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[#1337] blobovniczatree: Add .rebuild temp files

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This allows to reduce open/close DBs to check incompleted rebuilds.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
This commit is contained in:
Dmitrii Stepanov 2024-08-27 15:51:55 +03:00
parent f652518c24
commit 007827255e
6 changed files with 71 additions and 9 deletions
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1
internal/logs/logs.go
View file

@ -543,4 +543,5 @@ const (
WritecacheSealCompletedAsync = "writecache seal completed successfully"
FailedToSealWritecacheAsync = "failed to seal writecache async"
WritecacheShrinkSkippedNotEmpty = "writecache shrink skipped: database is not empty"
BlobovniczatreeFailedToRemoveRebuildTempFile = "failed to remove rebuild temp file"
)

2
pkg/local_object_storage/blobstor/blobovniczatree/blobovnicza.go
View file

@ -135,7 +135,7 @@ func getBlobovniczaMaxIndex(directory string) (bool, uint64, error) {
var hasDBs bool
var maxIdx uint64
for _, e := range entries {
if e.IsDir() {
if e.IsDir() || strings.HasSuffix(e.Name(), rebuildSuffix) {
continue
}
hasDBs = true

6
pkg/local_object_storage/blobstor/blobovniczatree/control.go
View file

@ -2,6 +2,7 @@ package blobovniczatree
import (
"context"
"strings"
"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
@ -41,10 +42,9 @@ func (b *Blobovniczas) initializeDBs(ctx context.Context) error {
eg, egCtx := errgroup.WithContext(ctx)
eg.SetLimit(b.blzInitWorkerCount)
visited := make(map[string]struct{})
err = b.iterateExistingDBPaths(egCtx, func(p string) (bool, error) {
visited[p] = struct{}{}
err = b.iterateIncompletedRebuildDBPaths(egCtx, func(p string) (bool, error) {
eg.Go(func() error {
p = strings.TrimSuffix(p, rebuildSuffix)
shBlz := b.getBlobovniczaWithoutCaching(p)
blz, err := shBlz.Open()
if err != nil {

21
pkg/local_object_storage/blobstor/blobovniczatree/iterate.go
View file

@ -188,11 +188,11 @@ func (b *Blobovniczas) iterateExistingDBPaths(ctx context.Context, f func(string
b.dbFilesGuard.RLock()
defer b.dbFilesGuard.RUnlock()
_, err := b.iterateExistingDBPathsDFS(ctx, "", f)
_, err := b.iterateExistingPathsDFS(ctx, "", f, func(path string) bool { return !strings.HasSuffix(path, rebuildSuffix) })
return err
}
func (b *Blobovniczas) iterateExistingDBPathsDFS(ctx context.Context, path string, f func(string) (bool, error)) (bool, error) {
func (b *Blobovniczas) iterateExistingPathsDFS(ctx context.Context, path string, f func(string) (bool, error), fileFilter func(path string) bool) (bool, error) {
sysPath := filepath.Join(b.rootPath, path)
entries, err := os.ReadDir(sysPath)
if os.IsNotExist(err) && b.readOnly && path == "" { // non initialized tree in read only mode
@ -208,7 +208,7 @@ func (b *Blobovniczas) iterateExistingDBPathsDFS(ctx context.Context, path strin
default:
}
if entry.IsDir() {
stop, err := b.iterateExistingDBPathsDFS(ctx, filepath.Join(path, entry.Name()), f)
stop, err := b.iterateExistingPathsDFS(ctx, filepath.Join(path, entry.Name()), f, fileFilter)
if err != nil {
return false, err
}
@ -216,6 +216,9 @@ func (b *Blobovniczas) iterateExistingDBPathsDFS(ctx context.Context, path strin
return true, nil
}
} else {
if !fileFilter(entry.Name()) {
continue
}
stop, err := f(filepath.Join(path, entry.Name()))
if err != nil {
return false, err
@ -228,6 +231,15 @@ func (b *Blobovniczas) iterateExistingDBPathsDFS(ctx context.Context, path strin
return false, nil
}
// iterateIncompletedRebuildDBPaths iterates over the paths of Blobovniczas with incompleted rebuild files without any order.
func (b *Blobovniczas) iterateIncompletedRebuildDBPaths(ctx context.Context, f func(string) (bool, error)) error {
b.dbFilesGuard.RLock()
defer b.dbFilesGuard.RUnlock()
_, err := b.iterateExistingPathsDFS(ctx, "", f, func(path string) bool { return strings.HasSuffix(path, rebuildSuffix) })
return err
}
func (b *Blobovniczas) iterateSortedDBPaths(ctx context.Context, addr oid.Address, f func(string) (bool, error)) error {
b.dbFilesGuard.RLock()
defer b.dbFilesGuard.RUnlock()
@ -249,6 +261,9 @@ func (b *Blobovniczas) iterateSordedDBPathsInternal(ctx context.Context, path st
var dirIdxs []uint64
for _, entry := range entries {
if strings.HasSuffix(entry.Name(), rebuildSuffix) {
continue
}
idx := u64FromHexString(entry.Name())
if entry.IsDir() {
dirIdxs = append(dirIdxs, idx)

38
pkg/local_object_storage/blobstor/blobovniczatree/rebuild.go
View file

@ -6,6 +6,7 @@ import (
"errors"
"os"
"path/filepath"
"strings"
"sync"
"sync/atomic"
"time"
@ -19,6 +20,8 @@ import (
"golang.org/x/sync/errgroup"
)
const rebuildSuffix = ".rebuild"
var (
errRebuildInProgress = errors.New("rebuild is in progress, the operation cannot be performed")
errBatchFull = errors.New("batch full")
@ -124,15 +127,36 @@ func (b *Blobovniczas) rebuildDB(ctx context.Context, path string, meta common.M
}
shDB.Close()
}()
dropTempFile, err := b.addRebuildTempFile(path)
if err != nil {
return 0, err
}
migratedObjects, err := b.moveObjects(ctx, blz, shDB.SystemPath(), meta, limiter)
if err != nil {
return migratedObjects, err
}
shDBClosed, err = b.dropDB(ctx, path, shDB)
if err == nil {
// drop only on success to continue rebuild on error
dropTempFile()
}
return migratedObjects, err
}
func (b *Blobovniczas) addRebuildTempFile(path string) (func(), error) {
sysPath := filepath.Join(b.rootPath, path)
sysPath = sysPath + rebuildSuffix
_, err := os.OpenFile(sysPath, os.O_RDWR|os.O_CREATE|os.O_EXCL|os.O_SYNC, b.perm)
if err != nil {
return nil, err
}
return func() {
if err := os.Remove(sysPath); err != nil {
b.log.Warn(logs.BlobovniczatreeFailedToRemoveRebuildTempFile, zap.Error(err))
}
}, nil
}
func (b *Blobovniczas) moveObjects(ctx context.Context, blz *blobovnicza.Blobovnicza, blzPath string, meta common.MetaStorage, limiter common.ConcurrentWorkersLimiter) (uint64, error) {
var result atomic.Uint64
batch := make(map[oid.Address][]byte)
@ -256,7 +280,10 @@ func (b *Blobovniczas) dropDirectoryIfEmpty(path string) error {
func (b *Blobovniczas) completeIncompletedMove(ctx context.Context, metaStore common.MetaStorage) (uint64, error) {
var count uint64
return count, b.iterateExistingDBPaths(ctx, func(s string) (bool, error) {
var rebuildTempFilesToRemove []string
err := b.iterateIncompletedRebuildDBPaths(ctx, func(s string) (bool, error) {
rebuildTmpFilePath := s
s = strings.TrimSuffix(s, rebuildSuffix)
shDB := b.getBlobovnicza(s)
blz, err := shDB.Open()
if err != nil {
@ -276,8 +303,15 @@ func (b *Blobovniczas) completeIncompletedMove(ctx context.Context, metaStore co
count++
}
rebuildTempFilesToRemove = append(rebuildTempFilesToRemove, rebuildTmpFilePath)
return false, nil
})
for _, tmp := range rebuildTempFilesToRemove {
if err := os.Remove(filepath.Join(b.rootPath, tmp)); err != nil {
b.log.Warn(logs.BlobovniczatreeFailedToRemoveRebuildTempFile, zap.Error(err))
}
}
return count, err
}
func (b *Blobovniczas) performMove(ctx context.Context, source *blobovnicza.Blobovnicza, sourcePath string,

12
pkg/local_object_storage/blobstor/blobovniczatree/rebuild_failover_test.go
View file

@ -3,6 +3,7 @@ package blobovniczatree
import (
"bytes"
"context"
"os"
"path/filepath"
"sync"
"testing"
@ -53,6 +54,8 @@ func testRebuildFailoverOnlyMoveInfoSaved(t *testing.T) {
}))
require.NoError(t, blz.Close())
_, err = os.OpenFile(filepath.Join(dir, "0", "0", "1.db.rebuild"), os.O_RDWR|os.O_CREATE|os.O_EXCL|os.O_SYNC, defaultPerm)
require.NoError(t, err)
testRebuildFailoverValidate(t, dir, obj, true)
}
@ -82,6 +85,9 @@ func testRebuildFailoverObjectSavedToTarget(t *testing.T) {
require.NoError(t, blz.Close())
_, err = os.OpenFile(filepath.Join(dir, "0", "0", "1.db.rebuild"), os.O_RDWR|os.O_CREATE|os.O_EXCL|os.O_SYNC, defaultPerm)
require.NoError(t, err)
blz = blobovnicza.New(blobovnicza.WithPath(filepath.Join(dir, "0", "0", "0.db")))
require.NoError(t, blz.Open())
require.NoError(t, blz.Init())
@ -113,6 +119,9 @@ func testRebuildFailoverObjectDeletedFromSource(t *testing.T) {
require.NoError(t, blz.Close())
_, err = os.OpenFile(filepath.Join(dir, "0", "0", "1.db.rebuild"), os.O_RDWR|os.O_CREATE|os.O_EXCL|os.O_SYNC, defaultPerm)
require.NoError(t, err)
blz = blobovnicza.New(blobovnicza.WithPath(filepath.Join(dir, "0", "0", "0.db")))
require.NoError(t, blz.Open())
require.NoError(t, blz.Init())
@ -194,4 +203,7 @@ func testRebuildFailoverValidate(t *testing.T, dir string, obj *objectSDK.Object
}
require.NoError(t, blz.Close())
_, err = os.Stat(filepath.Join(dir, "0", "0", "1.db.rebuild"))
require.True(t, os.IsNotExist(err))
}