
@@ -491,10 +506,9 @@ func (x *waitParams) setDefaults() {
 
 func (c *Client) waitForContainerPresence(ctx context.Context, cnrID cid.ID, wp *waitParams) error {
 	return waitFor(ctx, wp, func(ctx context.Context) bool {
-		var prm client.PrmContainerGet
-		prm.SetContainer(cnrID)
-
-		_, err := c.cli.ContainerGet(ctx, prm)
+		_, err := c.cli.ContainerGet(ctx, client.PrmContainerGet{
+			ContainerID: &cnrID,
+		})
 		return err == nil
 	})
 }

internal/native/native.go

@@ -8,6 +8,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	frostfsecdsa "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto/ecdsa"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/stats"
 	"github.com/google/uuid"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"go.k6.io/k6/js/modules"
@@ -28,10 +29,10 @@ var (
 	_ modules.Instance = &Native{}
 	_ modules.Module   = &RootModule{}
 
-	objPutTotal, objPutFails, objPutDuration          *metrics.Metric
-	objGetTotal, objGetFails, objGetDuration          *metrics.Metric
-	objDeleteTotal, objDeleteFails, objDeleteDuration *metrics.Metric
-	cnrPutTotal, cnrPutFails, cnrPutDuration          *metrics.Metric
+	objPutSuccess, objPutFails, objPutDuration, objPutData *metrics.Metric
+	objGetSuccess, objGetFails, objGetDuration, objGetData *metrics.Metric
+	objDeleteSuccess, objDeleteFails, objDeleteDuration    *metrics.Metric
+	cnrPutTotal, cnrPutFails, cnrPutDuration               *metrics.Metric
 )
 
 func init() {
@@ -51,13 +52,17 @@ func (n *Native) Exports() modules.Exports {
 	return modules.Exports{Default: n}
 }
 
-func (n *Native) Connect(endpoint, hexPrivateKey string, dialTimeout, streamTimeout int) (*Client, error) {
+func (n *Native) Connect(endpoint, hexPrivateKey string, dialTimeout, streamTimeout int, prepareLocally bool, maxObjSize int) (*Client, error) {
 	var (
 		cli client.Client
 		pk  *keys.PrivateKey
 		err error
 	)
 
+	if maxObjSize < 0 {
+		return nil, fmt.Errorf("max object size value must be positive")
+	}
+
 	pk, err = keys.NewPrivateKey()
 	if len(hexPrivateKey) != 0 {
 		pk, err = keys.NewPrivateKeyFromHex(hexPrivateKey)
@@ -67,19 +72,18 @@ func (n *Native) Connect(endpoint, hexPrivateKey string, dialTimeout, streamTime
 	}
 
 	var prmInit client.PrmInit
-	prmInit.ResolveFrostFSFailures()
-	prmInit.SetDefaultPrivateKey(pk.PrivateKey)
+	prmInit.Key = pk.PrivateKey
 	cli.Init(prmInit)
 
 	var prmDial client.PrmDial
-	prmDial.SetServerURI(endpoint)
+	prmDial.Endpoint = endpoint
 
 	if dialTimeout > 0 {
-		prmDial.SetTimeout(time.Duration(dialTimeout) * time.Second)
+		prmDial.DialTimeout = time.Duration(dialTimeout) * time.Second
 	}
 
 	if streamTimeout > 0 {
-		prmDial.SetStreamTimeout(time.Duration(streamTimeout) * time.Second)
+		prmDial.StreamTimeout = time.Duration(streamTimeout) * time.Second
 	}
 
 	err = cli.Dial(n.vu.Context(), prmDial)
@@ -89,9 +93,9 @@ func (n *Native) Connect(endpoint, hexPrivateKey string, dialTimeout, streamTime
 
 	// generate session token
 	exp := uint64(math.MaxUint64)
-	var prmSessionCreate client.PrmSessionCreate
-	prmSessionCreate.SetExp(exp)
-	sessionResp, err := cli.SessionCreate(n.vu.Context(), prmSessionCreate)
+	sessionResp, err := cli.SessionCreate(n.vu.Context(), client.PrmSessionCreate{
+		Expiration: exp,
+	})
 	if err != nil {
 		return nil, fmt.Errorf("dial endpoint: %s %w", endpoint, err)
 	}
@@ -114,29 +118,42 @@ func (n *Native) Connect(endpoint, hexPrivateKey string, dialTimeout, streamTime
 	tok.SetAuthKey(&key)
 	tok.SetExp(exp)
 
+	if prepareLocally && maxObjSize > 0 {
+		res, err := cli.NetworkInfo(n.vu.Context(), client.PrmNetworkInfo{})
+		if err != nil {
+			return nil, err
+		}
+		if uint64(maxObjSize) > res.Info().MaxObjectSize() {
+			return nil, fmt.Errorf("max object size must be not greater than %d bytes", res.Info().MaxObjectSize())
+		}
+	}
+
 	// register metrics
-	registry := metrics.NewRegistry()
-	objPutTotal, _ = registry.NewMetric("frostfs_obj_put_total", metrics.Counter)
-	objPutFails, _ = registry.NewMetric("frostfs_obj_put_fails", metrics.Counter)
-	objPutDuration, _ = registry.NewMetric("frostfs_obj_put_duration", metrics.Trend, metrics.Time)
 
-	objGetTotal, _ = registry.NewMetric("frostfs_obj_get_total", metrics.Counter)
-	objGetFails, _ = registry.NewMetric("frostfs_obj_get_fails", metrics.Counter)
-	objGetDuration, _ = registry.NewMetric("frostfs_obj_get_duration", metrics.Trend, metrics.Time)
+	objPutSuccess, _ = stats.Registry.NewMetric("frostfs_obj_put_success", metrics.Counter)
+	objPutFails, _ = stats.Registry.NewMetric("frostfs_obj_put_fails", metrics.Counter)
+	objPutDuration, _ = stats.Registry.NewMetric("frostfs_obj_put_duration", metrics.Trend, metrics.Time)
+	objPutData, _ = stats.Registry.NewMetric("frostfs_obj_put_bytes", metrics.Counter, metrics.Data)
 
-	objDeleteTotal, _ = registry.NewMetric("frostfs_obj_delete_total", metrics.Counter)
-	objDeleteFails, _ = registry.NewMetric("frostfs_obj_delete_fails", metrics.Counter)
-	objDeleteDuration, _ = registry.NewMetric("frostfs_obj_delete_duration", metrics.Trend, metrics.Time)
+	objGetSuccess, _ = stats.Registry.NewMetric("frostfs_obj_get_success", metrics.Counter)
+	objGetFails, _ = stats.Registry.NewMetric("frostfs_obj_get_fails", metrics.Counter)
+	objGetDuration, _ = stats.Registry.NewMetric("frostfs_obj_get_duration", metrics.Trend, metrics.Time)
+	objGetData, _ = stats.Registry.NewMetric("frostfs_obj_get_bytes", metrics.Counter, metrics.Data)
 
-	cnrPutTotal, _ = registry.NewMetric("frostfs_cnr_put_total", metrics.Counter)
-	cnrPutFails, _ = registry.NewMetric("frostfs_cnr_put_fails", metrics.Counter)
-	cnrPutDuration, _ = registry.NewMetric("frostfs_cnr_put_duration", metrics.Trend, metrics.Time)
+	objDeleteSuccess, _ = stats.Registry.NewMetric("frostfs_obj_delete_success", metrics.Counter)
+	objDeleteFails, _ = stats.Registry.NewMetric("frostfs_obj_delete_fails", metrics.Counter)
+	objDeleteDuration, _ = stats.Registry.NewMetric("frostfs_obj_delete_duration", metrics.Trend, metrics.Time)
+
+	cnrPutTotal, _ = stats.Registry.NewMetric("frostfs_cnr_put_total", metrics.Counter)
+	cnrPutFails, _ = stats.Registry.NewMetric("frostfs_cnr_put_fails", metrics.Counter)
+	cnrPutDuration, _ = stats.Registry.NewMetric("frostfs_cnr_put_duration", metrics.Trend, metrics.Time)
 
 	return &Client{
-		vu:      n.vu,
-		key:     pk.PrivateKey,
-		tok:     tok,
-		cli:     &cli,
-		bufsize: defaultBufferSize,
+		vu:             n.vu,
+		key:            pk.PrivateKey,
+		tok:            tok,
+		cli:            &cli,
+		prepareLocally: prepareLocally,
+		maxObjSize:     uint64(maxObjSize),
 	}, nil
 }

internal/registry/obj_exporter.go

@@ -0,0 +1,124 @@
+package registry
+
+import (
+	"fmt"
+	"os"
+)
+
+type ObjExporter struct {
+	selector *ObjSelector
+}
+
+type PreGenerateInfo struct {
+	Buckets    []string  `json:"buckets"`
+	Containers []string  `json:"containers"`
+	Objects    []ObjInfo `json:"objects"`
+	ObjSize    string    `json:"obj_size"`
+}
+
+type ObjInfo struct {
+	Bucket string `json:"bucket"`
+	Object string `json:"object"`
+	CID    string `json:"cid"`
+	OID    string `json:"oid"`
+}
+
+func NewObjExporter(selector *ObjSelector) *ObjExporter {
+	return &ObjExporter{selector: selector}
+}
+
+func (o *ObjExporter) ExportJSONPreGen(fileName string) error {
+	f, err := os.Create(fileName)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	// there can be a lot of object, so manually form json
+	if _, err = f.WriteString(`{"objects":[`); err != nil {
+		return err
+	}
+
+	bucketMap := make(map[string]struct{})
+	containerMap := make(map[string]struct{})
+
+	count, err := o.selector.Count()
+	if err != nil {
+		return err
+	}
+
+	var comma string
+	for i := 0; i < count; i++ {
+		info := o.selector.NextObject()
+		if info == nil {
+			break
+		}
+
+		if err = writeObjectInfo(comma, info, f); err != nil {
+			return err
+		}
+
+		if i == 0 {
+			comma = ","
+		}
+
+		if info.S3Bucket != "" {
+			bucketMap[info.S3Bucket] = struct{}{}
+		}
+		if info.CID != "" {
+			containerMap[info.CID] = struct{}{}
+		}
+	}
+
+	if _, err = f.WriteString(`]`); err != nil {
+		return err
+	}
+
+	if len(bucketMap) > 0 {
+		if err = writeContainerInfo("buckets", bucketMap, f); err != nil {
+			return err
+		}
+	}
+	if len(containerMap) > 0 {
+		if err = writeContainerInfo("containers", containerMap, f); err != nil {
+			return err
+		}
+	}
+
+	if _, err = f.WriteString(`}`); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func writeObjectInfo(comma string, info *ObjectInfo, f *os.File) (err error) {
+	var res string
+	if info.S3Bucket != "" || info.S3Key != "" {
+		res = fmt.Sprintf(`%s{"bucket":"%s","object":"%s"}`, comma, info.S3Bucket, info.S3Key)
+	} else {
+		res = fmt.Sprintf(`%s{"cid":"%s","oid":"%s"}`, comma, info.CID, info.OID)
+	}
+	_, err = f.WriteString(res)
+	return err
+}
+
+func writeContainerInfo(attrName string, bucketMap map[string]struct{}, f *os.File) (err error) {
+	if _, err = f.WriteString(fmt.Sprintf(`,"%s":[`, attrName)); err != nil {
+		return err
+	}
+
+	i := 0
+	comma := ""
+	for bucket := range bucketMap {
+		if _, err = f.WriteString(fmt.Sprintf(`%s"%s"`, comma, bucket)); err != nil {
+			return err
+		}
+		if i == 0 {
+			comma = ","
+		}
+		i++
+	}
+	_, err = f.WriteString(`]`)
+	return err
+}

internal/registry/obj_exporter_test.go

@@ -0,0 +1,156 @@
+package registry
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"math/rand"
+	"os"
+	"path/filepath"
+	"slices"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+type expectedResult struct {
+	mode     string
+	objects  []ObjectInfo
+	dir      string
+	dbName   string
+	jsonName string
+}
+
+func TestObjectExporter(t *testing.T) {
+	names := []string{"s3", "grpc"}
+	for _, name := range names {
+		t.Run(name, runExportTest)
+		t.Run(name+"-changed", runExportChangedTest)
+		t.Run(name+"-empty", runExportEmptyTest)
+	}
+}
+
+func runExportTest(t *testing.T) {
+	expected := getExpectedResult(t)
+	objReg := getFilledRegistry(t, expected)
+	objExp := NewObjExporter(NewObjSelector(objReg, 0, SelectorOneshot, &ObjFilter{Status: statusCreated}))
+
+	require.NoError(t, objExp.ExportJSONPreGen(expected.jsonName))
+	require.NoError(t, checkExported(expected.objects, expected.jsonName))
+}
+
+func runExportChangedTest(t *testing.T) {
+	expected := getExpectedResult(t)
+	objReg := getFilledRegistry(t, expected)
+
+	newStatus := randString(10)
+	num := randPositiveInt(1, len(expected.objects))
+	changedObjects := make([]ObjectInfo, num)
+	require.Equal(t, num, copy(changedObjects[:], expected.objects[:]))
+
+	sel := NewObjSelector(objReg, 0, SelectorOneshot, &ObjFilter{Status: statusCreated})
+	for i := range changedObjects {
+		changedObjects[i].Status = newStatus
+		require.NoError(t, objReg.SetObjectStatus(sel.NextObject().Id, statusCreated, newStatus))
+	}
+
+	objExp := NewObjExporter(NewObjSelector(objReg, 0, SelectorOneshot, &ObjFilter{Status: newStatus}))
+	require.NoError(t, objExp.ExportJSONPreGen(expected.jsonName))
+	require.NoError(t, checkExported(changedObjects, expected.jsonName))
+}
+
+func runExportEmptyTest(t *testing.T) {
+	expected := getExpectedResult(t)
+	expected.objects = make([]ObjectInfo, 0)
+	objReg := getFilledRegistry(t, expected)
+	objExp := NewObjExporter(NewObjSelector(objReg, 0, SelectorOneshot, &ObjFilter{Status: statusCreated}))
+
+	require.NoError(t, objExp.ExportJSONPreGen(expected.jsonName))
+	require.NoError(t, checkExported(expected.objects, expected.jsonName))
+}
+
+func getExpectedResult(t *testing.T) expectedResult {
+	num := randPositiveInt(2, 100)
+	mode := getMode(t.Name())
+	require.NotEqual(t, "", mode, "test mode should contain either \"s3\" or\"grpc\"")
+	dir := t.TempDir()
+	res := expectedResult{
+		mode:     mode,
+		objects:  generateObjectInfo(num, t.Name()),
+		dir:      dir,
+		dbName:   filepath.Join(dir, "registry-"+mode+".db"),
+		jsonName: filepath.Join(dir, "registry-"+mode+".json"),
+	}
+	return res
+}
+
+func randPositiveInt(min, max int) int {
+	return rand.Intn(max-min) + min
+}
+
+func getMode(name string) (res string) {
+	if strings.Contains(name, "s3") {
+		res = filepath.Base(name)
+	}
+	if strings.Contains(name, "grpc") {
+		res = filepath.Base(name)
+	}
+	return res
+}
+
+func generateObjectInfo(num int, mode string) []ObjectInfo {
+	res := make([]ObjectInfo, num)
+	for i := range res {
+		res[i] = randomObjectInfo()
+		if !strings.Contains(mode, "s3") {
+			res[i].S3Bucket = ""
+			res[i].S3Key = ""
+		}
+		if !strings.Contains(mode, "grpc") {
+			res[i].CID = ""
+			res[i].OID = ""
+		}
+	}
+	return res
+}
+
+func getFilledRegistry(t *testing.T, expected expectedResult) *ObjRegistry {
+	objReg := NewObjRegistry(context.Background(), expected.dbName)
+	for i := range expected.objects {
+		require.NoError(t, objReg.AddObject(expected.objects[i].CID, expected.objects[i].OID, expected.objects[i].S3Bucket, expected.objects[i].S3Key, expected.objects[i].PayloadHash))
+	}
+	return objReg
+}
+
+func checkExported(expected []ObjectInfo, fileName string) error {
+	file, err := os.ReadFile(fileName)
+	if err != nil {
+		return err
+	}
+
+	if !json.Valid(file) {
+		return fmt.Errorf("exported json file %s is invalid", fileName)
+	}
+
+	var actual PreGenerateInfo
+	if json.Unmarshal(file, &actual) != nil {
+		return err
+	}
+
+	if len(expected) != len(actual.Objects) {
+		return fmt.Errorf("expected len(): %v, got len(): %v", len(expected), len(actual.Objects))
+	}
+
+	for i := range expected {
+		if !slices.ContainsFunc(actual.Objects, func(oi ObjInfo) bool {
+			compareS3 := oi.Bucket == expected[i].S3Bucket && oi.Object == expected[i].S3Key
+			comparegRPC := oi.CID == expected[i].CID && oi.OID == expected[i].OID
+			return compareS3 && comparegRPC
+		}) {
+			return fmt.Errorf("object %v not found in exported json file %s", expected[i], fileName)
+		}
+	}
+
+	return nil
+}

internal/registry/obj_info_test.go

@@ -101,7 +101,7 @@ func randomObjectInfo() ObjectInfo {
 func randString(n int) string {
 	var sb strings.Builder
 	for i := 0; i < n; i++ {
-		sb.WriteRune('a' + rune(rand.Int())%('z'-'a'+1))
+		sb.WriteRune('a' + rune(rand.Int31())%('z'-'a'+1))
 	}
 	return sb.String()
 }

internal/registry/obj_registry.go

@@ -44,7 +44,7 @@ func NewObjRegistry(ctx context.Context, dbFilePath string) *ObjRegistry {
 }
 
 func (o *ObjRegistry) AddObject(cid, oid, s3Bucket, s3Key, payloadHash string) error {
-	return o.boltDB.Update(func(tx *bbolt.Tx) error {
+	return o.boltDB.Batch(func(tx *bbolt.Tx) error {
 		b, err := tx.CreateBucketIfNotExists([]byte(statusCreated))
 		if err != nil {
 			return err
@@ -75,7 +75,7 @@ func (o *ObjRegistry) AddObject(cid, oid, s3Bucket, s3Key, payloadHash string) e
 }
 
 func (o *ObjRegistry) SetObjectStatus(id uint64, oldStatus, newStatus string) error {
-	return o.boltDB.Update(func(tx *bbolt.Tx) error {
+	return o.boltDB.Batch(func(tx *bbolt.Tx) error {
 		oldB := tx.Bucket([]byte(oldStatus))
 		if oldB == nil {
 			return fmt.Errorf("bucket doesn't exist: '%s'", oldStatus)
@@ -110,7 +110,7 @@ func (o *ObjRegistry) SetObjectStatus(id uint64, oldStatus, newStatus string) er
 }
 
 func (o *ObjRegistry) DeleteObject(id uint64) error {
-	return o.boltDB.Update(func(tx *bbolt.Tx) error {
+	return o.boltDB.Batch(func(tx *bbolt.Tx) error {
 		return tx.ForEach(func(_ []byte, b *bbolt.Bucket) error {
 			return b.Delete(encodeId(id))
 		})

internal/registry/obj_selector.go

@@ -9,6 +9,8 @@ import (
 	"go.etcd.io/bbolt"
 )
 
+const nextObjectTimeout = 10 * time.Second
+
 type ObjFilter struct {
 	Status string
 	Age    int
@@ -20,6 +22,7 @@ type ObjSelector struct {
 	boltDB    *bbolt.DB
 	filter    *ObjFilter
 	cacheSize int
+	kind      SelectorKind
 }
 
 // objectSelectCache is the default maximum size of a batch to select from DB.
@@ -27,7 +30,7 @@ const objectSelectCache = 1000
 
 // NewObjSelector creates a new instance of object selector that can iterate over
 // objects in the specified registry.
-func NewObjSelector(registry *ObjRegistry, selectionSize int, filter *ObjFilter) *ObjSelector {
+func NewObjSelector(registry *ObjRegistry, selectionSize int, kind SelectorKind, filter *ObjFilter) *ObjSelector {
 	if selectionSize <= 0 {
 		selectionSize = objectSelectCache
 	}
@@ -40,6 +43,7 @@ func NewObjSelector(registry *ObjRegistry, selectionSize int, filter *ObjFilter)
 		filter:    filter,
 		objChan:   make(chan *ObjectInfo, selectionSize*2),
 		cacheSize: selectionSize,
+		kind:      kind,
 	}
 
 	go objSelector.selectLoop()
@@ -55,12 +59,21 @@ func NewObjSelector(registry *ObjRegistry, selectionSize int, filter *ObjFilter)
 //   - underlying registry context is done, nil objects will be returned on the
 //     currently blocked and every further NextObject calls.
 func (o *ObjSelector) NextObject() *ObjectInfo {
-	return <-o.objChan
+	if o.kind == SelectorOneshot {
+		return <-o.objChan
+	}
+
+	select {
+	case <-time.After(nextObjectTimeout):
+		return nil
+	case obj := <-o.objChan:
+		return obj
+	}
 }
 
 // Count returns total number of objects that match filter of the selector.
 func (o *ObjSelector) Count() (int, error) {
-	var count = 0
+	count := 0
 	err := o.boltDB.View(func(tx *bbolt.Tx) error {
 		b := tx.Bucket([]byte(o.filter.Status))
 		if b == nil {
@@ -160,15 +173,23 @@ func (o *ObjSelector) selectLoop() {
 			}
 		}
 
-		if len(cache) != o.cacheSize {
+		if o.kind == SelectorOneshot && len(cache) != o.cacheSize {
+			return
+		}
+
+		if o.kind != SelectorLooped && len(cache) != o.cacheSize {
 			// no more objects, wait a little; the logic could be improved.
 			select {
-			case <-time.After(time.Second * time.Duration(o.filter.Age/2)):
+			case <-time.After(time.Second):
 			case <-o.ctx.Done():
 				return
 			}
 		}
 
+		if o.kind == SelectorLooped && len(cache) != o.cacheSize {
+			lastID = 0
+		}
+
 		// clean handled objects
 		cache = cache[:0]
 	}

internal/registry/registry.go

@@ -74,7 +74,35 @@ func (r *Registry) open(dbFilePath string) *ObjRegistry {
 	return registry
 }
 
+// SelectorKind represents selector behaviour when no items are available.
+type SelectorKind byte
+
+const (
+	// SelectorAwaiting waits for a new item to arrive.
+	// This selector visits each item exactly once and can be used when items
+	// to select are being pushed into registry concurrently.
+	SelectorAwaiting = iota
+	// SelectorLooped rewinds cursor to the start after all items have been read.
+	// It can encounter duplicates and should be used mostly for read scenarious.
+	SelectorLooped
+	// SelectorOneshot visits each item exactly once and exits immediately afterwards.
+	// It may be used to artificially abort the test after all items were processed.
+	SelectorOneshot
+)
+
 func (r *Registry) GetSelector(dbFilePath string, name string, cacheSize int, filter map[string]string) *ObjSelector {
+	return r.getSelectorInternal(dbFilePath, name, cacheSize, SelectorAwaiting, filter)
+}
+
+func (r *Registry) GetLoopedSelector(dbFilePath string, name string, cacheSize int, filter map[string]string) *ObjSelector {
+	return r.getSelectorInternal(dbFilePath, name, cacheSize, SelectorLooped, filter)
+}
+
+func (r *Registry) GetOneshotSelector(dbFilePath string, name string, cacheSize int, filter map[string]string) *ObjSelector {
+	return r.getSelectorInternal(dbFilePath, name, cacheSize, SelectorOneshot, filter)
+}
+
+func (r *Registry) getSelectorInternal(dbFilePath string, name string, cacheSize int, kind SelectorKind, filter map[string]string) *ObjSelector {
 	objFilter, err := parseFilter(filter)
 	if err != nil {
 		panic(err)
@@ -86,7 +114,7 @@ func (r *Registry) GetSelector(dbFilePath string, name string, cacheSize int, fi
 	selector := r.root.selectors[name]
 	if selector == nil {
 		registry := r.open(dbFilePath)
-		selector = NewObjSelector(registry, cacheSize, objFilter)
+		selector = NewObjSelector(registry, cacheSize, kind, objFilter)
 		r.root.selectors[name] = selector
 	} else if !reflect.DeepEqual(selector.filter, objFilter) {
 		panic(fmt.Sprintf("selector %s already has been created with a different filter", name))
@@ -94,6 +122,10 @@ func (r *Registry) GetSelector(dbFilePath string, name string, cacheSize int, fi
 	return selector
 }
 
+func (r *Registry) GetExporter(selector *ObjSelector) *ObjExporter {
+	return NewObjExporter(selector)
+}
+
 func parseFilter(filter map[string]string) (*ObjFilter, error) {
 	objFilter := ObjFilter{}
 	objFilter.Status = filter["status"]

internal/s3/client.go

@@ -1,18 +1,19 @@
 package s3
 
 import (
-	"bytes"
 	"context"
 	"crypto/sha256"
 	"encoding/hex"
+	"fmt"
 	"strconv"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/datagen"
 	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/stats"
 	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/aws-sdk-go-v2/feature/s3/manager"
 	"github.com/aws/aws-sdk-go-v2/service/s3"
 	"github.com/aws/aws-sdk-go-v2/service/s3/types"
-	"github.com/dop251/goja"
 	"go.k6.io/k6/js/modules"
 	"go.k6.io/k6/metrics"
 )
@@ -49,9 +50,9 @@ type (
 	}
 )
 
-func (c *Client) Put(bucket, key string, payload goja.ArrayBuffer) PutResponse {
-	rdr := bytes.NewReader(payload.Bytes())
-	sz := rdr.Size()
+func (c *Client) Put(bucket, key string, payload datagen.Payload) PutResponse {
+	rdr := payload.Reader()
+	sz := payload.Size()
 
 	start := time.Now()
 	_, err := c.cli.PutObject(c.vu.Context(), &s3.PutObjectInput{
@@ -64,9 +65,44 @@ func (c *Client) Put(bucket, key string, payload goja.ArrayBuffer) PutResponse {
 		return PutResponse{Success: false, Error: err.Error()}
 	}
 
-	stats.Report(c.vu, objPutTotal, 1)
+	stats.Report(c.vu, objPutSuccess, 1)
 	stats.ReportDataSent(c.vu, float64(sz))
 	stats.Report(c.vu, objPutDuration, metrics.D(time.Since(start)))
+	stats.Report(c.vu, objPutData, float64(sz))
+	return PutResponse{Success: true}
+}
+
+const multipartUploadMinPartSize = 5 * 1024 * 1024 // 5MB
+
+func (c *Client) Multipart(bucket, key string, objPartSize, concurrency int, payload datagen.Payload) PutResponse {
+	if objPartSize < multipartUploadMinPartSize {
+		stats.Report(c.vu, objPutFails, 1)
+		return PutResponse{Success: false, Error: fmt.Sprintf("part size '%d' must be greater than '%d'(5 MB)", objPartSize, multipartUploadMinPartSize)}
+	}
+
+	start := time.Now()
+	uploader := manager.NewUploader(c.cli, func(u *manager.Uploader) {
+		u.PartSize = int64(objPartSize)
+		u.Concurrency = concurrency
+	})
+
+	payloadReader := payload.Reader()
+	sz := payload.Size()
+
+	_, err := uploader.Upload(c.vu.Context(), &s3.PutObjectInput{
+		Bucket: aws.String(bucket),
+		Key:    aws.String(key),
+		Body:   payloadReader,
+	})
+	if err != nil {
+		stats.Report(c.vu, objPutFails, 1)
+		return PutResponse{Success: false, Error: err.Error()}
+	}
+
+	stats.Report(c.vu, objPutSuccess, 1)
+	stats.ReportDataSent(c.vu, float64(sz))
+	stats.Report(c.vu, objPutDuration, metrics.D(time.Since(start)))
+	stats.Report(c.vu, objPutData, float64(sz))
 	return PutResponse{Success: true}
 }
 
@@ -82,7 +118,7 @@ func (c *Client) Delete(bucket, key string) DeleteResponse {
 		return DeleteResponse{Success: false, Error: err.Error()}
 	}
 
-	stats.Report(c.vu, objDeleteTotal, 1)
+	stats.Report(c.vu, objDeleteSuccess, 1)
 	stats.Report(c.vu, objDeleteDuration, metrics.D(time.Since(start)))
 	return DeleteResponse{Success: true}
 }
@@ -90,7 +126,7 @@ func (c *Client) Delete(bucket, key string) DeleteResponse {
 func (c *Client) Get(bucket, key string) GetResponse {
 	start := time.Now()
 
-	var objSize = 0
+	objSize := 0
 	err := get(c.cli, bucket, key, func(chunk []byte) {
 		objSize += len(chunk)
 	})
@@ -99,9 +135,10 @@ func (c *Client) Get(bucket, key string) GetResponse {
 		return GetResponse{Success: false, Error: err.Error()}
 	}
 
-	stats.Report(c.vu, objGetTotal, 1)
+	stats.Report(c.vu, objGetSuccess, 1)
 	stats.Report(c.vu, objGetDuration, metrics.D(time.Since(start)))
 	stats.ReportDataReceived(c.vu, float64(objSize))
+	stats.Report(c.vu, objGetData, float64(objSize))
 	return GetResponse{Success: true}
 }
 
@@ -143,7 +180,7 @@ func (c *Client) VerifyHash(bucket, key, expectedHash string) VerifyHashResponse
 	}
 	actualHash := hex.EncodeToString(hasher.Sum(nil))
 	if actualHash != expectedHash {
-		return VerifyHashResponse{Success: true, Error: "hash mismatch"}
+		return VerifyHashResponse{Success: false, Error: "hash mismatch"}
 	}
 
 	return VerifyHashResponse{Success: true}
@@ -178,7 +215,7 @@ func (c *Client) CreateBucket(bucket string, params map[string]string) CreateBuc
 		return CreateBucketResponse{Success: false, Error: err.Error()}
 	}
 
-	stats.Report(c.vu, createBucketTotal, 1)
+	stats.Report(c.vu, createBucketSuccess, 1)
 	stats.Report(c.vu, createBucketDuration, metrics.D(time.Since(start)))
 	return CreateBucketResponse{Success: true}
 }

internal/s3/s3.go

@@ -7,6 +7,7 @@ import (
 	"strconv"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/stats"
 	"github.com/aws/aws-sdk-go-v2/aws"
 	"github.com/aws/aws-sdk-go-v2/config"
 	"github.com/aws/aws-sdk-go-v2/service/s3"
@@ -28,10 +29,10 @@ var (
 	_ modules.Instance = &S3{}
 	_ modules.Module   = &RootModule{}
 
-	objPutTotal, objPutFails, objPutDuration                   *metrics.Metric
-	objGetTotal, objGetFails, objGetDuration                   *metrics.Metric
-	objDeleteTotal, objDeleteFails, objDeleteDuration          *metrics.Metric
-	createBucketTotal, createBucketFails, createBucketDuration *metrics.Metric
+	objPutSuccess, objPutFails, objPutDuration, objPutData       *metrics.Metric
+	objGetSuccess, objGetFails, objGetDuration, objGetData       *metrics.Metric
+	objDeleteSuccess, objDeleteFails, objDeleteDuration          *metrics.Metric
+	createBucketSuccess, createBucketFails, createBucketDuration *metrics.Metric
 )
 
 func init() {
@@ -94,22 +95,23 @@ func (s *S3) Connect(endpoint string, params map[string]string) (*Client, error)
 	})
 
 	// register metrics
-	registry := metrics.NewRegistry()
-	objPutTotal, _ = registry.NewMetric("aws_obj_put_total", metrics.Counter)
-	objPutFails, _ = registry.NewMetric("aws_obj_put_fails", metrics.Counter)
-	objPutDuration, _ = registry.NewMetric("aws_obj_put_duration", metrics.Trend, metrics.Time)
+	objPutSuccess, _ = stats.Registry.NewMetric("aws_obj_put_success", metrics.Counter)
+	objPutFails, _ = stats.Registry.NewMetric("aws_obj_put_fails", metrics.Counter)
+	objPutDuration, _ = stats.Registry.NewMetric("aws_obj_put_duration", metrics.Trend, metrics.Time)
+	objPutData, _ = stats.Registry.NewMetric("aws_obj_put_bytes", metrics.Counter, metrics.Data)
 
-	objGetTotal, _ = registry.NewMetric("aws_obj_get_total", metrics.Counter)
-	objGetFails, _ = registry.NewMetric("aws_obj_get_fails", metrics.Counter)
-	objGetDuration, _ = registry.NewMetric("aws_obj_get_duration", metrics.Trend, metrics.Time)
+	objGetSuccess, _ = stats.Registry.NewMetric("aws_obj_get_success", metrics.Counter)
+	objGetFails, _ = stats.Registry.NewMetric("aws_obj_get_fails", metrics.Counter)
+	objGetDuration, _ = stats.Registry.NewMetric("aws_obj_get_duration", metrics.Trend, metrics.Time)
+	objGetData, _ = stats.Registry.NewMetric("aws_obj_get_bytes", metrics.Counter, metrics.Data)
 
-	objDeleteTotal, _ = registry.NewMetric("aws_obj_delete_total", metrics.Counter)
-	objDeleteFails, _ = registry.NewMetric("aws_obj_delete_fails", metrics.Counter)
-	objDeleteDuration, _ = registry.NewMetric("aws_obj_delete_duration", metrics.Trend, metrics.Time)
+	objDeleteSuccess, _ = stats.Registry.NewMetric("aws_obj_delete_success", metrics.Counter)
+	objDeleteFails, _ = stats.Registry.NewMetric("aws_obj_delete_fails", metrics.Counter)
+	objDeleteDuration, _ = stats.Registry.NewMetric("aws_obj_delete_duration", metrics.Trend, metrics.Time)
 
-	createBucketTotal, _ = registry.NewMetric("aws_create_bucket_total", metrics.Counter)
-	createBucketFails, _ = registry.NewMetric("aws_create_bucket_fails", metrics.Counter)
-	createBucketDuration, _ = registry.NewMetric("aws_create_bucket_duration", metrics.Trend, metrics.Time)
+	createBucketSuccess, _ = stats.Registry.NewMetric("aws_create_bucket_success", metrics.Counter)
+	createBucketFails, _ = stats.Registry.NewMetric("aws_create_bucket_fails", metrics.Counter)
+	createBucketDuration, _ = stats.Registry.NewMetric("aws_create_bucket_duration", metrics.Trend, metrics.Time)
 
 	return &Client{
 		vu:  s.vu,

internal/s3local/client.go

@@ -1,14 +1,14 @@
 package s3local
 
 import (
-	"bytes"
 	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/datagen"
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/local"
 	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/stats"
-	"github.com/dop251/goja"
 	"go.k6.io/k6/js/modules"
 	"go.k6.io/k6/metrics"
 )
@@ -18,11 +18,13 @@ type Client struct {
 	l        layer.Client
 	ownerID  *user.ID
 	resolver layer.BucketResolver
+	limiter  local.Limiter
 }
 
 type (
 	SuccessOrErrorResponse struct {
 		Success bool
+		Abort   bool
 		Error   string
 	}
 
@@ -32,7 +34,14 @@ type (
 	GetResponse          SuccessOrErrorResponse
 )
 
-func (c *Client) Put(bucket, key string, payload goja.ArrayBuffer) PutResponse {
+func (c *Client) Put(bucket, key string, payload datagen.Payload) PutResponse {
+	if c.limiter.IsFull() {
+		return PutResponse{
+			Success: false,
+			Abort:   true,
+			Error:   "engine size limit reached",
+		}
+	}
 	cid, err := c.resolver.Resolve(c.vu.Context(), bucket)
 	if err != nil {
 		stats.Report(c.vu, objPutFails, 1)
@@ -48,8 +57,8 @@ func (c *Client) Put(bucket, key string, payload goja.ArrayBuffer) PutResponse {
 		},
 		Header: map[string]string{},
 		Object: key,
-		Size:   int64(len(payload.Bytes())),
-		Reader: bytes.NewReader(payload.Bytes()),
+		Size:   uint64(payload.Size()),
+		Reader: payload.Reader(),
 	}
 
 	start := time.Now()
@@ -59,8 +68,9 @@ func (c *Client) Put(bucket, key string, payload goja.ArrayBuffer) PutResponse {
 	}
 
 	stats.Report(c.vu, objPutDuration, metrics.D(time.Since(start)))
-	stats.Report(c.vu, objPutTotal, 1)
+	stats.Report(c.vu, objPutSuccess, 1)
 	stats.ReportDataSent(c.vu, float64(prm.Size))
+	stats.Report(c.vu, objPutData, float64(prm.Size))
 
 	return PutResponse{Success: true}
 }
@@ -98,16 +108,22 @@ func (c *Client) Get(bucket, key string) GetResponse {
 			Start: 0,
 			End:   uint64(extInfo.ObjectInfo.Size),
 		},
-		Writer: wr,
 	}
-	if err := c.l.GetObject(c.vu.Context(), getPrm); err != nil {
+	objPayload, err := c.l.GetObject(c.vu.Context(), getPrm)
+	if err != nil {
+		stats.Report(c.vu, objGetFails, 1)
+		return GetResponse{Error: err.Error()}
+	}
+	err = objPayload.StreamTo(wr)
+	if err != nil {
 		stats.Report(c.vu, objGetFails, 1)
 		return GetResponse{Error: err.Error()}
 	}
 
 	stats.Report(c.vu, objGetDuration, metrics.D(time.Since(start)))
-	stats.Report(c.vu, objGetTotal, 1)
+	stats.Report(c.vu, objGetSuccess, 1)
 	stats.ReportDataReceived(c.vu, wr.total)
+	stats.Report(c.vu, objGetData, wr.total)
 
 	return GetResponse{Success: true}
 }

internal/s3local/frostfs.go

@@ -13,7 +13,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
 	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/local/rawclient"
 )
 
@@ -30,15 +29,15 @@ func unimplementedMessage(fname string) string {
 		"something other than filling a cluster (i.e. PUT or GET).", fname)
 }
 
-func (*frostfs) CreateContainer(context.Context, layer.PrmContainerCreate) (cid.ID, error) {
+func (*frostfs) CreateContainer(context.Context, layer.PrmContainerCreate) (*layer.ContainerCreateResult, error) {
 	panic(unimplementedMessage("CreateContainer"))
 }
 
-func (*frostfs) Container(context.Context, cid.ID) (*container.Container, error) {
+func (*frostfs) Container(ctx context.Context, prmContainer layer.PrmContainer) (*container.Container, error) {
 	panic(unimplementedMessage("Container"))
 }
 
-func (*frostfs) UserContainers(context.Context, user.ID) ([]cid.ID, error) {
+func (*frostfs) UserContainers(ctx context.Context, containers layer.PrmUserContainers) ([]cid.ID, error) {
 	panic(unimplementedMessage("UserContainers"))
 }
 
@@ -46,7 +45,7 @@ func (*frostfs) SetContainerEACL(context.Context, eacl.Table, *session.Container
 	panic(unimplementedMessage("SetContainerEACL"))
 }
 
-func (*frostfs) ContainerEACL(context.Context, cid.ID) (*eacl.Table, error) {
+func (*frostfs) ContainerEACL(ctx context.Context, containerEACL layer.PrmContainerEACL) (*eacl.Table, error) {
 	panic(unimplementedMessage("ContainerEACL"))
 }
 
@@ -78,7 +77,7 @@ func (f *frostfs) CreateObject(ctx context.Context, prm layer.PrmObjectCreate) (
 	for _, attr := range prm.Attributes {
 		hdrs[attr[0]] = attr[1]
 	}
-	return f.Put(ctx, prm.Container, &prm.Creator, hdrs, payload)
+	return f.Put(ctx, prm.Container, nil, hdrs, payload)
 }
 
 func (f *frostfs) DeleteObject(context.Context, layer.PrmObjectDelete) error {
@@ -88,3 +87,7 @@ func (f *frostfs) DeleteObject(context.Context, layer.PrmObjectDelete) error {
 func (f *frostfs) TimeToEpoch(ctx context.Context, now time.Time, future time.Time) (uint64, uint64, error) {
 	panic(unimplementedMessage("TimeToEpoch"))
 }
+
+func (f *frostfs) SearchObjects(ctx context.Context, search layer.PrmObjectSearch) ([]oid.ID, error) {
+	panic(unimplementedMessage("SearchObjects"))
+}

internal/s3local/local.go

@@ -32,10 +32,10 @@ var (
 	_ modules.Module   = &RootModule{}
 	_ modules.Instance = &Local{}
 
-	internalObjPutTotal, internalObjPutFails, internalObjPutDuration *metrics.Metric
-	internalObjGetTotal, internalObjGetFails, internalObjGetDuration *metrics.Metric
-	objPutTotal, objPutFails, objPutDuration                         *metrics.Metric
-	objGetTotal, objGetFails, objGetDuration                         *metrics.Metric
+	internalObjPutSuccess, internalObjPutFails, internalObjPutDuration, internalObjPutData *metrics.Metric
+	internalObjGetSuccess, internalObjGetFails, internalObjGetDuration, internalObjGetData *metrics.Metric
+	objPutSuccess, objPutFails, objPutDuration, objPutData                                 *metrics.Metric
+	objGetSuccess, objGetFails, objGetDuration, objGetData                                 *metrics.Metric
 )
 
 func init() {
@@ -56,7 +56,7 @@ func (s *Local) Exports() modules.Exports {
 	return modules.Exports{Default: s}
 }
 
-func (s *Local) Connect(configFile string, params map[string]string, bucketMapping map[string]string) (*Client, error) {
+func (s *Local) Connect(configFile string, configDir string, params map[string]string, bucketMapping map[string]string, maxSizeGB int64) (*Client, error) {
 	// Parse configuration flags.
 	fs := flag.NewFlagSet("s3local", flag.ContinueOnError)
 
@@ -88,35 +88,37 @@ func (s *Local) Connect(configFile string, params map[string]string, bucketMappi
 	}
 
 	// Register metrics.
-	registry := metrics.NewRegistry()
+	internalObjPutSuccess, _ = stats.Registry.NewMetric("s3local_internal_obj_put_success", metrics.Counter)
+	internalObjPutFails, _ = stats.Registry.NewMetric("s3local_internal_obj_put_fails", metrics.Counter)
+	internalObjPutDuration, _ = stats.Registry.NewMetric("s3local_internal_obj_put_duration", metrics.Trend, metrics.Time)
+	internalObjPutData, _ = stats.Registry.NewMetric("s3local_internal_obj_put_bytes", metrics.Counter, metrics.Data)
 
-	internalObjPutTotal, _ = registry.NewMetric("s3local_internal_obj_put_total", metrics.Counter)
-	internalObjPutFails, _ = registry.NewMetric("s3local_internal_obj_put_fails", metrics.Counter)
-	internalObjPutDuration, _ = registry.NewMetric("s3local_internal_obj_put_duration", metrics.Trend, metrics.Time)
+	internalObjGetSuccess, _ = stats.Registry.NewMetric("s3local_internal_obj_get_success", metrics.Counter)
+	internalObjGetFails, _ = stats.Registry.NewMetric("s3local_internal_obj_get_fails", metrics.Counter)
+	internalObjGetDuration, _ = stats.Registry.NewMetric("s3local_internal_obj_get_duration", metrics.Trend, metrics.Time)
+	internalObjGetData, _ = stats.Registry.NewMetric("s3local_internal_obj_get_bytes", metrics.Counter, metrics.Data)
 
-	internalObjGetTotal, _ = registry.NewMetric("s3local_internal_obj_get_total", metrics.Counter)
-	internalObjGetFails, _ = registry.NewMetric("s3local_internal_obj_get_fails", metrics.Counter)
-	internalObjGetDuration, _ = registry.NewMetric("s3local_internal_obj_get_duration", metrics.Trend, metrics.Time)
+	objPutSuccess, _ = stats.Registry.NewMetric("s3local_obj_put_success", metrics.Counter)
+	objPutFails, _ = stats.Registry.NewMetric("s3local_obj_put_fails", metrics.Counter)
+	objPutDuration, _ = stats.Registry.NewMetric("s3local_obj_put_duration", metrics.Trend, metrics.Time)
+	objPutData, _ = stats.Registry.NewMetric("s3local_obj_put_bytes", metrics.Counter, metrics.Data)
 
-	objPutTotal, _ = registry.NewMetric("s3local_obj_put_total", metrics.Counter)
-	objPutFails, _ = registry.NewMetric("s3local_obj_put_fails", metrics.Counter)
-	objPutDuration, _ = registry.NewMetric("s3local_obj_put_duration", metrics.Trend, metrics.Time)
-
-	objGetTotal, _ = registry.NewMetric("s3local_obj_get_total", metrics.Counter)
-	objGetFails, _ = registry.NewMetric("s3local_obj_get_fails", metrics.Counter)
-	objGetDuration, _ = registry.NewMetric("s3local_obj_get_duration", metrics.Trend, metrics.Time)
+	objGetSuccess, _ = stats.Registry.NewMetric("s3local_obj_get_success", metrics.Counter)
+	objGetFails, _ = stats.Registry.NewMetric("s3local_obj_get_fails", metrics.Counter)
+	objGetDuration, _ = stats.Registry.NewMetric("s3local_obj_get_duration", metrics.Trend, metrics.Time)
+	objGetData, _ = stats.Registry.NewMetric("s3local_obj_get_bytes", metrics.Counter, metrics.Data)
 
 	// Create S3 layer backed by local storage engine and tree service.
-	ng, err := s.l.ResolveEngine(s.l.VU().Context(), configFile, *debugLogger)
+	ng, limiter, err := s.l.ResolveEngine(s.l.VU().Context(), configFile, configDir, *debugLogger, maxSizeGB)
 	if err != nil {
-		return nil, fmt.Errorf("connecting to engine for config %q: %v", configFile, err)
+		return nil, fmt.Errorf("connecting to engine for config - file %q dir %q: %v", configFile, configDir, err)
 	}
 
 	treeSvc := tree.NewTree(treeServiceEngineWrapper{
 		ng:   ng,
 		pos:  *nodePosition,
 		size: *nodeCount,
-	})
+	}, zap.L())
 
 	rc := rawclient.New(ng,
 		rawclient.WithKey(key.PrivateKey),
@@ -124,16 +126,18 @@ func (s *Local) Connect(configFile string, params map[string]string, bucketMappi
 			if err != nil {
 				stats.Report(s.l.VU(), internalObjPutFails, 1)
 			} else {
-				stats.Report(s.l.VU(), internalObjPutTotal, 1)
+				stats.Report(s.l.VU(), internalObjPutSuccess, 1)
 				stats.Report(s.l.VU(), internalObjPutDuration, metrics.D(dt))
+				stats.Report(s.l.VU(), internalObjPutData, float64(sz))
 			}
 		}),
 		rawclient.WithGetHandler(func(sz uint64, err error, dt time.Duration) {
 			if err != nil {
 				stats.Report(s.l.VU(), internalObjGetFails, 1)
 			} else {
-				stats.Report(s.l.VU(), internalObjGetTotal, 1)
+				stats.Report(s.l.VU(), internalObjGetSuccess, 1)
 				stats.Report(s.l.VU(), internalObjGetDuration, metrics.D(dt))
+				stats.Report(s.l.VU(), internalObjGetData, float64(sz))
 			}
 		}),
 	)
@@ -144,20 +148,24 @@ func (s *Local) Connect(configFile string, params map[string]string, bucketMappi
 	}
 
 	cfg := &layer.Config{
-		Caches:      layer.DefaultCachesConfigs(zap.L()),
+		Cache:       layer.NewCache(layer.DefaultCachesConfigs(zap.L())),
 		AnonKey:     layer.AnonymousKey{Key: key},
 		Resolver:    resolver,
 		TreeService: treeSvc,
 	}
 
 	l := layer.NewLayer(zap.L(), &frostfs{rc}, cfg)
-	l.Initialize(s.l.VU().Context(), nopEventListener{})
+	err = l.Initialize(s.l.VU().Context(), nopEventListener{})
+	if err != nil {
+		return nil, fmt.Errorf("initialize: %w", err)
+	}
 
 	return &Client{
 		vu:       s.l.VU(),
 		l:        l,
 		ownerID:  rc.OwnerID(),
 		resolver: resolver,
+		limiter:  limiter,
 	}, nil
 }
 

internal/s3local/treeService.go

@@ -115,7 +115,7 @@ func (s treeServiceEngineWrapper) GetSubTree(ctx context.Context, bktInfo *data.
 			return fmt.Errorf("getting children: %v", err)
 		}
 		for _, child := range children {
-			if err := traverse(child, curDepth+1); err != nil {
+			if err := traverse(child.ID, curDepth+1); err != nil {
 				return err
 			}
 		}
@@ -191,6 +191,12 @@ func (s treeServiceEngineWrapper) RemoveNode(ctx context.Context, bktInfo *data.
 	return err
 }
 
+func (s treeServiceEngineWrapper) GetSubTreeStream(
+	ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID uint64, depth uint32,
+) (tree.SubTreeStream, error) {
+	panic(unimplementedMessage("TreeService.GetSubTreeStream"))
+}
+
 func mapToKV(m map[string]string) []pilorama.KeyValue {
 	var kvs []pilorama.KeyValue
 	for k, v := range m {

internal/stats/stats.go

@@ -1,16 +1,54 @@
 package stats
 
 import (
+	"strings"
 	"time"
 
 	"go.k6.io/k6/js/modules"
 	"go.k6.io/k6/metrics"
 )
 
+// RootModule is the global module object type. It is instantiated once per test
+// run and will be used to create k6/x/frostfs/stats module instances for each VU.
+type RootModule struct {
+	Instance string
+}
+
+var (
+	tagSet *metrics.TagSet
+
+	Registry *metrics.Registry
+)
+
+func init() {
+	Registry = metrics.NewRegistry()
+	tagSet = Registry.RootTagSet()
+	modules.Register("k6/x/frostfs/stats", &RootModule{})
+}
+
+// SetTags sets additional tags to custom metrics.
+// Format: "key1:value1;key2:value2".
+// Panics if input has invalid format.
+func (m *RootModule) SetTags(labels string) {
+	kv := make(map[string]string)
+	pairs := strings.Split(labels, ";")
+	for _, pair := range pairs {
+		items := strings.Split(pair, ":")
+		if len(items) != 2 {
+			panic("invalid labels format")
+		}
+		kv[strings.TrimSpace(items[0])] = strings.TrimSpace(items[1])
+	}
+	for k, v := range kv {
+		tagSet = tagSet.With(k, v)
+	}
+}
+
 func Report(vu modules.VU, metric *metrics.Metric, value float64) {
 	metrics.PushIfNotDone(vu.Context(), vu.State().Samples, metrics.Sample{
 		TimeSeries: metrics.TimeSeries{
 			Metric: metric,
+			Tags:   tagSet,
 		},
 		Time:  time.Now(),
 		Value: value,
@@ -22,9 +60,11 @@ func ReportDataReceived(vu modules.VU, value float64) {
 		metrics.Sample{
 			TimeSeries: metrics.TimeSeries{
 				Metric: &metrics.Metric{},
+				Tags:   tagSet,
 			},
 			Value: value,
-			Time:  time.Now()},
+			Time:  time.Now(),
+		},
 	)
 }
 
@@ -34,8 +74,10 @@ func ReportDataSent(vu modules.VU, value float64) {
 		metrics.Sample{
 			TimeSeries: metrics.TimeSeries{
 				Metric: &metrics.Metric{},
+				Tags:   tagSet,
 			},
 			Value: value,
-			Time:  time.Now()},
+			Time:  time.Now(),
+		},
 	)
 }

internal/version/version.go

@@ -0,0 +1,6 @@
+package version
+
+var (
+	// Version is the xk6 command-line utils version.
+	Version = "dev"
+)

scenarios/grpc.js

@@ -1,173 +1,222 @@
-import datagen from 'k6/x/frostfs/datagen';
-import native from 'k6/x/frostfs/native';
-import logging from 'k6/x/frostfs/logging';
-import registry from 'k6/x/frostfs/registry';
-import { SharedArray } from 'k6/data';
 import { sleep } from 'k6';
-import { textSummary } from './libs/k6-summary-0.0.2.js';
+import { SharedArray } from 'k6/data';
+import exec from 'k6/execution';
+import logging from 'k6/x/frostfs/logging';
+import native from 'k6/x/frostfs/native';
+import registry from 'k6/x/frostfs/registry';
+import stats from 'k6/x/frostfs/stats';
+
+import { newGenerator } from './libs/datagen.js';
 import { parseEnv } from './libs/env-parser.js';
+import { textSummary } from './libs/k6-summary-0.0.2.js';
 import { uuidv4 } from './libs/k6-utils-1.4.0.js';
 
 parseEnv();
 
-const obj_list = new SharedArray('obj_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
-});
+const obj_list = new SharedArray(
+  'obj_list',
+  function () { return JSON.parse(open(__ENV.PREGEN_JSON)).objects; });
 
-const container_list = new SharedArray('container_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).containers;
-});
+const container_list = new SharedArray(
+  'container_list',
+  function () { return JSON.parse(open(__ENV.PREGEN_JSON)).containers; });
 
 const read_size = JSON.parse(open(__ENV.PREGEN_JSON)).obj_size;
-const summary_json = __ENV.SUMMARY_JSON || "/tmp/summary.json";
+const summary_json = __ENV.SUMMARY_JSON || '/tmp/summary.json';
 
 // Select random gRPC endpoint for current VU
 const grpc_endpoints = __ENV.GRPC_ENDPOINTS.split(',');
-const grpc_endpoint = grpc_endpoints[Math.floor(Math.random() * grpc_endpoints.length)];
-const grpc_client = native.connect(grpc_endpoint, '', __ENV.DIAL_TIMEOUT ? parseInt(__ENV.DIAL_TIMEOUT) : 5, __ENV.STREAM_TIMEOUT ? parseInt(__ENV.STREAM_TIMEOUT) : 60);
-const log = logging.new().withField("endpoint", grpc_endpoint);
+const grpc_endpoint =
+  grpc_endpoints[Math.floor(Math.random() * grpc_endpoints.length)];
+const grpc_client = native.connect(
+  grpc_endpoint, '', __ENV.DIAL_TIMEOUT ? parseInt(__ENV.DIAL_TIMEOUT) : 5,
+  __ENV.STREAM_TIMEOUT ? parseInt(__ENV.STREAM_TIMEOUT) : 60,
+  __ENV.PREPARE_LOCALLY ? __ENV.PREPARE_LOCALLY.toLowerCase() === 'true' : false,
+  1024 * parseInt(__ENV.MAX_OBJECT_SIZE || '0'));
+const log = logging.new().withField('endpoint', grpc_endpoint);
 
 const registry_enabled = !!__ENV.REGISTRY_FILE;
-const obj_registry = registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
+const obj_registry =
+  registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
 
 const duration = __ENV.DURATION;
 
-const delete_age = __ENV.DELETE_AGE ? parseInt(__ENV.DELETE_AGE) : undefined;
-let obj_to_delete_selector = undefined;
-if (registry_enabled && delete_age) {
-    obj_to_delete_selector = registry.getSelector(
-        __ENV.REGISTRY_FILE,
-        "obj_to_delete",
-        __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0,
-        {
-            status: "created",
-            age: delete_age,
-        }
-    );
+if (!!__ENV.METRIC_TAGS) {
+  stats.setTags(__ENV.METRIC_TAGS)
 }
 
-
-const generator = datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE), __ENV.PAYLOAD_TYPE || "");
+const read_age = __ENV.READ_AGE ? parseInt(__ENV.READ_AGE) : 10;
+let obj_to_read_selector = undefined;
+if (registry_enabled) {
+  obj_to_read_selector = registry.getLoopedSelector(
+    __ENV.REGISTRY_FILE, 'obj_to_read',
+    __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+    status: 'created',
+    age: read_age,
+  })
+}
 
 const scenarios = {};
 
 const write_vu_count = parseInt(__ENV.WRITERS || '0');
+const write_grpc_chunk_size = 1024 * parseInt(__ENV.GRPC_CHUNK_SIZE || '0')
+const generator = newGenerator(write_vu_count > 0);
 if (write_vu_count > 0) {
-    scenarios.write = {
-        executor: 'constant-vus',
-        vus: write_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_write', 
-        gracefulStop: '5s',
-    };
+  scenarios.write = {
+    executor: 'constant-vus',
+    vus: write_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_write',
+    gracefulStop: '5s',
+  };
+}
+
+const delete_age = __ENV.DELETE_AGE ? parseInt(__ENV.DELETE_AGE) : undefined;
+let obj_to_delete_selector = undefined;
+let obj_to_delete_exit_on_null = undefined;
+if (registry_enabled && delete_age) {
+  obj_to_delete_exit_on_null = write_vu_count == 0;
+
+  let constructor = obj_to_delete_exit_on_null ? registry.getOneshotSelector
+    : registry.getSelector;
+
+  obj_to_delete_selector =
+    constructor(__ENV.REGISTRY_FILE, 'obj_to_delete',
+      __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+      status: 'created',
+      age: delete_age,
+    });
 }
 
 const read_vu_count = parseInt(__ENV.READERS || '0');
 if (read_vu_count > 0) {
-    scenarios.read = {
-        executor: 'constant-vus',
-        vus: read_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_read', 
-        gracefulStop: '5s',
-    };
+  scenarios.read = {
+    executor: 'constant-vus',
+    vus: read_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_read',
+    gracefulStop: '5s',
+  };
 }
 
 const delete_vu_count = parseInt(__ENV.DELETERS || '0');
 if (delete_vu_count > 0) {
-    if (!obj_to_delete_selector) {
-        throw new Error('Positive DELETE worker number without a proper object selector');
-    }
+  if (!obj_to_delete_selector) {
+    throw new Error(
+      'Positive DELETE worker number without a proper object selector');
+  }
 
-    scenarios.delete = {
-        executor: 'constant-vus',
-        vus: delete_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_delete', 
-        gracefulStop: '5s',
-    };
+  scenarios.delete = {
+    executor: 'constant-vus',
+    vus: delete_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_delete',
+    gracefulStop: '5s',
+  };
 }
 
 export const options = {
-    scenarios,
-    setupTimeout: '5s',
+  scenarios,
+  setupTimeout: '5s',
 };
 
 export function setup() {
-    const total_vu_count = write_vu_count + read_vu_count + delete_vu_count;
+  const total_vu_count = write_vu_count + read_vu_count + delete_vu_count;
 
-    console.log(`Pregenerated containers:       ${container_list.length}`);
-    console.log(`Pregenerated read object size: ${read_size}`);
-    console.log(`Pregenerated total objects:    ${obj_list.length}`);
-    console.log(`Reading VUs:                   ${read_vu_count}`);
-    console.log(`Writing VUs:                   ${write_vu_count}`);
-    console.log(`Deleting VUs:                  ${delete_vu_count}`);
-    console.log(`Total VUs:                     ${total_vu_count}`);
+  console.log(`Pregenerated containers:       ${container_list.length}`);
+  console.log(`Pregenerated read object size: ${read_size}`);
+  console.log(`Pregenerated total objects:    ${obj_list.length}`);
+  console.log(`Reading VUs:                   ${read_vu_count}`);
+  console.log(`Writing VUs:                   ${write_vu_count}`);
+  console.log(`Deleting VUs:                  ${delete_vu_count}`);
+  console.log(`Total VUs:                     ${total_vu_count}`);
+
+  const start_timestamp = Date.now()
+  console.log(
+    `Load started at:               ${Date(start_timestamp).toString()}`)
 }
 
 export function teardown(data) {
-    if (obj_registry) {
-        obj_registry.close();
-    }
+  if (obj_registry) {
+    obj_registry.close();
+  }
+  const end_timestamp = Date.now()
+  console.log(
+    `Load finished at:              ${Date(end_timestamp).toString()}`)
 }
 
 export function handleSummary(data) {
-    return {
-        'stdout': textSummary(data, { indent: ' ', enableColors: false }),
-        [summary_json]: JSON.stringify(data),
-    };
+  return {
+    'stdout': textSummary(data, { indent: ' ', enableColors: false }),
+    [summary_json]: JSON.stringify(data),
+  };
 }
 
 export function obj_write() {
-    if (__ENV.SLEEP_WRITE) {
-        sleep(__ENV.SLEEP_WRITE);
-    }
+  if (__ENV.SLEEP_WRITE) {
+    sleep(__ENV.SLEEP_WRITE);
+  }
 
-    const headers = {
-        unique_header: uuidv4()
-    };
-    const container = container_list[Math.floor(Math.random() * container_list.length)];
+  const headers = { unique_header: uuidv4() };
+  const container =
+    container_list[Math.floor(Math.random() * container_list.length)];
 
-    const { payload, hash } = generator.genPayload(registry_enabled);
-    const resp = grpc_client.put(container, headers, payload);
-    if (!resp.success) {
-        log.withField("cid", container).error(resp.error);
-        return;
-    }
+  const payload = generator.genPayload();
+  const resp =
+    grpc_client.put(container, headers, payload, write_grpc_chunk_size);
+  if (!resp.success) {
+    log.withField('cid', container).error(resp.error);
+    return;
+  }
 
-    if (obj_registry) {
-        obj_registry.addObject(container, resp.object_id, "", "", hash);
-    }
+  if (obj_registry) {
+    obj_registry.addObject(container, resp.object_id, '', '', payload.hash());
+  }
 }
 
 export function obj_read() {
-    if (__ENV.SLEEP_READ) {
-        sleep(__ENV.SLEEP_READ);
-    }
+  if (__ENV.SLEEP_READ) {
+    sleep(__ENV.SLEEP_READ);
+  }
 
-    const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
-    const resp = grpc_client.get(obj.container, obj.object)
-    if (!resp.success) {
-        log.withFields({cid: obj.container, oid: obj.object}).error(resp.error);
+  if (obj_to_read_selector) {
+    const obj = obj_to_read_selector.nextObject();
+    if (!obj) {
+      return;
     }
+    const resp = grpc_client.get(obj.c_id, obj.o_id)
+    if (!resp.success) {
+      log.withFields({ cid: obj.c_id, oid: obj.o_id }).error(resp.error);
+    }
+    return
+  }
+
+  const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
+  const resp = grpc_client.get(obj.container, obj.object)
+  if (!resp.success) {
+    log.withFields({ cid: obj.container, oid: obj.object }).error(resp.error);
+  }
 }
 
 export function obj_delete() {
-    if (__ENV.SLEEP_DELETE) {
-        sleep(__ENV.SLEEP_DELETE);
-    }
+  if (__ENV.SLEEP_DELETE) {
+    sleep(__ENV.SLEEP_DELETE);
+  }
 
-    const obj = obj_to_delete_selector.nextObject();
-    if (!obj) {
-        return;
+  const obj = obj_to_delete_selector.nextObject();
+  if (!obj) {
+    if (obj_to_delete_exit_on_null) {
+      exec.test.abort("No more objects to select");
     }
+    return;
+  }
 
-    const resp = grpc_client.delete(obj.c_id, obj.o_id);
-    if (!resp.success) {
-        // Log errors except (2052 - object already deleted)
-        log.withFields({cid: obj.c_id, oid: obj.o_id}).error(resp.error);
-        return;
-    }
+  const resp = grpc_client.delete(obj.c_id, obj.o_id);
+  if (!resp.success) {
+    // Log errors except (2052 - object already deleted)
+    log.withFields({ cid: obj.c_id, oid: obj.o_id }).error(resp.error);
+    return;
+  }
 
-    obj_registry.deleteObject(obj.id);
+  obj_registry.deleteObject(obj.id);
 }

scenarios/grpc_car.js

@@ -1,53 +1,70 @@
-import datagen from 'k6/x/frostfs/datagen';
-import native from 'k6/x/frostfs/native';
-import logging from 'k6/x/frostfs/logging';
-import registry from 'k6/x/frostfs/registry';
-import { SharedArray } from 'k6/data';
 import { sleep } from 'k6';
-import { textSummary } from './libs/k6-summary-0.0.2.js';
+import { SharedArray } from 'k6/data';
+import logging from 'k6/x/frostfs/logging';
+import native from 'k6/x/frostfs/native';
+import registry from 'k6/x/frostfs/registry';
+import stats from 'k6/x/frostfs/stats';
+
+import { newGenerator } from './libs/datagen.js';
 import { parseEnv } from './libs/env-parser.js';
+import { textSummary } from './libs/k6-summary-0.0.2.js';
 import { uuidv4 } from './libs/k6-utils-1.4.0.js';
 
 parseEnv();
 
 const obj_list = new SharedArray('obj_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
+  return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
 });
 
 const container_list = new SharedArray('container_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).containers;
+  return JSON.parse(open(__ENV.PREGEN_JSON)).containers;
 });
 
 const read_size = JSON.parse(open(__ENV.PREGEN_JSON)).obj_size;
-const summary_json = __ENV.SUMMARY_JSON || "/tmp/summary.json";
+const summary_json = __ENV.SUMMARY_JSON || '/tmp/summary.json';
 
 // Select random gRPC endpoint for current VU
 const grpc_endpoints = __ENV.GRPC_ENDPOINTS.split(',');
-const grpc_endpoint = grpc_endpoints[Math.floor(Math.random() * grpc_endpoints.length)];
-const grpc_client = native.connect(grpc_endpoint, '', __ENV.DIAL_TIMEOUT ? parseInt(__ENV.DIAL_TIMEOUT) : 5, __ENV.STREAM_TIMEOUT ? parseInt(__ENV.STREAM_TIMEOUT) : 60);
-const log = logging.new().withField("endpoint", grpc_endpoint);
+const grpc_endpoint =
+  grpc_endpoints[Math.floor(Math.random() * grpc_endpoints.length)];
+const grpc_client = native.connect(
+  grpc_endpoint, '', __ENV.DIAL_TIMEOUT ? parseInt(__ENV.DIAL_TIMEOUT) : 5,
+  __ENV.STREAM_TIMEOUT ? parseInt(__ENV.STREAM_TIMEOUT) : 60,
+  __ENV.PREPARE_LOCALLY ? __ENV.PREPARE_LOCALLY.toLowerCase() === 'true' : false,
+  1024 * parseInt(__ENV.MAX_OBJECT_SIZE || '0'));
+const log = logging.new().withField('endpoint', grpc_endpoint);
 
 const registry_enabled = !!__ENV.REGISTRY_FILE;
-const obj_registry = registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
+const obj_registry =
+  registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
 
 const duration = __ENV.DURATION;
 
+if (!!__ENV.METRIC_TAGS) {
+  stats.setTags(__ENV.METRIC_TAGS)
+}
+
 const delete_age = __ENV.DELETE_AGE ? parseInt(__ENV.DELETE_AGE) : undefined;
 let obj_to_delete_selector = undefined;
 if (registry_enabled && delete_age) {
-    obj_to_delete_selector = registry.getSelector(
-        __ENV.REGISTRY_FILE,
-        "obj_to_delete",
-        __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0,
-        {
-            status: "created",
-            age: delete_age,
-        }
-    );
+  obj_to_delete_selector = registry.getSelector(
+    __ENV.REGISTRY_FILE, 'obj_to_delete',
+    __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+    status: 'created',
+    age: delete_age,
+  });
 }
 
-
-const generator = datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE));
+const read_age = __ENV.READ_AGE ? parseInt(__ENV.READ_AGE) : 10;
+let obj_to_read_selector = undefined;
+if (registry_enabled) {
+  obj_to_read_selector = registry.getLoopedSelector(
+    __ENV.REGISTRY_FILE, 'obj_to_read',
+    __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+    status: 'created',
+    age: read_age,
+  })
+}
 
 const scenarios = {};
 
@@ -55,144 +72,167 @@ const time_unit = __ENV.TIME_UNIT || '1s';
 const pre_alloc_write_vus = parseInt(__ENV.PRE_ALLOC_WRITERS || '0');
 const max_write_vus = parseInt(__ENV.MAX_WRITERS || pre_alloc_write_vus);
 const write_rate = parseInt(__ENV.WRITE_RATE || '0');
+const write_grpc_chunk_size = 1024 * parseInt(__ENV.GRPC_CHUNK_SIZE || '0')
+const generator = newGenerator(write_rate > 0);
 if (write_rate > 0) {
-    scenarios.write = {
-        executor: 'constant-arrival-rate',
-        duration: `${duration}s`,
-        preAllocatedVUs: pre_alloc_write_vus,
-        maxVUs: max_write_vus,
-        rate: write_rate,
-        timeUnit: time_unit,
-        exec: 'obj_write', 
-        gracefulStop: '5s',
-    };
+  scenarios.write = {
+    executor: 'constant-arrival-rate',
+    duration: `${duration}s`,
+    preAllocatedVUs: pre_alloc_write_vus,
+    maxVUs: max_write_vus,
+    rate: write_rate,
+    timeUnit: time_unit,
+    exec: 'obj_write',
+    gracefulStop: '5s',
+  };
 }
 
 const pre_alloc_read_vus = parseInt(__ENV.PRE_ALLOC_READERS || '0');
 const max_read_vus = parseInt(__ENV.MAX_READERS || pre_alloc_read_vus);
 const read_rate = parseInt(__ENV.READ_RATE || '0');
 if (read_rate > 0) {
-    scenarios.read = {
-        executor: 'constant-arrival-rate',
-        duration: `${duration}s`,
-        preAllocatedVUs: pre_alloc_write_vus,
-        maxVUs: max_read_vus,
-        rate: read_rate,
-        timeUnit: time_unit,
-        exec: 'obj_read', 
-        gracefulStop: '5s',
-    };
+  scenarios.read = {
+    executor: 'constant-arrival-rate',
+    duration: `${duration}s`,
+    preAllocatedVUs: pre_alloc_write_vus,
+    maxVUs: max_read_vus,
+    rate: read_rate,
+    timeUnit: time_unit,
+    exec: 'obj_read',
+    gracefulStop: '5s',
+  };
 }
 
 const pre_alloc_delete_vus = parseInt(__ENV.PRE_ALLOC_DELETERS || '0');
 const max_delete_vus = parseInt(__ENV.MAX_DELETERS || pre_alloc_write_vus);
 const delete_rate = parseInt(__ENV.DELETE_RATE || '0');
 if (delete_rate > 0) {
-    if (!obj_to_delete_selector) {
-        throw new Error('Positive DELETE worker number without a proper object selector');
-    }
+  if (!obj_to_delete_selector) {
+    throw new Error(
+      'Positive DELETE worker number without a proper object selector');
+  }
 
-    scenarios.delete = {
-        executor: 'constant-arrival-rate',
-        duration: `${duration}s`,
-        preAllocatedVUs: pre_alloc_delete_vus,
-        maxVUs: max_delete_vus,
-        rate: delete_rate,
-        timeUnit: time_unit,
-        exec: 'obj_delete', 
-        gracefulStop: '5s',
-    };
+  scenarios.delete = {
+    executor: 'constant-arrival-rate',
+    duration: `${duration}s`,
+    preAllocatedVUs: pre_alloc_delete_vus,
+    maxVUs: max_delete_vus,
+    rate: delete_rate,
+    timeUnit: time_unit,
+    exec: 'obj_delete',
+    gracefulStop: '5s',
+  };
 }
 
 export const options = {
-    scenarios,
-    setupTimeout: '5s',
+  scenarios,
+  setupTimeout: '5s',
 };
 
 export function setup() {
-    const total_pre_allocated_vu_count = pre_alloc_write_vus + pre_alloc_read_vus + pre_alloc_delete_vus;
-    const total_max_vu_count = max_read_vus + max_write_vus + max_delete_vus
+  const total_pre_allocated_vu_count =
+    pre_alloc_write_vus + pre_alloc_read_vus + pre_alloc_delete_vus;
+  const total_max_vu_count = max_read_vus + max_write_vus + max_delete_vus
 
-    console.log(`Pregenerated containers:       ${container_list.length}`);
-    console.log(`Pregenerated read object size: ${read_size}`);
-    console.log(`Pregenerated total objects:    ${obj_list.length}`);
-    console.log(`Pre allocated reading VUs:     ${pre_alloc_read_vus}`);
-    console.log(`Pre allocated writing VUs:     ${pre_alloc_write_vus}`);
-    console.log(`Pre allocated deleting VUs:    ${pre_alloc_delete_vus}`);
-    console.log(`Total pre allocated VUs:       ${total_pre_allocated_vu_count}`);
-    console.log(`Max reading VUs:               ${max_read_vus}`);
-    console.log(`Max writing VUs:               ${max_write_vus}`);
-    console.log(`Max deleting VUs:              ${max_delete_vus}`);
-    console.log(`Total max VUs:                 ${total_max_vu_count}`);
-    console.log(`Time unit:                     ${time_unit}`);
-    console.log(`Read rate:                     ${read_rate}`);
-    console.log(`Writing rate:                  ${write_rate}`);
-    console.log(`Delete rate:                   ${delete_rate}`);
+  console.log(`Pregenerated containers:       ${container_list.length}`);
+  console.log(`Pregenerated read object size: ${read_size}`);
+  console.log(`Pregenerated total objects:    ${obj_list.length}`);
+  console.log(`Pre allocated reading VUs:     ${pre_alloc_read_vus}`);
+  console.log(`Pre allocated writing VUs:     ${pre_alloc_write_vus}`);
+  console.log(`Pre allocated deleting VUs:    ${pre_alloc_delete_vus}`);
+  console.log(`Total pre allocated VUs:       ${total_pre_allocated_vu_count}`);
+  console.log(`Max reading VUs:               ${max_read_vus}`);
+  console.log(`Max writing VUs:               ${max_write_vus}`);
+  console.log(`Max deleting VUs:              ${max_delete_vus}`);
+  console.log(`Total max VUs:                 ${total_max_vu_count}`);
+  console.log(`Time unit:                     ${time_unit}`);
+  console.log(`Read rate:                     ${read_rate}`);
+  console.log(`Writing rate:                  ${write_rate}`);
+  console.log(`Delete rate:                   ${delete_rate}`);
+
+  const start_timestamp = Date.now()
+  console.log(
+    `Load started at:               ${Date(start_timestamp).toString()}`)
 }
 
 export function teardown(data) {
-    if (obj_registry) {
-        obj_registry.close();
-    }
+  if (obj_registry) {
+    obj_registry.close();
+  }
+  const end_timestamp = Date.now()
+  console.log(
+    `Load finished at:              ${Date(end_timestamp).toString()}`)
 }
 
 export function handleSummary(data) {
-    return {
-        'stdout': textSummary(data, { indent: ' ', enableColors: false }),
-        [summary_json]: JSON.stringify(data),
-    };
+  return {
+    'stdout': textSummary(data, { indent: ' ', enableColors: false }),
+    [summary_json]: JSON.stringify(data),
+  };
 }
 
 export function obj_write() {
-    if (__ENV.SLEEP_WRITE) {
-        sleep(__ENV.SLEEP_WRITE);
-    }
+  if (__ENV.SLEEP_WRITE) {
+    sleep(__ENV.SLEEP_WRITE);
+  }
 
-    const headers = {
-        unique_header: uuidv4()
-    };
-    const container = container_list[Math.floor(Math.random() * container_list.length)];
+  const headers = { unique_header: uuidv4() };
+  const container =
+    container_list[Math.floor(Math.random() * container_list.length)];
 
-    const { payload, hash } = generator.genPayload(registry_enabled);
-    const resp = grpc_client.put(container, headers, payload);
-    if (!resp.success) {
-        log.withField("cid", container).error(resp.error);
-        return;
-    }
+  const payload = generator.genPayload();
+  const resp =
+    grpc_client.put(container, headers, payload, write_grpc_chunk_size);
+  if (!resp.success) {
+    log.withField('cid', container).error(resp.error);
+    return;
+  }
 
-    if (obj_registry) {
-        obj_registry.addObject(container, resp.object_id, "", "", hash);
-    }
+  if (obj_registry) {
+    obj_registry.addObject(container, resp.object_id, '', '', payload.hash());
+  }
 }
 
 export function obj_read() {
-    if (__ENV.SLEEP_READ) {
-        sleep(__ENV.SLEEP_READ);
-    }
+  if (__ENV.SLEEP_READ) {
+    sleep(__ENV.SLEEP_READ);
+  }
 
-    const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
-    const resp = grpc_client.get(obj.container, obj.object)
-    if (!resp.success) {
-        log.withFields({cid: obj.container, oid: obj.object}).error(resp.error);
+  if (obj_to_read_selector) {
+    const obj = obj_to_read_selector.nextObject();
+    if (!obj) {
+      return;
     }
+    const resp = grpc_client.get(obj.c_id, obj.o_id)
+    if (!resp.success) {
+      log.withFields({ cid: obj.c_id, oid: obj.o_id }).error(resp.error);
+    }
+    return
+  }
+
+  const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
+  const resp = grpc_client.get(obj.container, obj.object)
+  if (!resp.success) {
+    log.withFields({ cid: obj.container, oid: obj.object }).error(resp.error);
+  }
 }
 
 export function obj_delete() {
-    if (__ENV.SLEEP_DELETE) {
-        sleep(__ENV.SLEEP_DELETE);
-    }
+  if (__ENV.SLEEP_DELETE) {
+    sleep(__ENV.SLEEP_DELETE);
+  }
 
-    const obj = obj_to_delete_selector.nextObject();
-    if (!obj) {
-        return;
-    }
+  const obj = obj_to_delete_selector.nextObject();
+  if (!obj) {
+    return;
+  }
 
-    const resp = grpc_client.delete(obj.c_id, obj.o_id);
-    if (!resp.success) {
-        // Log errors except (2052 - object already deleted)
-        log.withFields({cid: obj.c_id, oid: obj.o_id}).error(resp.error);
-        return;
-    }
+  const resp = grpc_client.delete(obj.c_id, obj.o_id);
+  if (!resp.success) {
+    // Log errors except (2052 - object already deleted)
+    log.withFields({ cid: obj.c_id, oid: obj.o_id }).error(resp.error);
+    return;
+  }
 
-    obj_registry.deleteObject(obj.id);
+  obj_registry.deleteObject(obj.id);
 }

scenarios/http.js

@@ -1,123 +1,143 @@
-import datagen from 'k6/x/frostfs/datagen';
+import {sleep} from 'k6';
+import {SharedArray} from 'k6/data';
+import http from 'k6/http';
 import logging from 'k6/x/frostfs/logging';
 import registry from 'k6/x/frostfs/registry';
-import http from 'k6/http';
-import { SharedArray } from 'k6/data';
-import { sleep } from 'k6';
-import { textSummary } from './libs/k6-summary-0.0.2.js';
-import { parseEnv } from './libs/env-parser.js';
-import { uuidv4 } from './libs/k6-utils-1.4.0.js';
+import stats from 'k6/x/frostfs/stats';
+
+import {newGenerator} from './libs/datagen.js';
+import {parseEnv} from './libs/env-parser.js';
+import {textSummary} from './libs/k6-summary-0.0.2.js';
+import {uuidv4} from './libs/k6-utils-1.4.0.js';
 
 parseEnv();
 
-const obj_list = new SharedArray('obj_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
+const obj_list = new SharedArray('obj_list', function() {
+  return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
 });
 
-const container_list = new SharedArray('container_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).containers;
+const container_list = new SharedArray('container_list', function() {
+  return JSON.parse(open(__ENV.PREGEN_JSON)).containers;
 });
 
 const read_size = JSON.parse(open(__ENV.PREGEN_JSON)).obj_size;
-const summary_json = __ENV.SUMMARY_JSON || "/tmp/summary.json";
+const summary_json = __ENV.SUMMARY_JSON || '/tmp/summary.json';
 
 // Select random HTTP endpoint for current VU
 const http_endpoints = __ENV.HTTP_ENDPOINTS.split(',');
-const http_endpoint = http_endpoints[Math.floor(Math.random() * http_endpoints.length)];
-const log = logging.new().withField("endpoint", http_endpoint);
+const http_endpoint =
+    http_endpoints[Math.floor(Math.random() * http_endpoints.length)];
+const log = logging.new().withField('endpoint', http_endpoint);
 
 const registry_enabled = !!__ENV.REGISTRY_FILE;
-const obj_registry = registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
+const obj_registry =
+    registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
 
 const duration = __ENV.DURATION;
 
-const generator = datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE), __ENV.PAYLOAD_TYPE || "");
+if (!!__ENV.METRIC_TAGS) {
+  stats.setTags(__ENV.METRIC_TAGS)
+}
 
 const scenarios = {};
 
 const write_vu_count = parseInt(__ENV.WRITERS || '0');
+const generator = newGenerator(write_vu_count > 0);
 if (write_vu_count > 0) {
-    scenarios.write = {
-        executor: 'constant-vus',
-        vus: write_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_write', 
-        gracefulStop: '5s',
-    }
+  scenarios.write = {
+    executor: 'constant-vus',
+    vus: write_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_write',
+    gracefulStop: '5s',
+  }
 }
 
 const read_vu_count = parseInt(__ENV.READERS || '0');
 if (read_vu_count > 0) {
-    scenarios.read = {
-        executor: 'constant-vus',
-        vus: read_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_read', 
-        gracefulStop: '5s',
-    }
+  scenarios.read = {
+    executor: 'constant-vus',
+    vus: read_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_read',
+    gracefulStop: '5s',
+  }
 }
 
 export const options = {
-    scenarios,
-    setupTimeout: '5s',
+  scenarios,
+  setupTimeout: '5s',
 };
 
 export function setup() {
-    const total_vu_count = write_vu_count + read_vu_count;
+  const total_vu_count = write_vu_count + read_vu_count;
 
-    console.log(`Pregenerated containers:       ${container_list.length}`);
-    console.log(`Pregenerated read object size: ${read_size}`);
-    console.log(`Pregenerated total objects:    ${obj_list.length}`);
-    console.log(`Reading VUs:                   ${read_vu_count}`);
-    console.log(`Writing VUs:                   ${write_vu_count}`);
-    console.log(`Total VUs:                     ${total_vu_count}`);
+  console.log(`Pregenerated containers:       ${container_list.length}`);
+  console.log(`Pregenerated read object size: ${read_size}`);
+  console.log(`Pregenerated total objects:    ${obj_list.length}`);
+  console.log(`Reading VUs:                   ${read_vu_count}`);
+  console.log(`Writing VUs:                   ${write_vu_count}`);
+  console.log(`Total VUs:                     ${total_vu_count}`);
+
+  const start_timestamp = Date.now()
+  console.log(
+      `Load started at:               ${Date(start_timestamp).toString()}`)
 }
 
 export function teardown(data) {
-    if (obj_registry) {
-        obj_registry.close();
-    }
+  if (obj_registry) {
+    obj_registry.close();
+  }
+  const end_timestamp = Date.now()
+  console.log(
+      `Load finished at:              ${Date(end_timestamp).toString()}`)
 }
 
 export function handleSummary(data) {
-    return {
-        'stdout': textSummary(data, { indent: ' ', enableColors: false }),
-        [summary_json]: JSON.stringify(data),
-    };
+  return {
+    'stdout': textSummary(data, {indent: ' ', enableColors: false}),
+    [summary_json]: JSON.stringify(data),
+  };
 }
 
 export function obj_write() {
-    if (__ENV.SLEEP_WRITE) {
-        sleep(__ENV.SLEEP_WRITE);
-    }
+  if (__ENV.SLEEP_WRITE) {
+    sleep(__ENV.SLEEP_WRITE);
+  }
 
-    const container = container_list[Math.floor(Math.random() * container_list.length)];
+  const container =
+      container_list[Math.floor(Math.random() * container_list.length)];
 
-    const { payload, hash } = generator.genPayload(registry_enabled);
-    const data = {
-        field: uuidv4(),
-        file: http.file(payload, "random.data"),
-    };
+  const payload = generator.genPayload();
+  const data = {
+    field: uuidv4(),
+    // Because we use `file` wrapping and it is not straightforward to use
+    // streams here,
+    // `-e STREAMING=1` has no effect for this scenario.
+    file: http.file(payload.bytes(), 'random.data'),
+  };
 
-    const resp = http.post(`http://${http_endpoint}/upload/${container}`, data);
-    if (resp.status != 200) {
-        log.withFields({status: resp.status, cid: container}).error(resp.error);
-        return;
-    }
-    const object_id = JSON.parse(resp.body).object_id;
-    if (obj_registry) {
-        obj_registry.addObject(container, object_id, "", "", hash);
-    }
+  const resp = http.post(`http://${http_endpoint}/upload/${container}`, data);
+  if (resp.status != 200) {
+    log.withFields({status: resp.status, cid: container}).error(resp.error);
+    return;
+  }
+  const object_id = JSON.parse(resp.body).object_id;
+  if (obj_registry) {
+    obj_registry.addObject(container, object_id, '', '', payload.hash());
+  }
 }
 
 export function obj_read() {
-    if (__ENV.SLEEP_READ) {
-        sleep(__ENV.SLEEP_READ);
-    }
+  if (__ENV.SLEEP_READ) {
+    sleep(__ENV.SLEEP_READ);
+  }
 
-    const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
-    const resp = http.get(`http://${http_endpoint}/get/${obj.container}/${obj.object}`);
-    if (resp.status != 200) {
-        log.withFields({status: resp.status, cid: obj.container, oid: obj.object}).error(resp.error);
-    }
+  const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
+  const resp =
+      http.get(`http://${http_endpoint}/get/${obj.container}/${obj.object}`);
+  if (resp.status != 200) {
+    log.withFields({status: resp.status, cid: obj.container, oid: obj.object})
+        .error(resp.error);
+  }
 }

scenarios/libs/datagen.js

@@ -0,0 +1,8 @@
+import datagen from 'k6/x/frostfs/datagen';
+
+export function newGenerator(condition) {
+	if (condition) {
+		return datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE), __ENV.PAYLOAD_TYPE || "", !!__ENV.STREAMING);
+	}
+	return undefined;
+}

scenarios/local.js

@@ -1,158 +1,177 @@
-import datagen from 'k6/x/frostfs/datagen';
+import {SharedArray} from 'k6/data';
+import exec from 'k6/execution';
 import local from 'k6/x/frostfs/local';
 import logging from 'k6/x/frostfs/logging';
 import registry from 'k6/x/frostfs/registry';
-import { SharedArray } from 'k6/data';
-import { textSummary } from './libs/k6-summary-0.0.2.js';
-import { parseEnv } from './libs/env-parser.js';
-import { uuidv4 } from './libs/k6-utils-1.4.0.js';
+import stats from 'k6/x/frostfs/stats';
+
+import {newGenerator} from './libs/datagen.js';
+import {parseEnv} from './libs/env-parser.js';
+import {textSummary} from './libs/k6-summary-0.0.2.js';
+import {uuidv4} from './libs/k6-utils-1.4.0.js';
 
 parseEnv();
 
-const obj_list = new SharedArray('obj_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
+const obj_list = new SharedArray('obj_list', function() {
+  return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
 });
 
-const container_list = new SharedArray('container_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).containers;
+const container_list = new SharedArray('container_list', function() {
+  return JSON.parse(open(__ENV.PREGEN_JSON)).containers;
 });
 
 const read_size = JSON.parse(open(__ENV.PREGEN_JSON)).obj_size;
-const summary_json = __ENV.SUMMARY_JSON || "/tmp/summary.json";
+const summary_json = __ENV.SUMMARY_JSON || '/tmp/summary.json';
 
 const config_file = __ENV.CONFIG_FILE;
+const config_dir = __ENV.CONFIG_DIR;
 const debug_logger = (__ENV.DEBUG_LOGGER || 'false') == 'true';
-const local_client = local.connect(config_file, '', debug_logger);
-const log = logging.new().withField("config", config_file);
+const max_total_size_gb =
+    __ENV.MAX_TOTAL_SIZE_GB ? parseInt(__ENV.MAX_TOTAL_SIZE_GB) : 0;
+const local_client =
+    local.connect(config_file, config_dir, '', debug_logger, max_total_size_gb);
+const log = logging.new().withFields(
+    {'config_file': config_file, 'config_dir': config_dir});
 
 const registry_enabled = !!__ENV.REGISTRY_FILE;
-const obj_registry = registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
+const obj_registry =
+    registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
 
 const duration = __ENV.DURATION;
 
+if (!!__ENV.METRIC_TAGS) {
+  stats.setTags(__ENV.METRIC_TAGS)
+}
+
 const delete_age = __ENV.DELETE_AGE ? parseInt(__ENV.DELETE_AGE) : undefined;
 let obj_to_delete_selector = undefined;
 if (registry_enabled && delete_age) {
-    obj_to_delete_selector = registry.getSelector(
-        __ENV.REGISTRY_FILE,
-        "obj_to_delete",
-        __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0,
-        {
-            status: "created",
-            age: delete_age,
-        }
-    );
+  obj_to_delete_selector = registry.getSelector(
+      __ENV.REGISTRY_FILE, 'obj_to_delete',
+      __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+        status: 'created',
+        age: delete_age,
+      });
 }
 
-const generator = datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE));
-
 const scenarios = {};
 
 const write_vu_count = parseInt(__ENV.WRITERS || '0');
+const generator = newGenerator(write_vu_count > 0);
 if (write_vu_count > 0) {
-    scenarios.write = {
-        executor: 'constant-vus',
-        vus: write_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_write', 
-        gracefulStop: '5s',
-    };
+  scenarios.write = {
+    executor: 'constant-vus',
+    vus: write_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_write',
+    gracefulStop: '5s',
+  };
 }
 
 const read_vu_count = parseInt(__ENV.READERS || '0');
 if (read_vu_count > 0) {
-    scenarios.read = {
-        executor: 'constant-vus',
-        vus: read_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_read', 
-        gracefulStop: '5s',
-    };
+  scenarios.read = {
+    executor: 'constant-vus',
+    vus: read_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_read',
+    gracefulStop: '5s',
+  };
 }
 
 const delete_vu_count = parseInt(__ENV.DELETERS || '0');
 if (delete_vu_count > 0) {
-    if (!obj_to_delete_selector) {
-        throw new Error('Positive DELETE worker number without a proper object selector');
-    }
+  if (!obj_to_delete_selector) {
+    throw new Error(
+        'Positive DELETE worker number without a proper object selector');
+  }
 
-    scenarios.delete = {
-        executor: 'constant-vus',
-        vus: delete_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_delete', 
-        gracefulStop: '5s',
-    };
+  scenarios.delete = {
+    executor: 'constant-vus',
+    vus: delete_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_delete',
+    gracefulStop: '5s',
+  };
 }
 
 export const options = {
-    scenarios,
-    setupTimeout: '5s',
+  scenarios,
+  setupTimeout: '5s',
 };
 
 export function setup() {
-    const total_vu_count = write_vu_count + read_vu_count + delete_vu_count;
+  const total_vu_count = write_vu_count + read_vu_count + delete_vu_count;
 
-    console.log(`Pregenerated containers:       ${container_list.length}`);
-    console.log(`Pregenerated read object size: ${read_size}`);
-    console.log(`Pregenerated total objects:    ${obj_list.length}`);
-    console.log(`Reading VUs:                   ${read_vu_count}`);
-    console.log(`Writing VUs:                   ${write_vu_count}`);
-    console.log(`Deleting VUs:                  ${delete_vu_count}`);
-    console.log(`Total VUs:                     ${total_vu_count}`);
+  console.log(`Pregenerated containers:       ${container_list.length}`);
+  console.log(`Pregenerated read object size: ${read_size}`);
+  console.log(`Pregenerated total objects:    ${obj_list.length}`);
+  console.log(`Reading VUs:                   ${read_vu_count}`);
+  console.log(`Writing VUs:                   ${write_vu_count}`);
+  console.log(`Deleting VUs:                  ${delete_vu_count}`);
+  console.log(`Total VUs:                     ${total_vu_count}`);
+
+  const start_timestamp = Date.now()
+  console.log(
+      `Load started at:               ${Date(start_timestamp).toString()}`)
 }
 
 export function teardown(data) {
-    if (obj_registry) {
-        obj_registry.close();
-    }
+  if (obj_registry) {
+    obj_registry.close();
+  }
+  const end_timestamp = Date.now()
+  console.log(
+      `Load finished at:              ${Date(end_timestamp).toString()}`)
 }
 
 export function handleSummary(data) {
-    return {
-        'stdout': textSummary(data, { indent: ' ', enableColors: false }),
-        [summary_json]: JSON.stringify(data),
-    };
+  return {
+    'stdout': textSummary(data, {indent: ' ', enableColors: false}),
+    [summary_json]: JSON.stringify(data),
+  };
 }
 
 export function obj_write() {
-    const headers = {
-        unique_header: uuidv4()
-    };
-    const container = container_list[Math.floor(Math.random() * container_list.length)];
+  const headers = {unique_header: uuidv4()};
+  const container =
+      container_list[Math.floor(Math.random() * container_list.length)];
 
-    const { payload, hash } = generator.genPayload(registry_enabled);
-    const resp = local_client.put(container, headers, payload);
-    if (!resp.success) {
-        log.withField("cid", container).error(resp.error);
-        return;
+  const payload = generator.genPayload();
+  const resp = local_client.put(container, headers, payload);
+  if (!resp.success) {
+    if (resp.abort) {
+      exec.test.abort(resp.error);
     }
+    log.withField('cid', container).error(resp.error);
+    return;
+  }
 
-    if (obj_registry) {
-        obj_registry.addObject(container, resp.object_id, "", "", hash);
-    }
+  if (obj_registry) {
+    obj_registry.addObject(container, resp.object_id, '', '', payload.hash());
+  }
 }
 
 export function obj_read() {
-    const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
-    const resp = local_client.get(obj.container, obj.object)
-    if (!resp.success) {
-        log.withFields({cid: obj.container, oid: obj.object}).error(resp.error);
-    }
+  const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
+  const resp = local_client.get(obj.container, obj.object)
+  if (!resp.success) {
+    log.withFields({cid: obj.container, oid: obj.object}).error(resp.error);
+  }
 }
 
 export function obj_delete() {
-    const obj = obj_to_delete_selector.nextObject();
-    if (!obj) {
-        return;
-    }
+  const obj = obj_to_delete_selector.nextObject();
+  if (!obj) {
+    return;
+  }
 
-    const resp = local_client.delete(obj.c_id, obj.o_id);
-    if (!resp.success) {
-        // Log errors except (2052 - object already deleted)
-        log.withFields({cid: obj.c_id, oid: obj.o_id}).error(resp.error);
-        return;
-    }
+  const resp = local_client.delete(obj.c_id, obj.o_id);
+  if (!resp.success) {
+    // Log errors except (2052 - object already deleted)
+    log.withFields({cid: obj.c_id, oid: obj.o_id}).error(resp.error);
+    return;
+  }
 
-    obj_registry.deleteObject(obj.id);
+  obj_registry.deleteObject(obj.id);
 }

scenarios/preset/helpers/aws_cli.py

@@ -1,45 +1,53 @@
 import uuid
 
-from helpers.cmd import execute_cmd
+from helpers.cmd import execute_cmd, log
 
 
-def create_bucket(endpoint, versioning, location):
+def create_bucket(endpoint, versioning, location, acl, no_verify_ssl):
     if location:
         location = f"--create-bucket-configuration 'LocationConstraint={location}'"
+    if acl:
+        acl = f"--acl {acl}"
+
     bucket_name = str(uuid.uuid4())
+    no_verify_ssl_str = "--no-verify-ssl" if no_verify_ssl else ""
+    cmd_line = f"aws {no_verify_ssl_str} s3api create-bucket --bucket {bucket_name} " \
+               f"--endpoint {endpoint} {location} {acl} "
+    cmd_line_ver = f"aws {no_verify_ssl_str} s3api put-bucket-versioning --bucket {bucket_name} " \
+                   f"--versioning-configuration Status=Enabled --endpoint {endpoint} {acl} "
 
-    cmd_line = f"aws --no-verify-ssl s3api create-bucket --bucket {bucket_name} " \
-               f"--endpoint http://{endpoint} {location}"
-    cmd_line_ver = f"aws --no-verify-ssl s3api put-bucket-versioning --bucket {bucket_name} " \
-                   f"--versioning-configuration Status=Enabled --endpoint http://{endpoint} "
+    output, success = execute_cmd(cmd_line)
 
-    out, success = execute_cmd(cmd_line)
-
-    if not success and "succeeded and you already own it" not in out:
-        print(f" > Bucket {bucket_name} has not been created:\n{out}")
+    if not success and "succeeded and you already own it" not in output:
+        log(f"{cmd_line}\n"
+            f"Bucket {bucket_name} has not been created:\n"
+            f"Error: {output}", endpoint)
         return False
-    
-    print(f"cmd: {cmd_line}")
 
     if versioning == "True":
-        out, success = execute_cmd(cmd_line_ver)
+        output, success = execute_cmd(cmd_line_ver)
         if not success:
-            print(f" > Bucket versioning has not been applied for bucket {bucket_name}:\n{out}")
+            log(f"{cmd_line_ver}\n"
+                f"Bucket versioning has not been applied for bucket {bucket_name}\n"
+                f"Error: {output}", endpoint)
         else:
-            print(f" > Bucket versioning has been applied.")
-
+            log(f"Bucket versioning has been applied for bucket {bucket_name}", endpoint)
+    
+    log(f"Created bucket: {bucket_name}", endpoint)
     return bucket_name
 
 
-def upload_object(bucket, payload_filepath, endpoint):
+def upload_object(bucket, payload_filepath, endpoint, no_verify_ssl):
     object_name = str(uuid.uuid4())
-
-    cmd_line = f"aws --no-verify-ssl s3api put-object --bucket {bucket} --key {object_name} " \
-               f"--body {payload_filepath} --endpoint http://{endpoint}"
-    out, success = execute_cmd(cmd_line)
+    no_verify_ssl_str = "--no-verify-ssl" if no_verify_ssl else ""
+    cmd_line = f"aws {no_verify_ssl_str} s3api put-object --bucket {bucket} --key {object_name} " \
+               f"--body {payload_filepath} --endpoint {endpoint}"
+    output, success = execute_cmd(cmd_line)
 
     if not success:
-        print(f" > Object {object_name} has not been uploaded.")
+        log(f"{cmd_line}\n"
+            f"Object {object_name} has not been uploaded\n"
+            f"Error: {output}", endpoint)
         return False
-    else:
-        return object_name
+    
+    return bucket, endpoint, object_name

scenarios/preset/helpers/cmd.py

@@ -1,9 +1,12 @@
 import os
 import shlex
 import sys
-
+from datetime import datetime
 from subprocess import check_output, CalledProcessError, STDOUT
 
+def log(message, endpoint):
+    time = datetime.utcnow()
+    print(f"{time} at {endpoint}: {message}")
 
 def execute_cmd(cmd_line):
     cmd_args = shlex.split(cmd_line)

scenarios/preset/helpers/frostfs_cli.py

@@ -1,81 +1,163 @@
 import re
+from helpers.cmd import execute_cmd, log
 
-from helpers.cmd import execute_cmd
+def create_container(endpoint, policy, wallet_path, config, acl, local=False, depth=0):
+    if depth > 20:
+        raise ValueError(f"unable to create container: too many unsuccessful attempts")
 
-
-def create_container(endpoint, policy, wallet_file, wallet_config):
-    cmd_line = f"frostfs-cli --rpc-endpoint {endpoint} container create --wallet {wallet_file} --config {wallet_config} " \
-               f" --policy '{policy}' --basic-acl public-read-write --await"
+    if wallet_path:
+        wallet_file = f"--wallet {wallet_path}"
+    if config:
+        wallet_config = f"--config {config}"
+    if acl:
+        acl_param = f"--basic-acl {acl}"
+    cmd_line = f"frostfs-cli --rpc-endpoint {endpoint} container create {wallet_file} {wallet_config} " \
+               f" --policy '{policy}' {acl_param} --await"
 
     output, success = execute_cmd(cmd_line)
 
     if not success:
-        print(f" > Container has not been created:\n{output}")
+        log(f"{cmd_line}\n"
+            f"Container has not been created\n"
+            f"{output}", endpoint)
         return False
-    else:
+    
+    try:
+        fst_str = output.split('\n')[0]
+    except Exception:
+        log(f"{cmd_line}\n"
+            f"Incorrect output\n"
+            f"Output: {output or '<empty>'}", endpoint)
+        return False
+    splitted = fst_str.split(": ")
+    if len(splitted) != 2:
+        raise ValueError(f"no CID was parsed from command output:\t{fst_str}")
+    cid = splitted[1]
+
+    log(f"Created container {cid}", endpoint)
+
+    if not local:
+        return cid
+    
+    cmd_line = f"frostfs-cli netmap nodeinfo --rpc-endpoint {endpoint} {wallet_file} {wallet_config}"
+    output, success = execute_cmd(cmd_line)
+
+    if not success:
+        log(f"{cmd_line}\n"
+            f"Failed to get nodeinfo\n"
+            f"{output}", endpoint)
+        return False
+    
+    try:
+        fst_str = output.split('\n')[0]
+    except Exception:
+        log(f"{cmd_line}\n"
+            f"Incorrect output\n"
+            f"Output: {output or '<empty>'}", endpoint)
+        return False
+    splitted = fst_str.split(": ")
+    if len(splitted) != 2 or len(splitted[1]) == 0:
+        raise ValueError(f"no node key was parsed from command output:\t{fst_str}")
+    
+    node_key = splitted[1]
+
+    cmd_line = f"frostfs-cli container nodes --rpc-endpoint {endpoint} {wallet_file} {wallet_config} --cid {cid}"
+    output, success = execute_cmd(cmd_line)
+
+    if not success:
+        log(f"{cmd_line}\n"
+            f"Failed to get container nodes\n"
+            f"{output}", endpoint)
+        return False
+
+    for output_str in output.split('\n'):
+        output_str = output_str.lstrip().rstrip()
+        if not output_str.startswith("Node "):
+            continue
+        splitted = output_str.split(": ")
+        if len(splitted) != 2 or len(splitted[1]) == 0:
+            continue
         try:
-            fst_str = output.split('\n')[0]
+            k = splitted[1].split(" ")[0]
         except Exception:
-            print(f"Got empty output: {output}")
-            return False
-        splitted = fst_str.split(": ")
-        if len(splitted) != 2:
-            raise ValueError(f"no CID was parsed from command output: \t{fst_str}")
-
-        print(f"Created container: {splitted[1]}")
-
-        return splitted[1]
+            log(f"{cmd_line}\n"
+                f"Incorrect output\n"
+                f"Output: {output or '<empty>'}", endpoint)
+            continue
+        if k == node_key:
+            return cid
+    
+    log(f"Created container {cid} is not stored on {endpoint}, creating another one...", endpoint)
+    return create_container(endpoint, policy, wallet_path, config, acl, local, depth + 1)
 
 
 def upload_object(container, payload_filepath, endpoint, wallet_file, wallet_config):
     object_name = ""
-    cmd_line = f"frostfs-cli --rpc-endpoint {endpoint} object put --file {payload_filepath} --wallet {wallet_file} --config {wallet_config} " \
+    if wallet_file:
+        wallet_file = "--wallet " + wallet_file
+    if wallet_config:
+        wallet_config = "--config " + wallet_config
+    cmd_line = f"frostfs-cli --rpc-endpoint {endpoint} object put --file {payload_filepath} {wallet_file} {wallet_config} " \
                f"--cid {container} --no-progress"
     output, success = execute_cmd(cmd_line)
 
     if not success:
-        print(f" > Object {object_name} has not been uploaded:\n{output}")
+        log(f"{cmd_line}\n"
+            f"Object {object_name} has not been uploaded\n"
+            f"Error: {output}", endpoint)
         return False
-    else:
-        try:
-            # taking second string from command output
-            snd_str = output.split('\n')[1]
-        except Exception:
-            print(f"Got empty input: {output}")
-            return False
-        splitted = snd_str.split(": ")
-        if len(splitted) != 2:
-            raise Exception(f"no OID was parsed from command output: \t{snd_str}")
-        return splitted[1]
+
+    try:
+        # taking second string from command output
+        snd_str = output.split('\n')[1]
+    except Exception:
+        log(f"{cmd_line}\n"
+            f"Incorrect output\n"
+            f"Output: {output or '<empty>'}", endpoint)
+        return False
+    splitted = snd_str.split(": ")
+    if len(splitted) != 2:
+        raise Exception(f"no OID was parsed from command output: \t{snd_str}")
+    return container, endpoint, splitted[1]
 
 
 def get_object(cid, oid, endpoint, out_filepath, wallet_file, wallet_config):
-    cmd_line = f"frostfs-cli object get -r {endpoint} --cid {cid} --oid {oid} --wallet {wallet_file} --config {wallet_config} " \
+    if wallet_file:
+        wallet_file = "--wallet " + wallet_file
+    if wallet_config:
+        wallet_config = "--config " + wallet_config
+    cmd_line = f"frostfs-cli object get -r {endpoint} --cid {cid} --oid {oid} {wallet_file} {wallet_config} " \
                f"--file {out_filepath}"
 
     output, success = execute_cmd(cmd_line)
 
     if not success:
-        print(f" > Failed to get object {output} from container {cid} \r\n"
-              f" > Error: {output}")
+        log(f"{cmd_line}\n"
+            f"Failed to get object {oid} from container {cid}\n"
+            f"Error: {output}", endpoint)
         return False
 
     return True
 
 
 def search_object_by_id(cid, oid, endpoint, wallet_file, wallet_config, ttl=2):
-    cmd_line = f"frostfs-cli object search --ttl {ttl} -r {endpoint} --cid {cid} --oid {oid} --wallet {wallet_file} --config {wallet_config} "
+    if wallet_file:
+        wallet_file = "--wallet " + wallet_file
+    if wallet_config:
+        wallet_config = "--config " + wallet_config
+    cmd_line = f"frostfs-cli object search --ttl {ttl} -r {endpoint} --cid {cid} --oid {oid} {wallet_file} {wallet_config} "
 
     output, success = execute_cmd(cmd_line)
 
     if not success:
-        print(f" > Failed to search object {oid} for container {cid} \r\n"
-              f" > Error: {output}")
+        log(f"{cmd_line}\n"
+            f"Failed to search object {oid} for container {cid}\n"
+            f"Error: {output}", endpoint)
         return False
 
     re_rst = re.search(r'Found (\d+) objects', output)
 
     if not re_rst:
-        raise Exception("Failed to parce search results")
+        raise Exception("Failed to parse search results")
 
     return re_rst.group(1)

scenarios/preset/preset_grpc.py

@@ -1,14 +1,14 @@
 #!/usr/bin/python3
 
 import argparse
+from itertools import cycle
 import json
-import random
 import sys
 import tempfile
+import time
 
 from argparse import Namespace
 from concurrent.futures import ProcessPoolExecutor
-
 from helpers.cmd import random_payload
 from helpers.frostfs_cli import create_container, upload_object
 
@@ -28,17 +28,21 @@ parser.add_argument(
     help="Container placement policy",
     default="REP 2 IN X CBF 2 SELECT 2 FROM * AS X"
 )
-parser.add_argument('--endpoint', help='Node address')
+parser.add_argument('--endpoint', help='Nodes addresses separated by comma.')
 parser.add_argument('--update', help='Save existed containers')
-parser.add_argument('--ignore-errors', help='Ignore preset errors')
+parser.add_argument('--ignore-errors', help='Ignore preset errors', action='store_true')
 parser.add_argument('--workers', help='Count of workers in preset. Max = 50, Default = 50', default=50)
+parser.add_argument('--sleep', help='Time to sleep between containers creation and objects upload (in seconds), '
+                                    'Default = 8', default=8)
+parser.add_argument('--local', help='Create containers that store data on provided endpoints. Warning: additional empty containers may be created.', action='store_true')
+parser.add_argument('--acl', help='Container ACL. Default is public-read-write.', default='public-read-write')
 
 args: Namespace = parser.parse_args()
 print(args)
 
 
 def main():
-    container_list = []
+    containers = []
     objects_list = []
 
     endpoints = args.endpoint.split(',')
@@ -48,63 +52,73 @@ def main():
     workers = int(args.workers)
     objects_per_container = int(args.preload_obj)
     
-    ignore_errors = True if args.ignore_errors else False
+    ignore_errors = args.ignore_errors
     if args.update:
         # Open file
         with open(args.out) as f:
             data_json = json.load(f)
-            container_list = data_json['containers']
-            containers_count = len(container_list)
+            containers = data_json['containers']
+            containers_count = len(containers)
     else:
         containers_count = int(args.containers)
         print(f"Create containers: {containers_count}")
         with ProcessPoolExecutor(max_workers=min(MAX_WORKERS, workers)) as executor:
-            containers_runs = {executor.submit(create_container, endpoints[random.randrange(len(endpoints))],
-                                               args.policy, wallet, wallet_config): _ for _ in range(containers_count)}
+            containers_runs = [executor.submit(create_container, endpoint, args.policy, wallet, wallet_config, args.acl, args.local)
+                               for _, endpoint in 
+                               zip(range(containers_count), cycle(endpoints))]
 
         for run in containers_runs:
-            if run.result():
-                container_list.append(run.result())
+            container_id = run.result()
+            if container_id:
+                containers.append(container_id)
 
         print("Create containers: Completed")
 
-    print(f" > Containers: {container_list}")
-    if containers_count == 0 or len(container_list) != containers_count:
-        print(f"Containers mismatch in preset: expected {containers_count}, created {len(container_list)}")
+    print(f" > Containers: {containers}")
+    if containers_count > 0 and len(containers) != containers_count:
+        print(f"Containers mismatch in preset: expected {containers_count}, created {len(containers)}")
         if not ignore_errors:
             sys.exit(ERROR_WRONG_CONTAINERS_COUNT)
 
+    if args.sleep != 0:
+        print(f"Sleep for {args.sleep} seconds")
+        time.sleep(args.sleep)
+
     print(f"Upload objects to each container: {args.preload_obj} ")
     payload_file = tempfile.NamedTemporaryFile()
     random_payload(payload_file, args.size)
     print(" > Create random payload: Completed")
 
-    for container in container_list:
-        print(f" > Upload objects for container {container}")
-        with ProcessPoolExecutor(max_workers=min(MAX_WORKERS, workers)) as executor:
-            objects_runs = {executor.submit(upload_object, container, payload_file.name,
-                            endpoints[random.randrange(len(endpoints))], wallet, wallet_config): _ for _ in range(objects_per_container)}
-
-        for run in objects_runs:
-            if run.result():
-                objects_list.append({'container': container, 'object': run.result()})
-        print(f" > Upload objects for container {container}: Completed")
+    total_objects = objects_per_container * containers_count
+    with ProcessPoolExecutor(max_workers=min(MAX_WORKERS, workers)) as executor:
+        objects_runs = [executor.submit(upload_object, container, payload_file.name, 
+                                        endpoint, wallet, wallet_config)
+                        for _, container, endpoint in 
+                        zip(range(total_objects), cycle(containers), cycle(endpoints))]
+                        
+    for run in objects_runs:
+        result = run.result()
+        if result:
+            container_id = result[0]
+            endpoint = result[1]
+            object_id = result[2]
+            objects_list.append({'container': container_id, 'object': object_id})
+            print(f" > Uploaded object {object_id} for container {container_id} via endpoint {endpoint}.")
 
     print("Upload objects to each container: Completed")
 
-    total_objects = objects_per_container * containers_count
     if total_objects > 0 and len(objects_list) != total_objects:
         print(f"Objects mismatch in preset: expected {total_objects}, created {len(objects_list)}")
         if not ignore_errors:
             sys.exit(ERROR_WRONG_OBJECTS_COUNT)
 
-    data = {'containers': container_list, 'objects': objects_list, 'obj_size': args.size + " Kb"}
+    data = {'containers': containers, 'objects': objects_list, 'obj_size': args.size + " Kb"}
 
     with open(args.out, 'w+') as f:
         json.dump(data, f, ensure_ascii=False, indent=2)
 
     print("Result:")
-    print(f" > Total Containers has been created: {len(container_list)}.")
+    print(f" > Total Containers has been created: {len(containers)}.")
     print(f" > Total Objects has been created: {len(objects_list)}.")
 
 

scenarios/preset/preset_s3.py

@@ -1,9 +1,11 @@
 #!/usr/bin/python3
 
 import argparse
+from itertools import cycle
 import json
 import sys
 import tempfile
+import time
 from concurrent.futures import ProcessPoolExecutor
 
 from helpers.cmd import random_payload
@@ -15,13 +17,17 @@ parser.add_argument('--size', help='Upload objects size in kb.')
 parser.add_argument('--buckets', help='Number of buckets to create.')
 parser.add_argument('--out', help='JSON file with output.')
 parser.add_argument('--preload_obj', help='Number of pre-loaded objects.')
-parser.add_argument('--endpoint', help='S3 Gateway address.')
+parser.add_argument('--endpoint', help='S3 Gateways addresses separated by comma.')
 parser.add_argument('--update', help='True/False, False by default. Save existed buckets from target file (--out). '
                                      'New buckets will not be created.')
 parser.add_argument('--location', help='AWS location. Will be empty, if has not be declared.', default="")
 parser.add_argument('--versioning', help='True/False, False by default.')
-parser.add_argument('--ignore-errors', help='Ignore preset errors')
+parser.add_argument('--ignore-errors', help='Ignore preset errors', action='store_true')
+parser.add_argument('--no-verify-ssl', help='Ignore SSL verifications', action='store_true')
 parser.add_argument('--workers', help='Count of workers in preset. Max = 50, Default = 50', default=50)
+parser.add_argument('--sleep', help='Time to sleep between buckets creation and objects upload (in seconds), '
+                                    'Default = 8', default=8)
+parser.add_argument('--acl', help='Bucket ACL. Default is private. Expected values are: private, public-read or public-read-write.', default="private")
 
 args = parser.parse_args()
 print(args)
@@ -31,9 +37,12 @@ ERROR_WRONG_OBJECTS_COUNT = 2
 MAX_WORKERS = 50
 
 def main():
-    bucket_list = []
+    buckets = []
     objects_list = []
-    ignore_errors = True if args.ignore_errors else False
+    ignore_errors = args.ignore_errors
+    no_verify_ssl = args.no_verify_ssl
+
+    endpoints = args.endpoint.split(',')
 
     workers = int(args.workers)
     objects_per_bucket = int(args.preload_obj)
@@ -42,60 +51,68 @@ def main():
         # Open file
         with open(args.out) as f:
             data_json = json.load(f)
-            bucket_list = data_json['buckets']
-            buckets_count = len(bucket_list)
+            buckets = data_json['buckets']
+            buckets_count = len(buckets)
         # Get CID list
     else:
         buckets_count = int(args.buckets)
         print(f"Create buckets: {buckets_count}")
 
         with ProcessPoolExecutor(max_workers=min(MAX_WORKERS, workers)) as executor:
-            buckets_runs = {executor.submit(create_bucket, args.endpoint, args.versioning,
-                                            args.location): _ for _ in range(buckets_count)}
+            buckets_runs = [executor.submit(create_bucket, endpoint, args.versioning, args.location, args.acl, no_verify_ssl) 
+                            for _, endpoint in 
+                            zip(range(buckets_count), cycle(endpoints))]
 
         for run in buckets_runs:
-            if run.result():
-                bucket_list.append(run.result())
+            bucket_name = run.result()
+            if bucket_name:
+                buckets.append(bucket_name)
 
         print("Create buckets: Completed")
 
-    print(f" > Buckets: {bucket_list}")
-    if buckets_count == 0 or len(bucket_list) != buckets_count:
-        print(f"Buckets mismatch in preset: expected {buckets_count}, created {len(bucket_list)}")
+    print(f" > Buckets: {buckets}")
+    if buckets_count > 0 and len(buckets) != buckets_count:
+        print(f"Buckets mismatch in preset: expected {buckets_count}, created {len(buckets)}")
         if not ignore_errors:
             sys.exit(ERROR_WRONG_CONTAINERS_COUNT)
 
+    if args.sleep != 0:
+        print(f"Sleep for {args.sleep} seconds")
+        time.sleep(args.sleep)
+
     print(f"Upload objects to each bucket: {objects_per_bucket} ")
     payload_file = tempfile.NamedTemporaryFile()
     random_payload(payload_file, args.size)
     print(" > Create random payload: Completed")
 
-    for bucket in bucket_list:
-        print(f" > Upload objects for bucket {bucket}")
-        with ProcessPoolExecutor(max_workers=min(MAX_WORKERS, workers)) as executor:
-            objects_runs = {executor.submit(upload_object, bucket, payload_file.name,
-                                            args.endpoint): _ for _ in range(objects_per_bucket)}
-
-        for run in objects_runs:
-            if run.result():
-                objects_list.append({'bucket': bucket, 'object': run.result()})
-        print(f" > Upload objects for bucket {bucket}: Completed")
-
-    print("Upload objects to each bucket: Completed")
-
     total_objects = objects_per_bucket * buckets_count
+
+    with ProcessPoolExecutor(max_workers=min(MAX_WORKERS, workers)) as executor:
+        objects_runs = [executor.submit(upload_object, bucket, payload_file.name, endpoint, no_verify_ssl)
+                        for _, bucket, endpoint in 
+                        zip(range(total_objects), cycle(buckets), cycle(endpoints))]
+                        
+    for run in objects_runs:
+        result = run.result()
+        if result:
+            bucket = result[0]
+            endpoint = result[1]
+            object_id = result[2]
+            objects_list.append({'bucket': bucket, 'object': object_id})
+            print(f" > Uploaded object {object_id} for bucket {bucket} via endpoint {endpoint}.")
+
     if total_objects > 0 and len(objects_list) != total_objects:
         print(f"Objects mismatch in preset: expected {total_objects}, created {len(objects_list)}")
         if not ignore_errors:
             sys.exit(ERROR_WRONG_OBJECTS_COUNT)
 
-    data = {'buckets': bucket_list, 'objects': objects_list, 'obj_size': args.size + " Kb"}
+    data = {'buckets': buckets, 'objects': objects_list, 'obj_size': args.size + " Kb"}
 
     with open(args.out, 'w+') as f:
         json.dump(data, f, ensure_ascii=False, indent=2)
 
     print("Result:")
-    print(f" > Total Buckets has been created: {len(bucket_list)}.")
+    print(f" > Total Buckets has been created: {len(buckets)}.")
     print(f" > Total Objects has been created: {len(objects_list)}.")
 
 

scenarios/preset/resolve_containers_in_preset.py

@@ -2,7 +2,8 @@
 
 import argparse
 import json
-import requests
+import http.client
+import ssl
 
 parser = argparse.ArgumentParser()
 parser.add_argument('--endpoint', help='Endpoint of the S3 gateway')
@@ -16,10 +17,13 @@ def main():
 
     preset = json.loads(preset_text)
 
+    conn = http.client.HTTPSConnection(args.endpoint, context = ssl._create_unverified_context())
     containers = []
     for bucket in preset.get('buckets'):
-        resp = requests.head(f'{args.endpoint}/{bucket}', verify=False)
-        containers.append(resp.headers['X-Container-Id'])
+        conn.request("HEAD", f'/{bucket}')
+        response = conn.getresponse()
+        containers.append(response.getheader('X-Container-Id'))
+        response.read()
 
     preset['containers'] = containers
     with open(args.preset_file, 'w+') as f:

scenarios/run_scenarios.md

@@ -19,6 +19,8 @@ Scenarios `grpc.js`, `local.js`, `http.js` and `s3.js` support the following opt
   * `SLEEP_READ` - time interval (in seconds) between reading VU iterations.
   * `SELECTION_SIZE` - size of batch to select for deletion (default: 1000).
   * `PAYLOAD_TYPE` - type of an object payload ("random" or "text", default: "random").
+  * `STREAMING` - if set, the payload is generated on the fly and is not read into memory fully.
+  * `METRIC_TAGS` - custom metrics tags (format `tag1:value1;tag2:value2`).
 
 Additionally, the profiling extension can be enabled to generate CPU and memory profiles which can be inspected with `go tool pprof file.prof`:
 ```shell
@@ -69,13 +71,15 @@ $ ./scenarios/preset/preset_grpc.py --size 1024 --containers 1 --out grpc.json -
 2. Execute scenario with options:
 
 ```shell
-$ ./k6 run -e DURATION=60 -e WRITE_OBJ_SIZE=8192 -e READERS=20 -e WRITERS=20 -e DELETERS=30 -e DELETE_AGE=10 -e REGISTRY_FILE=registry.bolt -e CONFIG_FILE=/path/to/config.yaml -e PREGEN_JSON=./grpc.json scenarios/local.js
+$ ./k6 run -e DURATION=60 -e WRITE_OBJ_SIZE=8192 -e READERS=20 -e WRITERS=20 -e DELETERS=30 -e DELETE_AGE=10 -e REGISTRY_FILE=registry.bolt -e CONFIG_FILE=/path/to/config.yaml -e CONFIG_DIR=/path/to/dir/ -e PREGEN_JSON=./grpc.json scenarios/local.js
 ```
 
 Options (in addition to the common options):
   * `CONFIG_FILE` - path to the local configuration file used for the storage node. Only the storage configuration section is used.
+  * `CONFIG_DIR` - path to the folder with local configuration files used for the storage node.
   * `DELETERS` - number of VUs performing delete operations (using deleters requires that options `DELETE_AGE` and `REGISTRY_FILE` are specified as well).
   * `DELETE_AGE` - age of object in seconds before which it can not be deleted. This parameter can be used to control how many objects we have in the system under load.
+  * `MAX_TOTAL_SIZE_GB` - if specified, max payload size in GB of the storage engine. If the storage engine is already full, no new objects will be saved.
 
 ## HTTP
 
@@ -135,6 +139,31 @@ Options (in addition to the common options):
   * `SLEEP_DELETE` - time interval (in seconds) between deleting VU iterations.
   * `OBJ_NAME` - if specified, this name will be used for all write operations instead of random generation.
 
+## S3 Multipart
+
+Perform multipart upload operation, break up large objects, so they can be transferred in multiple parts, in parallel
+
+```shell
+$ ./k6 run -e DURATION=600 \
+-e WRITERS=400 -e WRITERS_MULTIPART=10 \
+-e WRITE_OBJ_SIZE=524288 -e WRITE_OBJ_PART_SIZE=10240  \
+-e S3_ENDPOINTS=10.78.70.142:8084,10.78.70.143:8084,10.78.70.144:8084,10.78.70.145:8084 \
+-e PREGEN_JSON=/home/service/s3_4kb.json \
+scenarios/s3_multipart.js
+```
+
+Options:
+* `DURATION` - duration of scenario in seconds.
+* `REGISTRY_FILE` - if set, all produced objects will be stored in database for subsequent verification. Database file name will be set to the value of `REGISTRY_FILE`.
+* `PREGEN_JSON` - path to json file with pre-generated containers.
+* `SLEEP_WRITE` - time interval (in seconds) between writing VU iterations.
+* `PAYLOAD_TYPE` - type of an object payload ("random" or "text", default: "random").
+* `S3_ENDPOINTS` - - endpoints of S3 gateways in format `host:port`. To specify multiple endpoints separate them by comma.
+* `WRITERS` - number of VUs performing upload payload operation
+* `WRITERS_MULTIPART` - number of goroutines that will upload parts in parallel
+* `WRITE_OBJ_SIZE` - object size in kb for write(PUT) operations.
+* `WRITE_OBJ_PART_SIZE` - part size in kb for multipart upload operations (must be greater or equal 5mb).
+
 ## S3 Local
 
 1. Follow steps 1. and 2. from the normal S3 scenario in order to obtain credentials and a preset file with the information about the buckets and objects that were pre-created.
@@ -150,13 +179,50 @@ After this, the `pregen.json` file will contain a `containers` list field the sa
 
 3. Execute the scenario with the desired options. For example:
 ```shell
-$ ./k6 run -e DURATION=60 -e WRITE_OBJ_SIZE=8192 -e READERS=20 -e WRITERS=20 -e CONFIG_FILE=/path/to/node/config.yml -e PREGEN_JSON=pregen.json scenarios/s3local.js
+$ ./k6 run -e DURATION=60 -e WRITE_OBJ_SIZE=8192 -e READERS=20 -e WRITERS=20 -e CONFIG_FILE=/path/to/node/config.yml -e CONFIG_DIR=/path/to/dir/ -e PREGEN_JSON=pregen.json scenarios/s3local.js
 ```
 
 Note that the `s3local` scenario currently does not support deleters.
 
 Options (in addition to the common options):
   * `OBJ_NAME` - if specified, this name will be used for all write operations instead of random generation.
+  * `MAX_TOTAL_SIZE_GB` - if specified, max payload size in GB of the storage engine. If the storage engine is already full, no new objects will be saved.
+
+## Export metrics
+
+To export metrics to Prometheus (also Grafana and Victoria Metrics support Prometheus format), you need to run `k6` with an option `-o experimental-prometheus-rw` and
+an environment variable `K6_PROMETHEUS_RW_SERVER_URL` whose value corresponds to the URL for the remote write endpoint.
+To specify percentiles for trend metrics, use an environment variable `K6_PROMETHEUS_RW_TREND_STATS`.
+See [k6 docs](https://k6.io/docs/results-output/real-time/prometheus-remote-write/) for a list of all possible options.
+To distinct metrics from different loaders, use an option `METRIC_TAGS`. These tags does not apply to builtin `k6` metrics.
+
+Example:
+```bash
+K6_PROMETHEUS_RW_SERVER_URL=http://host:8428/api/v1/write \
+K6_PROMETHEUS_RW_TREND_STATS="p(95),p(99),min,max" \
+./k6 run ... -o experimental-prometheus-rw -e METRIC_TAGS="instance:server1;run:run1" scenario.js
+```
+
+## Grafana annotations
+
+There is no option to export Grafana annotaions, but it can be easily done with `curl` and Grafana's annotations API.
+Example:
+```shell
+curl --request POST \
+  --url https://user:password@grafana.host/api/annotations \
+  --header 'Content-Type: application/json' \
+  --data '{
+    "dashboardUID": "YsVWNpMIk",
+    "time": 1706533045014,
+    "timeEnd": 1706533085100,
+    "tags": [
+        "tag1",
+        "tag2"
+    ],
+    "text": "Test annotation"
+}'
+```
+See [Grafana docs](https://grafana.com/docs/grafana/latest/developers/http_api/annotations/) for details.
 
 ## Verify
 

scenarios/s3.js

@@ -1,170 +1,220 @@
-import datagen from 'k6/x/frostfs/datagen';
+import {sleep} from 'k6';
+import {SharedArray} from 'k6/data';
+import exec from 'k6/execution';
 import logging from 'k6/x/frostfs/logging';
 import registry from 'k6/x/frostfs/registry';
 import s3 from 'k6/x/frostfs/s3';
-import { SharedArray } from 'k6/data';
-import { sleep } from 'k6';
-import { textSummary } from './libs/k6-summary-0.0.2.js';
-import { parseEnv } from './libs/env-parser.js';
-import { uuidv4 } from './libs/k6-utils-1.4.0.js';
+import stats from 'k6/x/frostfs/stats';
+
+import {newGenerator} from './libs/datagen.js';
+import {parseEnv} from './libs/env-parser.js';
+import {textSummary} from './libs/k6-summary-0.0.2.js';
+import {uuidv4} from './libs/k6-utils-1.4.0.js';
 
 parseEnv();
 
-const obj_list = new SharedArray('obj_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
-});
+const obj_list = new SharedArray(
+    'obj_list',
+    function() { return JSON.parse(open(__ENV.PREGEN_JSON)).objects; });
 
-const bucket_list = new SharedArray('bucket_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).buckets;
-});
+const bucket_list = new SharedArray(
+    'bucket_list',
+    function() { return JSON.parse(open(__ENV.PREGEN_JSON)).buckets; });
 
 const read_size = JSON.parse(open(__ENV.PREGEN_JSON)).obj_size;
-const summary_json = __ENV.SUMMARY_JSON || "/tmp/summary.json";
+const summary_json = __ENV.SUMMARY_JSON || '/tmp/summary.json';
 
+const no_verify_ssl = __ENV.NO_VERIFY_SSL || 'true';
+const connection_args = {
+  no_verify_ssl : no_verify_ssl
+}
 // Select random S3 endpoint for current VU
 const s3_endpoints = __ENV.S3_ENDPOINTS.split(',');
-const s3_endpoint = s3_endpoints[Math.floor(Math.random() * s3_endpoints.length)];
-const s3_client = s3.connect(`http://${s3_endpoint}`);
-const log = logging.new().withField("endpoint", s3_endpoint);
+const s3_endpoint =
+    s3_endpoints[Math.floor(Math.random() * s3_endpoints.length)];
+const s3_client = s3.connect(s3_endpoint, connection_args);
+const log = logging.new().withField('endpoint', s3_endpoint);
 
 const registry_enabled = !!__ENV.REGISTRY_FILE;
-const obj_registry = registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
+const obj_registry =
+    registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
 
 const duration = __ENV.DURATION;
 
-const delete_age = __ENV.DELETE_AGE ? parseInt(__ENV.DELETE_AGE) : undefined;
-let obj_to_delete_selector = undefined;
-if (registry_enabled && delete_age) {
-    obj_to_delete_selector = registry.getSelector(
-        __ENV.REGISTRY_FILE,
-        "obj_to_delete",
-        __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0,
-        {
-            status: "created",
-            age: delete_age,
-        }
-    );
+if (!!__ENV.METRIC_TAGS) {
+  stats.setTags(__ENV.METRIC_TAGS)
 }
 
-const generator = datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE), __ENV.PAYLOAD_TYPE || "");
+const read_age = __ENV.READ_AGE ? parseInt(__ENV.READ_AGE) : 10;
+let obj_to_read_selector = undefined;
+if (registry_enabled) {
+  obj_to_read_selector = registry.getLoopedSelector(
+      __ENV.REGISTRY_FILE, 'obj_to_read',
+      __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+        status : 'created',
+        age : read_age,
+      })
+}
 
 const scenarios = {};
 
 const write_vu_count = parseInt(__ENV.WRITERS || '0');
+const generator = newGenerator(write_vu_count > 0);
 if (write_vu_count > 0) {
-    scenarios.write = {
-        executor: 'constant-vus',
-        vus: write_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_write', 
-        gracefulStop: '5s',
-    };
+  scenarios.write = {
+    executor : 'constant-vus',
+    vus : write_vu_count,
+    duration : `${duration}s`,
+    exec : 'obj_write',
+    gracefulStop : '5s',
+  };
+}
+
+const delete_age = __ENV.DELETE_AGE ? parseInt(__ENV.DELETE_AGE) : undefined;
+let obj_to_delete_selector = undefined;
+let obj_to_delete_exit_on_null = undefined;
+if (registry_enabled && delete_age) {
+  obj_to_delete_exit_on_null = write_vu_count == 0;
+
+  let constructor = obj_to_delete_exit_on_null ? registry.getOneshotSelector
+                                               : registry.getSelector;
+
+  obj_to_delete_selector =
+      constructor(__ENV.REGISTRY_FILE, 'obj_to_delete',
+                  __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+                    status : 'created',
+                    age : delete_age,
+                  });
 }
 
 const read_vu_count = parseInt(__ENV.READERS || '0');
 if (read_vu_count > 0) {
-    scenarios.read = {
-        executor: 'constant-vus',
-        vus: read_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_read', 
-        gracefulStop: '5s',
-    };
+  scenarios.read = {
+    executor : 'constant-vus',
+    vus : read_vu_count,
+    duration : `${duration}s`,
+    exec : 'obj_read',
+    gracefulStop : '5s',
+  };
 }
 
 const delete_vu_count = parseInt(__ENV.DELETERS || '0');
 if (delete_vu_count > 0) {
-    if (!obj_to_delete_selector) {
-        throw 'Positive DELETE worker number without a proper object selector';
-    }
+  if (!obj_to_delete_selector) {
+    throw 'Positive DELETE worker number without a proper object selector';
+  }
 
-    scenarios.delete = {
-        executor: 'constant-vus',
-        vus: delete_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_delete', 
-        gracefulStop: '5s',
-    };
+  scenarios.delete = {
+    executor : 'constant-vus',
+    vus : delete_vu_count,
+    duration : `${duration}s`,
+    exec : 'obj_delete',
+    gracefulStop : '5s',
+  };
 }
 
 export const options = {
-    scenarios,
-    setupTimeout: '5s',
+  scenarios,
+  setupTimeout : '5s',
 };
 
 export function setup() {
-    const total_vu_count = write_vu_count + read_vu_count + delete_vu_count;
+  const total_vu_count = write_vu_count + read_vu_count + delete_vu_count;
 
-    console.log(`Pregenerated buckets:          ${bucket_list.length}`);
-    console.log(`Pregenerated read object size: ${read_size}`);
-    console.log(`Pregenerated total objects:    ${obj_list.length}`);
-    console.log(`Reading VUs:                   ${read_vu_count}`);
-    console.log(`Writing VUs:                   ${write_vu_count}`);
-    console.log(`Deleting VUs:                  ${delete_vu_count}`);
-    console.log(`Total VUs:                     ${total_vu_count}`);
+  console.log(`Pregenerated buckets:          ${bucket_list.length}`);
+  console.log(`Pregenerated read object size: ${read_size}`);
+  console.log(`Pregenerated total objects:    ${obj_list.length}`);
+  console.log(`Reading VUs:                   ${read_vu_count}`);
+  console.log(`Writing VUs:                   ${write_vu_count}`);
+  console.log(`Deleting VUs:                  ${delete_vu_count}`);
+  console.log(`Total VUs:                     ${total_vu_count}`);
+
+  const start_timestamp = Date.now()
+  console.log(
+      `Load started at:               ${Date(start_timestamp).toString()}`)
 }
 
 export function teardown(data) {
-    if (obj_registry) {
-        obj_registry.close();
-    }
+  if (obj_registry) {
+    obj_registry.close();
+  }
+  const end_timestamp = Date.now()
+  console.log(
+      `Load finished at:              ${Date(end_timestamp).toString()}`)
 }
 
 export function handleSummary(data) {
-    return {
-        'stdout': textSummary(data, { indent: ' ', enableColors: false }),
-        [summary_json]: JSON.stringify(data),
-    };
-  }
+  return {
+    'stdout' : textSummary(data, {indent : ' ', enableColors : false}),
+    [summary_json] : JSON.stringify(data),
+  };
+}
 
 export function obj_write() {
-    if (__ENV.SLEEP_WRITE) {
-        sleep(__ENV.SLEEP_WRITE);
-    }
+  if (__ENV.SLEEP_WRITE) {
+    sleep(__ENV.SLEEP_WRITE);
+  }
 
-    const key = __ENV.OBJ_NAME || uuidv4();
-    const bucket = bucket_list[Math.floor(Math.random() * bucket_list.length)];
+  const key = __ENV.OBJ_NAME || uuidv4();
+  const bucket = bucket_list[Math.floor(Math.random() * bucket_list.length)];
 
-    const { payload, hash } = generator.genPayload(registry_enabled);
-    const resp = s3_client.put(bucket, key, payload);
-    if (!resp.success) {
-        log.withFields({bucket: bucket, key: key}).error(resp.error);
-        return;
-    }
+  const payload = generator.genPayload();
+  const resp = s3_client.put(bucket, key, payload);
+  if (!resp.success) {
+    log.withFields({bucket : bucket, key : key}).error(resp.error);
+    return;
+  }
 
-    if (obj_registry) {
-        obj_registry.addObject("", "", bucket, key, hash);
-    }
+  if (obj_registry) {
+    obj_registry.addObject('', '', bucket, key, payload.hash());
+  }
 }
 
 export function obj_read() {
-    if (__ENV.SLEEP_READ) {
-        sleep(__ENV.SLEEP_READ);
+  if (__ENV.SLEEP_READ) {
+    sleep(__ENV.SLEEP_READ);
+  }
+
+  if (obj_to_read_selector) {
+    const obj = obj_to_read_selector.nextObject();
+    if (!obj) {
+      return;
     }
-
-    const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
-
-    const resp = s3_client.get(obj.bucket, obj.object);
+    const resp = s3_client.get(obj.s3_bucket, obj.s3_key)
     if (!resp.success) {
-        log.withFields({bucket: obj.bucket, key: obj.object}).error(resp.error);
-    } 
+      log.withFields({bucket : obj.s3_bucket, key : obj.s3_key})
+          .error(resp.error);
+    }
+    return
+  }
+
+  const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
+
+  const resp = s3_client.get(obj.bucket, obj.object);
+  if (!resp.success) {
+    log.withFields({bucket : obj.bucket, key : obj.object}).error(resp.error);
+  }
 }
 
 export function obj_delete() {
-    if (__ENV.SLEEP_DELETE) {
-        sleep(__ENV.SLEEP_DELETE);
-    }
+  if (__ENV.SLEEP_DELETE) {
+    sleep(__ENV.SLEEP_DELETE);
+  }
 
-    const obj = obj_to_delete_selector.nextObject();
-    if (!obj) {
-        return;
+  const obj = obj_to_delete_selector.nextObject();
+  if (!obj) {
+    if (obj_to_delete_exit_on_null) {
+      exec.test.abort("No more objects to select");
     }
+    return;
+  }
 
-    const resp = s3_client.delete(obj.s3_bucket, obj.s3_key);
-    if (!resp.success) {
-        log.withFields({bucket: obj.s3_bucket, key: obj.s3_key, op: "DELETE"}).error(resp.error);
-        return;
-    }
+  const resp = s3_client.delete(obj.s3_bucket, obj.s3_key);
+  if (!resp.success) {
+    log.withFields({bucket : obj.s3_bucket, key : obj.s3_key, op : 'DELETE'})
+        .error(resp.error);
+    return;
+  }
 
-    obj_registry.deleteObject(obj.id);
+  obj_registry.deleteObject(obj.id);
 }

scenarios/s3_car.js

@@ -1,52 +1,70 @@
-import datagen from 'k6/x/frostfs/datagen';
+import {sleep} from 'k6';
+import {SharedArray} from 'k6/data';
 import logging from 'k6/x/frostfs/logging';
 import registry from 'k6/x/frostfs/registry';
 import s3 from 'k6/x/frostfs/s3';
-import { SharedArray } from 'k6/data';
-import { sleep } from 'k6';
-import { textSummary } from './libs/k6-summary-0.0.2.js';
-import { parseEnv } from './libs/env-parser.js';
-import { uuidv4 } from './libs/k6-utils-1.4.0.js';
+import stats from 'k6/x/frostfs/stats';
+
+import {newGenerator} from './libs/datagen.js';
+import {parseEnv} from './libs/env-parser.js';
+import {textSummary} from './libs/k6-summary-0.0.2.js';
+import {uuidv4} from './libs/k6-utils-1.4.0.js';
 
 parseEnv();
 
-const obj_list = new SharedArray('obj_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
+const obj_list = new SharedArray('obj_list', function() {
+  return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
 });
 
-const bucket_list = new SharedArray('bucket_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).buckets;
+const bucket_list = new SharedArray('bucket_list', function() {
+  return JSON.parse(open(__ENV.PREGEN_JSON)).buckets;
 });
 
 const read_size = JSON.parse(open(__ENV.PREGEN_JSON)).obj_size;
-const summary_json = __ENV.SUMMARY_JSON || "/tmp/summary.json";
+const summary_json = __ENV.SUMMARY_JSON || '/tmp/summary.json';
 
 // Select random S3 endpoint for current VU
 const s3_endpoints = __ENV.S3_ENDPOINTS.split(',');
-const s3_endpoint = s3_endpoints[Math.floor(Math.random() * s3_endpoints.length)];
-const s3_client = s3.connect(`http://${s3_endpoint}`);
-const log = logging.new().withField("endpoint", s3_endpoint);
+const s3_endpoint =
+    s3_endpoints[Math.floor(Math.random() * s3_endpoints.length)];
+const no_verify_ssl = __ENV.NO_VERIFY_SSL || 'true';
+const connection_args = {
+  no_verify_ssl: no_verify_ssl
+};
+const s3_client = s3.connect(s3_endpoint, connection_args);
+const log = logging.new().withField('endpoint', s3_endpoint);
 
 const registry_enabled = !!__ENV.REGISTRY_FILE;
-const obj_registry = registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
+const obj_registry =
+    registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
 
 const duration = __ENV.DURATION;
 
+if (!!__ENV.METRIC_TAGS) {
+  stats.setTags(__ENV.METRIC_TAGS)
+}
+
 const delete_age = __ENV.DELETE_AGE ? parseInt(__ENV.DELETE_AGE) : undefined;
 let obj_to_delete_selector = undefined;
 if (registry_enabled && delete_age) {
-    obj_to_delete_selector = registry.getSelector(
-        __ENV.REGISTRY_FILE,
-        "obj_to_delete",
-        __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0,
-        {
-            status: "created",
-            age: delete_age,
-        }
-    );
+  obj_to_delete_selector = registry.getSelector(
+      __ENV.REGISTRY_FILE, 'obj_to_delete',
+      __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+        status: 'created',
+        age: delete_age,
+      });
 }
 
-const generator = datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE));
+const read_age = __ENV.READ_AGE ? parseInt(__ENV.READ_AGE) : 10;
+let obj_to_read_selector = undefined;
+if (registry_enabled) {
+  obj_to_read_selector = registry.getLoopedSelector(
+      __ENV.REGISTRY_FILE, 'obj_to_read',
+      __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+        status: 'created',
+        age: read_age,
+      })
+}
 
 const scenarios = {};
 
@@ -54,17 +72,18 @@ const time_unit = __ENV.TIME_UNIT || '1s';
 const pre_alloc_write_vus = parseInt(__ENV.PRE_ALLOC_WRITERS || '0');
 const max_write_vus = parseInt(__ENV.MAX_WRITERS || pre_alloc_write_vus);
 const write_rate = parseInt(__ENV.WRITE_RATE || '0');
+const generator = newGenerator(write_rate > 0);
 if (write_rate > 0) {
-    scenarios.write = {
-        executor: 'constant-arrival-rate',
-        duration: `${duration}s`,
-        preAllocatedVUs: pre_alloc_write_vus,
-        maxVUs: max_write_vus,
-        rate: write_rate,
-        timeUnit: time_unit,
-        exec: 'obj_write', 
-        gracefulStop: '5s',
-    };
+  scenarios.write = {
+    executor: 'constant-arrival-rate',
+    duration: `${duration}s`,
+    preAllocatedVUs: pre_alloc_write_vus,
+    maxVUs: max_write_vus,
+    rate: write_rate,
+    timeUnit: time_unit,
+    exec: 'obj_write',
+    gracefulStop: '5s',
+  };
 }
 
 
@@ -72,16 +91,16 @@ const pre_alloc_read_vus = parseInt(__ENV.PRE_ALLOC_READERS || '0');
 const max_read_vus = parseInt(__ENV.MAX_READERS || pre_alloc_read_vus);
 const read_rate = parseInt(__ENV.READ_RATE || '0');
 if (read_rate > 0) {
-    scenarios.read = {
-        executor: 'constant-arrival-rate',
-        duration: `${duration}s`,
-        preAllocatedVUs: pre_alloc_write_vus,
-        maxVUs: max_read_vus,
-        rate: read_rate,
-        timeUnit: time_unit,
-        exec: 'obj_read', 
-        gracefulStop: '5s',
-    };
+  scenarios.read = {
+    executor: 'constant-arrival-rate',
+    duration: `${duration}s`,
+    preAllocatedVUs: pre_alloc_write_vus,
+    maxVUs: max_read_vus,
+    rate: read_rate,
+    timeUnit: time_unit,
+    exec: 'obj_read',
+    gracefulStop: '5s',
+  };
 }
 
 
@@ -89,109 +108,132 @@ const pre_alloc_delete_vus = parseInt(__ENV.PRE_ALLOC_DELETERS || '0');
 const max_delete_vus = parseInt(__ENV.MAX_DELETERS || pre_alloc_write_vus);
 const delete_rate = parseInt(__ENV.DELETE_RATE || '0');
 if (delete_rate > 0) {
-    if (!obj_to_delete_selector) {
-        throw new Error('Positive DELETE worker number without a proper object selector');
-    }
+  if (!obj_to_delete_selector) {
+    throw new Error(
+        'Positive DELETE worker number without a proper object selector');
+  }
 
-    scenarios.delete = {
-        executor: 'constant-arrival-rate',
-        duration: `${duration}s`,
-        preAllocatedVUs: pre_alloc_delete_vus,
-        maxVUs: max_delete_vus,
-        rate: delete_rate,
-        timeUnit: time_unit,
-        exec: 'obj_delete', 
-        gracefulStop: '5s',
-    };
+  scenarios.delete = {
+    executor: 'constant-arrival-rate',
+    duration: `${duration}s`,
+    preAllocatedVUs: pre_alloc_delete_vus,
+    maxVUs: max_delete_vus,
+    rate: delete_rate,
+    timeUnit: time_unit,
+    exec: 'obj_delete',
+    gracefulStop: '5s',
+  };
 }
 
 export const options = {
-    scenarios,
-    setupTimeout: '5s',
+  scenarios,
+  setupTimeout: '5s',
 };
 
 export function setup() {
-    const total_pre_allocated_vu_count = pre_alloc_write_vus + pre_alloc_read_vus + pre_alloc_delete_vus;
-    const total_max_vu_count = max_read_vus + max_write_vus + max_delete_vus
+  const total_pre_allocated_vu_count =
+      pre_alloc_write_vus + pre_alloc_read_vus + pre_alloc_delete_vus;
+  const total_max_vu_count = max_read_vus + max_write_vus + max_delete_vus
 
-    console.log(`Pregenerated buckets:          ${bucket_list.length}`);
-    console.log(`Pregenerated read object size: ${read_size}`);
-    console.log(`Pregenerated total objects:    ${obj_list.length}`);
-    console.log(`Pre allocated reading VUs:     ${pre_alloc_read_vus}`);
-    console.log(`Pre allocated writing VUs:     ${pre_alloc_write_vus}`);
-    console.log(`Pre allocated deleting VUs:    ${pre_alloc_delete_vus}`);
-    console.log(`Total pre allocated VUs:       ${total_pre_allocated_vu_count}`);
-    console.log(`Max reading VUs:               ${max_read_vus}`);
-    console.log(`Max writing VUs:               ${max_write_vus}`);
-    console.log(`Max deleting VUs:              ${max_delete_vus}`);
-    console.log(`Total max VUs:                 ${total_max_vu_count}`);
-    console.log(`Time unit:                     ${time_unit}`);
-    console.log(`Read rate:                     ${read_rate}`);
-    console.log(`Writing rate:                  ${write_rate}`);
-    console.log(`Delete rate:                   ${delete_rate}`);
+  console.log(`Pregenerated buckets:          ${bucket_list.length}`);
+  console.log(`Pregenerated read object size: ${read_size}`);
+  console.log(`Pregenerated total objects:    ${obj_list.length}`);
+  console.log(`Pre allocated reading VUs:     ${pre_alloc_read_vus}`);
+  console.log(`Pre allocated writing VUs:     ${pre_alloc_write_vus}`);
+  console.log(`Pre allocated deleting VUs:    ${pre_alloc_delete_vus}`);
+  console.log(`Total pre allocated VUs:       ${total_pre_allocated_vu_count}`);
+  console.log(`Max reading VUs:               ${max_read_vus}`);
+  console.log(`Max writing VUs:               ${max_write_vus}`);
+  console.log(`Max deleting VUs:              ${max_delete_vus}`);
+  console.log(`Total max VUs:                 ${total_max_vu_count}`);
+  console.log(`Time unit:                     ${time_unit}`);
+  console.log(`Read rate:                     ${read_rate}`);
+  console.log(`Writing rate:                  ${write_rate}`);
+  console.log(`Delete rate:                   ${delete_rate}`);
+
+  const start_timestamp = Date.now()
+  console.log(
+      `Load started at:               ${Date(start_timestamp).toString()}`)
 }
 
 export function teardown(data) {
-    if (obj_registry) {
-        obj_registry.close();
-    }
+  if (obj_registry) {
+    obj_registry.close();
+  }
+  const end_timestamp = Date.now()
+  console.log(
+      `Load finished at:              ${Date(end_timestamp).toString()}`)
 }
 
 export function handleSummary(data) {
-    return {
-        'stdout': textSummary(data, { indent: ' ', enableColors: false }),
-        [summary_json]: JSON.stringify(data),
-    };
-  }
+  return {
+    'stdout': textSummary(data, {indent: ' ', enableColors: false}),
+    [summary_json]: JSON.stringify(data),
+  };
+}
 
 export function obj_write() {
-    if (__ENV.SLEEP_WRITE) {
-        sleep(__ENV.SLEEP_WRITE);
-    }
+  if (__ENV.SLEEP_WRITE) {
+    sleep(__ENV.SLEEP_WRITE);
+  }
 
-    const key = __ENV.OBJ_NAME || uuidv4();
-    const bucket = bucket_list[Math.floor(Math.random() * bucket_list.length)];
+  const key = __ENV.OBJ_NAME || uuidv4();
+  const bucket = bucket_list[Math.floor(Math.random() * bucket_list.length)];
 
-    const { payload, hash } = generator.genPayload(registry_enabled);
-    const resp = s3_client.put(bucket, key, payload);
-    if (!resp.success) {
-        log.withFields({bucket: bucket, key: key}).error(resp.error);
-        return;
-    }
+  const payload = generator.genPayload();
+  const resp = s3_client.put(bucket, key, payload);
+  if (!resp.success) {
+    log.withFields({bucket: bucket, key: key}).error(resp.error);
+    return;
+  }
 
-    if (obj_registry) {
-        obj_registry.addObject("", "", bucket, key, hash);
-    }
+  if (obj_registry) {
+    obj_registry.addObject('', '', bucket, key, payload.hash());
+  }
 }
 
 export function obj_read() {
-    if (__ENV.SLEEP_READ) {
-        sleep(__ENV.SLEEP_READ);
+  if (__ENV.SLEEP_READ) {
+    sleep(__ENV.SLEEP_READ);
+  }
+
+  if (obj_to_read_selector) {
+    const obj = obj_to_read_selector.nextObject();
+    if (!obj) {
+      return;
     }
-
-    const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
-
-    const resp = s3_client.get(obj.bucket, obj.object);
+    const resp = s3_client.get(obj.s3_bucket, obj.s3_key)
     if (!resp.success) {
-        log.withFields({bucket: obj.bucket, key: obj.object}).error(resp.error);
-    } 
+      log.withFields({bucket: obj.s3_bucket, key: obj.s3_key})
+          .error(resp.error);
+    }
+    return
+  }
+
+  const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
+
+  const resp = s3_client.get(obj.bucket, obj.object);
+  if (!resp.success) {
+    log.withFields({bucket: obj.bucket, key: obj.object}).error(resp.error);
+  }
 }
 
 export function obj_delete() {
-    if (__ENV.SLEEP_DELETE) {
-        sleep(__ENV.SLEEP_DELETE);
-    }
+  if (__ENV.SLEEP_DELETE) {
+    sleep(__ENV.SLEEP_DELETE);
+  }
 
-    const obj = obj_to_delete_selector.nextObject();
-    if (!obj) {
-        return;
-    }
+  const obj = obj_to_delete_selector.nextObject();
+  if (!obj) {
+    return;
+  }
 
-    const resp = s3_client.delete(obj.s3_bucket, obj.s3_key);
-    if (!resp.success) {
-        log.withFields({bucket: obj.s3_bucket, key: obj.s3_key, op: "DELETE"}).error(resp.error);
-        return;
-    }
+  const resp = s3_client.delete(obj.s3_bucket, obj.s3_key);
+  if (!resp.success) {
+    log.withFields({bucket: obj.s3_bucket, key: obj.s3_key, op: 'DELETE'})
+        .error(resp.error);
+    return;
+  }
 
-    obj_registry.deleteObject(obj.id);
+  obj_registry.deleteObject(obj.id);
 }

scenarios/s3_dar.js

@@ -0,0 +1,233 @@
+import {sleep} from 'k6';
+import {SharedArray} from 'k6/data';
+import exec from 'k6/execution';
+import logging from 'k6/x/frostfs/logging';
+import registry from 'k6/x/frostfs/registry';
+import s3 from 'k6/x/frostfs/s3';
+import stats from 'k6/x/frostfs/stats';
+
+import {newGenerator} from './libs/datagen.js';
+import {parseEnv} from './libs/env-parser.js';
+import {textSummary} from './libs/k6-summary-0.0.2.js';
+import {uuidv4} from './libs/k6-utils-1.4.0.js';
+
+parseEnv();
+
+const obj_list = new SharedArray(
+    'obj_list',
+    function() { return JSON.parse(open(__ENV.PREGEN_JSON)).objects; });
+
+const bucket_list = new SharedArray(
+    'bucket_list',
+    function() { return JSON.parse(open(__ENV.PREGEN_JSON)).buckets; });
+
+const read_size = JSON.parse(open(__ENV.PREGEN_JSON)).obj_size;
+const summary_json = __ENV.SUMMARY_JSON || '/tmp/summary.json';
+
+const no_verify_ssl = __ENV.NO_VERIFY_SSL || 'true';
+
+const connection_args = {
+    no_verify_ssl : no_verify_ssl
+}
+// Select random S3 endpoint for current VU
+const s3_endpoints = __ENV.S3_ENDPOINTS.split(',');
+const s3_endpoint =
+    s3_endpoints[Math.floor(Math.random() * s3_endpoints.length)];
+const s3_client = s3.connect(s3_endpoint, connection_args);
+const log = logging.new().withField('endpoint', s3_endpoint);
+
+const registry_enabled = !!__ENV.REGISTRY_FILE;
+const obj_registry =
+    registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
+
+const duration = __ENV.DURATION;
+
+if (!!__ENV.METRIC_TAGS) {
+    stats.setTags(__ENV.METRIC_TAGS)
+}
+
+const read_age = __ENV.READ_AGE ? parseInt(__ENV.READ_AGE) : 10;
+let obj_to_read_selector = undefined;
+if (registry_enabled) {
+    obj_to_read_selector = registry.getSelector(
+        __ENV.REGISTRY_FILE, 'obj_to_read',
+        __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+            status : 'created',
+            age : read_age,
+        })
+}
+
+const scenarios = {};
+
+const write_vu_count = parseInt(__ENV.WRITERS || '0');
+const generator = newGenerator(write_vu_count > 0);
+if (write_vu_count > 0) {
+    scenarios.write = {
+        executor : 'constant-vus',
+        vus : write_vu_count,
+        duration : `${duration}s`,
+        exec : 'obj_write',
+        gracefulStop : '5s',
+    };
+}
+
+const read_vu_count = parseInt(__ENV.READERS || '0');
+if (read_vu_count > 0) {
+    scenarios.read = {
+        executor : 'constant-vus',
+        vus : read_vu_count,
+        duration : `${duration}s`,
+        exec : 'obj_read',
+        gracefulStop : '5s',
+    };
+}
+
+const delete_age = __ENV.DELETE_AGE ? parseInt(__ENV.DELETE_AGE) : undefined;
+let obj_to_delete_selector = undefined;
+let obj_to_delete_exit_on_null = undefined;
+
+if (registry_enabled ) {
+    obj_to_delete_exit_on_null = (write_vu_count == 0) && (read_vu_count == 0)
+
+    let constructor = obj_to_delete_exit_on_null ? registry.getOneshotSelector
+        : registry.getSelector;
+
+    obj_to_delete_selector =
+        constructor(__ENV.REGISTRY_FILE, 'obj_to_delete',
+            __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+                status : 'read',
+                age : delete_age,
+            });
+}
+
+
+
+const delete_vu_count = parseInt(__ENV.DELETERS || '0');
+if (delete_vu_count > 0) {
+    if (!obj_to_delete_selector) {
+        throw 'Positive DELETE worker number without a proper object selector';
+    }
+
+    scenarios.delete = {
+        executor : 'constant-vus',
+        vus : delete_vu_count,
+        duration : `${duration}s`,
+        exec : 'obj_delete',
+        gracefulStop : '5s',
+    };
+}
+
+export const options = {
+    scenarios,
+    setupTimeout : '5s',
+};
+
+export function setup() {
+    const total_vu_count = write_vu_count + read_vu_count + delete_vu_count;
+
+    console.log(`Pregenerated buckets:          ${bucket_list.length}`);
+    console.log(`Pregenerated read object size: ${read_size}`);
+    console.log(`Pregenerated total objects:    ${obj_list.length}`);
+    console.log(`Reading VUs:                   ${read_vu_count}`);
+    console.log(`Writing VUs:                   ${write_vu_count}`);
+    console.log(`Deleting VUs:                  ${delete_vu_count}`);
+    console.log(`Total VUs:                     ${total_vu_count}`);
+
+    const start_timestamp = Date.now()
+    console.log(
+        `Load started at:               ${Date(start_timestamp).toString()}`)
+}
+
+export function teardown(data) {
+    if (obj_registry) {
+        obj_registry.close();
+    }
+    const end_timestamp = Date.now()
+    console.log(
+        `Load finished at:              ${Date(end_timestamp).toString()}`)
+}
+
+export function handleSummary(data) {
+    return {
+        'stdout' : textSummary(data, {indent : ' ', enableColors : false}),
+        [summary_json] : JSON.stringify(data),
+    };
+}
+
+export function obj_write() {
+    if (__ENV.SLEEP_WRITE) {
+        sleep(__ENV.SLEEP_WRITE);
+    }
+
+    const key = __ENV.OBJ_NAME || uuidv4();
+    const bucket = bucket_list[Math.floor(Math.random() * bucket_list.length)];
+
+    const payload = generator.genPayload();
+    const resp = s3_client.put(bucket, key, payload);
+    if (!resp.success) {
+        log.withFields({bucket : bucket, key : key}).error(resp.error);
+        return;
+    }
+
+    if (obj_registry) {
+        obj_registry.addObject('', '', bucket, key, payload.hash());
+    }
+}
+
+export function obj_read() {
+    if (__ENV.SLEEP_READ) {
+        sleep(__ENV.SLEEP_READ);
+    }
+
+    if (obj_to_read_selector) {
+        const obj = obj_to_read_selector.nextObject();
+        if (!obj  ) {
+            return;
+        }
+        const resp = s3_client.get(obj.s3_bucket, obj.s3_key)
+        if (!resp.success) {
+            log.withFields({bucket : obj.s3_bucket, key : obj.s3_key, status: obj.status, op: `READ`})
+                .error(resp.error);
+        } else {
+            obj_registry.setObjectStatus(obj.id, obj.status, 'read');
+        }
+
+        return
+    }
+
+    const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
+
+    const resp = s3_client.get(obj.bucket, obj.object);
+    if (!resp.success) {
+        log.withFields({bucket : obj.bucket, key : obj.object}).error(resp.error);
+    } else {
+        obj_registry.setObjectStatus(obj.id, obj.status, 'read');
+    }
+}
+
+export function obj_delete() {
+    if (__ENV.SLEEP_DELETE) {
+        sleep(__ENV.SLEEP_DELETE);
+    }
+
+    const obj = obj_to_delete_selector.nextObject();
+    delete_object(obj)
+}
+
+export function delete_object(obj) {
+    if (!obj) {
+        if (obj_to_delete_exit_on_null) {
+            exec.test.abort("No more objects to select");
+        }
+        return;
+    }
+
+    const resp = s3_client.delete(obj.s3_bucket, obj.s3_key);
+    if (!resp.success) {
+        log.withFields({bucket : obj.s3_bucket, key : obj.s3_key, op : 'DELETE'})
+            .error(resp.error);
+        return;
+    }
+
+    obj_registry.deleteObject(obj.id);
+}

scenarios/s3_multipart.js

@@ -0,0 +1,119 @@
+import {sleep} from 'k6';
+import {SharedArray} from 'k6/data';
+import logging from 'k6/x/frostfs/logging';
+import registry from 'k6/x/frostfs/registry';
+import s3 from 'k6/x/frostfs/s3';
+import stats from 'k6/x/frostfs/stats';
+
+import {newGenerator} from './libs/datagen.js';
+import {parseEnv} from './libs/env-parser.js';
+import {textSummary} from './libs/k6-summary-0.0.2.js';
+import {uuidv4} from './libs/k6-utils-1.4.0.js';
+
+parseEnv();
+
+const bucket_list = new SharedArray('bucket_list', function() {
+  return JSON.parse(open(__ENV.PREGEN_JSON)).buckets;
+});
+
+const summary_json = __ENV.SUMMARY_JSON || '/tmp/summary.json';
+
+// Select random S3 endpoint for current VU
+const s3_endpoints = __ENV.S3_ENDPOINTS.split(',');
+const s3_endpoint =
+    s3_endpoints[Math.floor(Math.random() * s3_endpoints.length)];
+const no_verify_ssl = __ENV.NO_VERIFY_SSL || 'true';
+const connection_args = {
+  no_verify_ssl: no_verify_ssl
+};
+const s3_client = s3.connect(s3_endpoint, connection_args);
+const log = logging.new().withField('endpoint', s3_endpoint);
+
+const registry_enabled = !!__ENV.REGISTRY_FILE;
+const obj_registry =
+    registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
+
+const duration = __ENV.DURATION;
+
+if (!!__ENV.METRIC_TAGS) {
+  stats.setTags(__ENV.METRIC_TAGS)
+}
+
+const scenarios = {};
+
+const write_vu_count = parseInt(__ENV.WRITERS || '0');
+if (write_vu_count < 1) {
+  throw 'number of VUs (env WRITERS) performing write operations should be greater than 0';
+}
+
+const write_multipart_vu_count = parseInt(__ENV.WRITERS_MULTIPART || '0');
+if (write_multipart_vu_count < 1) {
+  throw 'number of parts (env WRITERS_MULTIPART) to upload in parallel should be greater than 0';
+}
+
+const generator =
+    newGenerator(write_vu_count > 0 || write_multipart_vu_count > 0);
+if (write_vu_count > 0) {
+  scenarios.write_multipart = {
+    executor: 'constant-vus',
+    vus: write_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_write_multipart',
+    gracefulStop: '5s',
+  };
+}
+
+export const options = {
+  scenarios,
+  setupTimeout: '5s',
+};
+
+export function setup() {
+  const total_vu_count = write_vu_count * write_multipart_vu_count;
+
+  console.log(`Pregenerated buckets:          ${bucket_list.length}`);
+  console.log(`Writing VUs:                   ${write_vu_count}`);
+  console.log(`Writing multipart VUs:         ${write_multipart_vu_count}`);
+  console.log(`Total VUs:                     ${total_vu_count}`);
+}
+
+export function teardown(data) {
+  if (obj_registry) {
+    obj_registry.close();
+  }
+}
+
+export function handleSummary(data) {
+  return {
+    'stdout': textSummary(data, {indent: ' ', enableColors: false}),
+    [summary_json]: JSON.stringify(data),
+  };
+}
+
+const write_multipart_part_size =
+    1024 * parseInt(__ENV.WRITE_OBJ_PART_SIZE || '0')
+if (write_multipart_part_size < 5 * 1024 * 1024) {
+  throw 'part size (env WRITE_OBJ_PART_SIZE * 1024) must be greater than (5 MB)';
+}
+
+export function obj_write_multipart() {
+  if (__ENV.SLEEP_WRITE) {
+    sleep(__ENV.SLEEP_WRITE);
+  }
+
+  const key = __ENV.OBJ_NAME || uuidv4();
+  const bucket = bucket_list[Math.floor(Math.random() * bucket_list.length)];
+
+  const payload = generator.genPayload();
+  const resp = s3_client.multipart(
+      bucket, key, write_multipart_part_size, write_multipart_vu_count,
+      payload);
+  if (!resp.success) {
+    log.withFields({bucket: bucket, key: key}).error(resp.error);
+    return;
+  }
+
+  if (obj_registry) {
+    obj_registry.addObject('', '', bucket, key, payload.hash());
+  }
+}

scenarios/s3local.js

@@ -1,127 +1,172 @@
-import datagen from 'k6/x/frostfs/datagen';
+import {SharedArray} from 'k6/data';
+import exec from 'k6/execution';
 import logging from 'k6/x/frostfs/logging';
 import registry from 'k6/x/frostfs/registry';
 import s3local from 'k6/x/frostfs/s3local';
-import { SharedArray } from 'k6/data';
-import { textSummary } from './libs/k6-summary-0.0.2.js';
-import { parseEnv } from './libs/env-parser.js';
-import { uuidv4 } from './libs/k6-utils-1.4.0.js';
+import stats from 'k6/x/frostfs/stats';
+
+import {newGenerator} from './libs/datagen.js';
+import {parseEnv} from './libs/env-parser.js';
+import {textSummary} from './libs/k6-summary-0.0.2.js';
+import {uuidv4} from './libs/k6-utils-1.4.0.js';
 
 parseEnv();
 
-const obj_list = new SharedArray('obj_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
+const obj_list = new SharedArray('obj_list', function() {
+  return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
 });
 
-const container_list = new SharedArray('container_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).containers;
+const container_list = new SharedArray('container_list', function() {
+  return JSON.parse(open(__ENV.PREGEN_JSON)).containers;
 });
 
-const bucket_list = new SharedArray('bucket_list', function () {
-    return JSON.parse(open(__ENV.PREGEN_JSON)).buckets;
+const bucket_list = new SharedArray('bucket_list', function() {
+  return JSON.parse(open(__ENV.PREGEN_JSON)).buckets;
 });
 
 function bucket_mapping() {
-    if (container_list.length != bucket_list.length) {
-        throw 'The number of containers and buckets in the preset file must be the same.';
-    }
-    let mapping = {};
-    for (let i = 0; i < container_list.length; ++i) {
-        mapping[bucket_list[i]] = container_list[i];
-    }
-    return mapping;
+  if (container_list.length != bucket_list.length) {
+    throw 'The number of containers and buckets in the preset file must be the same.';
+  }
+  let mapping = {};
+  for (let i = 0; i < container_list.length; ++i) {
+    mapping[bucket_list[i]] = container_list[i];
+  }
+  return mapping;
 }
 
 const read_size = JSON.parse(open(__ENV.PREGEN_JSON)).obj_size;
-const summary_json = __ENV.SUMMARY_JSON || "/tmp/summary.json";
+const summary_json = __ENV.SUMMARY_JSON || '/tmp/summary.json';
 
 const config_file = __ENV.CONFIG_FILE;
-const s3_client = s3local.connect(config_file, {
-    'debug_logger': __ENV.DEBUG_LOGGER || 'false',
-}, bucket_mapping());
-const log = logging.new().withField("config", config_file);
+const config_dir = __ENV.CONFIG_DIR;
+const max_total_size_gb =
+    __ENV.MAX_TOTAL_SIZE_GB ? parseInt(__ENV.MAX_TOTAL_SIZE_GB) : 0;
+const s3_client = s3local.connect(
+    config_file, config_dir, {
+      'debug_logger': __ENV.DEBUG_LOGGER || 'false',
+    },
+    bucket_mapping(), max_total_size_gb);
+const log = logging.new().withFields(
+    {'config_file': config_file, 'config_dir': config_dir});
+
+if (!!__ENV.METRIC_TAGS) {
+  stats.setTags(__ENV.METRIC_TAGS)
+}
 
 const registry_enabled = !!__ENV.REGISTRY_FILE;
-const obj_registry = registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
+const obj_registry =
+    registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
+
+let obj_to_read_selector = undefined;
+if (registry_enabled) {
+  obj_to_read_selector = registry.getLoopedSelector(
+      __ENV.REGISTRY_FILE, 'obj_to_read',
+      __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+        status: 'created',
+      })
+}
 
 const duration = __ENV.DURATION;
 
-const generator = datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE));
-
 const scenarios = {};
 
 const write_vu_count = parseInt(__ENV.WRITERS || '0');
+const generator = newGenerator(write_vu_count > 0);
 if (write_vu_count > 0) {
-    scenarios.write = {
-        executor: 'constant-vus',
-        vus: write_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_write', 
-        gracefulStop: '5s',
-    };
+  scenarios.write = {
+    executor: 'constant-vus',
+    vus: write_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_write',
+    gracefulStop: '5s',
+  };
 }
 
 const read_vu_count = parseInt(__ENV.READERS || '0');
 if (read_vu_count > 0) {
-    scenarios.read = {
-        executor: 'constant-vus',
-        vus: read_vu_count,
-        duration: `${duration}s`,
-        exec: 'obj_read', 
-        gracefulStop: '5s',
-    };
+  scenarios.read = {
+    executor: 'constant-vus',
+    vus: read_vu_count,
+    duration: `${duration}s`,
+    exec: 'obj_read',
+    gracefulStop: '5s',
+  };
 }
 
 export const options = {
-    scenarios,
-    setupTimeout: '5s',
+  scenarios,
+  setupTimeout: '5s',
 };
 
 export function setup() {
-    const total_vu_count = write_vu_count + read_vu_count;
+  const total_vu_count = write_vu_count + read_vu_count;
 
-    console.log(`Pregenerated buckets:          ${bucket_list.length}`);
-    console.log(`Pregenerated read object size: ${read_size}`);
-    console.log(`Pregenerated total objects:    ${obj_list.length}`);
-    console.log(`Reading VUs:                   ${read_vu_count}`);
-    console.log(`Writing VUs:                   ${write_vu_count}`);
-    console.log(`Total VUs:                     ${total_vu_count}`);
+  console.log(`Pregenerated buckets:          ${bucket_list.length}`);
+  console.log(`Pregenerated read object size: ${read_size}`);
+  console.log(`Pregenerated total objects:    ${obj_list.length}`);
+  console.log(`Reading VUs:                   ${read_vu_count}`);
+  console.log(`Writing VUs:                   ${write_vu_count}`);
+  console.log(`Total VUs:                     ${total_vu_count}`);
+
+  const start_timestamp = Date.now()
+  console.log(
+      `Load started at:               ${Date(start_timestamp).toString()}`)
 }
 
 export function teardown(data) {
-    if (obj_registry) {
-        obj_registry.close();
-    }
+  if (obj_registry) {
+    obj_registry.close();
+  }
+  const end_timestamp = Date.now()
+  console.log(
+      `Load finished at:              ${Date(end_timestamp).toString()}`)
 }
 
 export function handleSummary(data) {
-    return {
-        'stdout': textSummary(data, { indent: ' ', enableColors: false }),
-        [summary_json]: JSON.stringify(data),
-    };
-  }
+  return {
+    'stdout': textSummary(data, {indent: ' ', enableColors: false}),
+    [summary_json]: JSON.stringify(data),
+  };
+}
 
 export function obj_write() {
-    const key = __ENV.OBJ_NAME || uuidv4();
-    const bucket = bucket_list[Math.floor(Math.random() * bucket_list.length)];
+  const key = __ENV.OBJ_NAME || uuidv4();
+  const bucket = bucket_list[Math.floor(Math.random() * bucket_list.length)];
 
-    const { payload, hash } = generator.genPayload(registry_enabled);
-    const resp = s3_client.put(bucket, key, payload);
-    if (!resp.success) {
-        log.withFields({bucket: bucket, key: key}).error(resp.error);
-        return;
+  const payload = generator.genPayload();
+  const resp = s3_client.put(bucket, key, payload);
+  if (!resp.success) {
+    if (resp.abort) {
+      exec.test.abort(resp.error);
     }
+    log.withFields({bucket: bucket, key: key}).error(resp.error);
+    return;
+  }
 
-    if (obj_registry) {
-        obj_registry.addObject("", "", bucket, key, hash);
-    }
+  if (obj_registry) {
+    obj_registry.addObject('', '', bucket, key, payload.hash());
+  }
 }
 
 export function obj_read() {
-    const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
-
-    const resp = s3_client.get(obj.bucket, obj.object);
+  if (obj_to_read_selector) {
+    const obj = obj_to_read_selector.nextObject();
+    if (!obj) {
+      return;
+    }
+    const resp = s3_client.get(obj.s3_bucket, obj.s3_key)
     if (!resp.success) {
-        log.withFields({bucket: obj.bucket, key: obj.object}).error(resp.error);
-    } 
+      log.withFields({bucket: obj.s3_bucket, key: obj.s3_key})
+          .error(resp.error);
+    }
+    return
+  }
+
+  const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
+
+  const resp = s3_client.get(obj.bucket, obj.object);
+  if (!resp.success) {
+    log.withFields({bucket: obj.bucket, key: obj.object}).error(resp.error);
+  }
 }

scenarios/verify.js

@@ -1,19 +1,21 @@
+import { sleep } from 'k6';
+import { Counter } from 'k6/metrics';
+import logging from 'k6/x/frostfs/logging';
 import native from 'k6/x/frostfs/native';
 import registry from 'k6/x/frostfs/registry';
 import s3 from 'k6/x/frostfs/s3';
-import logging from 'k6/x/frostfs/logging';
-import { sleep } from 'k6';
-import { Counter } from 'k6/metrics';
-import { textSummary } from './libs/k6-summary-0.0.2.js';
+import stats from 'k6/x/frostfs/stats';
+
 import { parseEnv } from './libs/env-parser.js';
+import { textSummary } from './libs/k6-summary-0.0.2.js';
 
 parseEnv();
 
 const obj_registry = registry.open(__ENV.REGISTRY_FILE);
 
 // Time limit (in seconds) for the run
-const time_limit = __ENV.TIME_LIMIT || "60";
-const summary_json = __ENV.SUMMARY_JSON || "/tmp/summary.json";
+const time_limit = __ENV.TIME_LIMIT || '60';
+const summary_json = __ENV.SUMMARY_JSON || '/tmp/summary.json';
 
 // Number of objects in each status. These counters are cumulative in a
 // sense that they reflect total number of objects in the registry, not just
@@ -21,135 +23,147 @@ const summary_json = __ENV.SUMMARY_JSON || "/tmp/summary.json";
 // This allows to run this scenario multiple times and collect overall
 // statistics in the final run.
 const obj_counters = {
-    verified: new Counter('verified_obj'),
-    skipped: new Counter('skipped_obj'),
-    invalid: new Counter('invalid_obj'),
+  verified: new Counter('verified_obj'),
+  skipped: new Counter('skipped_obj'),
+  invalid: new Counter('invalid_obj'),
 };
 
 let log = logging.new();
 
+if (!!__ENV.METRIC_TAGS) {
+  stats.setTags(__ENV.METRIC_TAGS)
+}
+
 // Connect to random gRPC endpoint
 let grpc_client = undefined;
 if (__ENV.GRPC_ENDPOINTS) {
-    const grpcEndpoints = __ENV.GRPC_ENDPOINTS.split(',');
-    const grpcEndpoint = grpcEndpoints[Math.floor(Math.random() * grpcEndpoints.length)];
-    log = log.withField("endpoint", grpcEndpoint);
-    grpc_client = native.connect(grpcEndpoint, '', __ENV.DIAL_TIMEOUT ? parseInt(__ENV.DIAL_TIMEOUT) : 0, __ENV.STREAM_TIMEOUT ? parseInt(__ENV.STREAM_TIMEOUT) : 0);
+  const grpcEndpoints = __ENV.GRPC_ENDPOINTS.split(',');
+  const grpcEndpoint =
+    grpcEndpoints[Math.floor(Math.random() * grpcEndpoints.length)];
+  log = log.withField('endpoint', grpcEndpoint);
+  grpc_client = native.connect(
+    grpcEndpoint, '', __ENV.DIAL_TIMEOUT ? parseInt(__ENV.DIAL_TIMEOUT) : 0,
+    __ENV.STREAM_TIMEOUT ? parseInt(__ENV.STREAM_TIMEOUT) : 0,
+    __ENV.PREPARE_LOCALLY ? __ENV.PREPARE_LOCALLY.toLowerCase() === 'true' : false,
+    1024 * parseInt(__ENV.MAX_OBJECT_SIZE || '0'));
 }
 
 // Connect to random S3 endpoint
 let s3_client = undefined;
 if (__ENV.S3_ENDPOINTS) {
-    const s3_endpoints = __ENV.S3_ENDPOINTS.split(',');
-    const s3_endpoint = s3_endpoints[Math.floor(Math.random() * s3_endpoints.length)];
-    log = log.withField("endpoint", s3_endpoint);
-    s3_client = s3.connect(`http://${s3_endpoint}`);
+  const no_verify_ssl = __ENV.NO_VERIFY_SSL || 'true';
+  const connection_args = { no_verify_ssl: no_verify_ssl };
+  const s3_endpoints = __ENV.S3_ENDPOINTS.split(',');
+  const s3_endpoint =
+    s3_endpoints[Math.floor(Math.random() * s3_endpoints.length)];
+  log = log.withField('endpoint', s3_endpoint);
+  s3_client = s3.connect(s3_endpoint, connection_args);
 }
 
-// We will attempt to verify every object in "created" status. The scenario will execute
-// as many iterations as there are objects. Each object will have 3 retries to be verified
+// We will attempt to verify every object in "created" status. The scenario will
+// execute as many iterations as there are objects. Each object will have 3
+// retries to be verified
 const obj_to_verify_selector = registry.getSelector(
-    __ENV.REGISTRY_FILE,
-    "obj_to_verify",
-    __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0,
-    {
-        status: "created",
-    }
-);
+  __ENV.REGISTRY_FILE, 'obj_to_verify',
+  __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, {
+  status: 'created',
+});
 const obj_to_verify_count = obj_to_verify_selector.count();
-// Execute at least one iteration (executor shared-iterations can't run 0 iterations)
+// Execute at least one iteration (executor shared-iterations can't run 0
+// iterations)
 const iterations = Math.max(1, obj_to_verify_count);
-// Executor shared-iterations requires number of iterations to be larger than number of VUs
+// Executor shared-iterations requires number of iterations to be larger than
+// number of VUs
 const vus = Math.min(__ENV.CLIENTS, iterations);
 
 const scenarios = {
-    verify: {
-        executor: 'shared-iterations',
-        vus,
-        iterations,
-        maxDuration: `${time_limit}s`,
-        exec: 'obj_verify',
-        gracefulStop: '5s',
-    }
+  verify: {
+    executor: 'shared-iterations',
+    vus,
+    iterations,
+    maxDuration: `${time_limit}s`,
+    exec: 'obj_verify',
+    gracefulStop: '5s',
+  }
 };
 
 export const options = {
-    scenarios,
-    setupTimeout: '5s',
+  scenarios,
+  setupTimeout: '5s',
 };
 
 export function setup() {
-    // Populate counters with initial values
-    for (const [status, counter] of Object.entries(obj_counters)) {
-        const obj_selector = registry.getSelector(
-            __ENV.REGISTRY_FILE,
-            status,
-            __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0,
-            { status });
-        counter.add(obj_selector.count());
-    }
+  // Populate counters with initial values
+  for (const [status, counter] of Object.entries(obj_counters)) {
+    const obj_selector = registry.getSelector(
+      __ENV.REGISTRY_FILE, status,
+      __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0, { status });
+    counter.add(obj_selector.count());
+  }
 }
 
 export function handleSummary(data) {
-    return {
-        'stdout': textSummary(data, { indent: ' ', enableColors: false }),
-        [summary_json]: JSON.stringify(data),
-    };
+  return {
+    'stdout': textSummary(data, { indent: ' ', enableColors: false }),
+    [summary_json]: JSON.stringify(data),
+  };
 }
 
 export function obj_verify() {
-    if (obj_to_verify_count == 0) {
-        log.info("Nothing to verify");
-        return;
-    }
+  if (obj_to_verify_count == 0) {
+    log.info('Nothing to verify');
+    return;
+  }
 
-    if (__ENV.SLEEP) {
-        sleep(__ENV.SLEEP);
-    }
+  if (__ENV.SLEEP) {
+    sleep(__ENV.SLEEP);
+  }
 
-    const obj = obj_to_verify_selector.nextObject();
-    if (!obj) {
-        log.info("All objects have been verified");
-        return;
-    }
+  const obj = obj_to_verify_selector.nextObject();
+  if (!obj) {
+    log.info('All objects have been verified');
+    return;
+  }
 
-    const obj_status = verify_object_with_retries(obj, 3);
-    obj_counters[obj_status].add(1);
-    obj_registry.setObjectStatus(obj.id, obj.status, obj_status);
+  const obj_status = verify_object_with_retries(obj, 3);
+  obj_counters[obj_status].add(1);
+  obj_registry.setObjectStatus(obj.id, obj.status, obj_status);
 }
 
 function verify_object_with_retries(obj, attempts) {
-    for (let i = 0; i < attempts; i++) {
-        let result;
-        // Different name is required.
-        // ReferenceError: Cannot access a variable before initialization.
-        let lg = log;
-        if (obj.c_id && obj.o_id) {
-            lg = lg.withFields({cid: obj.c_id, oid: obj.o_id});
-            result = grpc_client.verifyHash(obj.c_id, obj.o_id, obj.payload_hash);
-        } else if (obj.s3_bucket && obj.s3_key) {
-            lg = lg.withFields({bucket: obj.s3_bucket, key: obj.s3_key});
-            result = s3_client.verifyHash(obj.s3_bucket, obj.s3_key, obj.payload_hash);
-        } else {
-            lg.withFields({
-                cid: obj.c_id,
-                oid: obj.o_id,
-                bucket: obj.s3_bucket,
-                key: obj.s3_key
-            }).warn(`Object cannot be verified with supported protocols`);
-            return "skipped";
-        }
-
-        if (result.success) {
-            return "verified";
-        } else if (result.error == "hash mismatch") {
-            return "invalid";
-        }
-
-        // Unless we explicitly saw that there was a hash mismatch, then we will retry after a delay
-        lg.error(`Verify error: ${result.error}. Object will be re-tried`);
-        sleep(__ENV.SLEEP);
+  for (let i = 0; i < attempts; i++) {
+    let result;
+    // Different name is required.
+    // ReferenceError: Cannot access a variable before initialization.
+    let lg = log;
+    if (obj.c_id && obj.o_id) {
+      lg = lg.withFields({ cid: obj.c_id, oid: obj.o_id });
+      result = grpc_client.verifyHash(obj.c_id, obj.o_id, obj.payload_hash);
+    } else if (obj.s3_bucket && obj.s3_key) {
+      lg = lg.withFields({ bucket: obj.s3_bucket, key: obj.s3_key });
+      result =
+        s3_client.verifyHash(obj.s3_bucket, obj.s3_key, obj.payload_hash);
+    } else {
+      lg.withFields({
+        cid: obj.c_id,
+        oid: obj.o_id,
+        bucket: obj.s3_bucket,
+        key: obj.s3_key
+      }).warn(`Object cannot be verified with supported protocols`);
+      return 'skipped';
     }
 
-    return "invalid";
+    if (result.success) {
+      return 'verified';
+    } else if (result.error == 'hash mismatch') {
+      return 'invalid';
+    }
+
+    // Unless we explicitly saw that there was a hash mismatch, then we will
+    // retry after a delay
+    lg.error(`Verify error: ${result.error}. Object will be re-tried`);
+    sleep(__ENV.SLEEP);
+  }
+
+  return 'invalid';
 }