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[#1024] shard: Resync metabase concurrently 

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
feat/resync_speedup
Dmitrii Stepanov 2024-03-05 15:39:50 +03:00
parent 1005bf4f56
commit 57466594fb
10 changed files with 93 additions and 39 deletions
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11
cmd/frostfs-node/config.go
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@ -119,10 +119,11 @@ type shardCfg struct {
estimateCompressibility bool
estimateCompressibilityThreshold float64
smallSizeObjectLimit uint64
uncompressableContentType []string
refillMetabase bool
mode shardmode.Mode
smallSizeObjectLimit uint64
uncompressableContentType []string
refillMetabase bool
refillMetabaseWorkersCount int
mode shardmode.Mode
metaCfg struct {
path string
@ -234,6 +235,7 @@ func (a *applicationConfiguration) updateShardConfig(c *config.Config, oldConfig
var newConfig shardCfg
newConfig.refillMetabase = oldConfig.RefillMetabase()
newConfig.refillMetabaseWorkersCount = oldConfig.RefillMetabaseWorkersCount()
newConfig.mode = oldConfig.Mode()
newConfig.compress = oldConfig.Compress()
newConfig.estimateCompressibility = oldConfig.EstimateCompressibility()
@ -986,6 +988,7 @@ func (c *cfg) getShardOpts(shCfg shardCfg) shardOptsWithID {
sh.shOpts = []shard.Option{
shard.WithLogger(c.log),
shard.WithRefillMetabase(shCfg.refillMetabase),
shard.WithRefillMetabaseWorkersCount(shCfg.refillMetabaseWorkersCount),
shard.WithMode(shCfg.mode),
shard.WithBlobStorOptions(blobstoreOpts...),
shard.WithMetaBaseOptions(mbOptions...),

2
cmd/frostfs-node/config/engine/config_test.go
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@ -117,6 +117,7 @@ func TestEngineSection(t *testing.T) {
require.Equal(t, false, sc.RefillMetabase())
require.Equal(t, mode.ReadOnly, sc.Mode())
require.Equal(t, 100, sc.RefillMetabaseWorkersCount())
case 1:
require.Equal(t, "tmp/1/blob/pilorama.db", pl.Path())
require.Equal(t, fs.FileMode(0o644), pl.Perm())
@ -168,6 +169,7 @@ func TestEngineSection(t *testing.T) {
require.Equal(t, true, sc.RefillMetabase())
require.Equal(t, mode.ReadWrite, sc.Mode())
require.Equal(t, shardconfig.RefillMetabaseWorkersCountDefault, sc.RefillMetabaseWorkersCount())
}
return nil
})

15
cmd/frostfs-node/config/engine/shard/config.go
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@ -18,6 +18,7 @@ const (
// SmallSizeLimitDefault is a default limit of small objects payload in bytes.
SmallSizeLimitDefault = 1 << 20
EstimateCompressibilityThresholdDefault = 0.1
RefillMetabaseWorkersCountDefault = 500
)
// From wraps config section into Config.
@ -134,6 +135,20 @@ func (x *Config) RefillMetabase() bool {
)
}
// RefillMetabaseWorkersCount returns the value of "resync_metabase_worker_count" config parameter.
//
// Returns RefillMetabaseWorkersCountDefault if the value is not a positive number.
func (x *Config) RefillMetabaseWorkersCount() int {
v := config.IntSafe(
(*config.Config)(x),
"resync_metabase_worker_count",
)
if v > 0 {
return int(v)
}
return RefillMetabaseWorkersCountDefault
}
// Mode return the value of "mode" config parameter.
//
// Panics if read the value is not one of predefined

1
config/example/node.env
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@ -98,6 +98,7 @@ FROSTFS_STORAGE_REBUILD_WORKERS_COUNT=1000
## 0 shard
### Flag to refill Metabase from BlobStor
FROSTFS_STORAGE_SHARD_0_RESYNC_METABASE=false
FROSTFS_STORAGE_SHARD_0_RESYNC_METABASE_WORKER_COUNT=100
### Flag to set shard mode
FROSTFS_STORAGE_SHARD_0_MODE=read-only
### Write cache config

1
config/example/node.json
View File

@ -144,6 +144,7 @@
"0": {
"mode": "read-only",
"resync_metabase": false,
"resync_metabase_worker_count": 100,
"writecache": {
"enabled": false,
"no_sync": true,

1
config/example/node.yaml
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@ -167,6 +167,7 @@ storage:
# degraded-read-only
# disabled (do not work with the shard, allows to not remove it from the config)
resync_metabase: false # sync metabase with blobstor on start, expensive, leave false until complete understanding
resync_metabase_worker_count: 100
writecache:
enabled: false

9
docs/storage-node-configuration.md
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@ -179,14 +179,15 @@ Contains configuration for each shard. Keys must be consecutive numbers starting
`default` subsection has the same format and specifies defaults for missing values.
The following table describes configuration for each shard.
| Parameter | Type | Default value | Description |
|-------------------------------------|---------------------------------------------|---------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Parameter | Type | Default value | Description |
| ------------------------------------------------ | ------------------------------------------- | ------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `compress` | `bool` | `false` | Flag to enable compression. |
| `compression_exclude_content_types` | `[]string` | | List of content-types to disable compression for. Content-type is taken from `Content-Type` object attribute. Each element can contain a star `*` as a first (last) character, which matches any prefix (suffix). |
| `compression_estimate_compressibility` | `bool` | `false` | If `true`, then noramalized compressibility estimation is used to decide compress data or not. |
| `compression_estimate_compressibility_threshold` | `float` | `0.1` | Normilized compressibility estimate threshold: data will compress if estimation if greater than this value. |
| `compression_estimate_compressibility` | `bool` | `false` | If `true`, then noramalized compressibility estimation is used to decide compress data or not. |
| `compression_estimate_compressibility_threshold` | `float` | `0.1` | Normilized compressibility estimate threshold: data will compress if estimation if greater than this value. |
| `mode` | `string` | `read-write` | Shard Mode.<br/>Possible values: `read-write`, `read-only`, `degraded`, `degraded-read-only`, `disabled` |
| `resync_metabase` | `bool` | `false` | Flag to enable metabase resync on start. |
| `resync_metabase_worker_count` | `int` | `1000` | Count of concurrent workers to resync metabase. |
| `writecache` | [Writecache config](#writecache-subsection) | | Write-cache configuration. |
| `metabase` | [Metabase config](#metabase-subsection) | | Metabase configuration. |
| `blobstor` | [Blobstor config](#blobstor-subsection) | | Blobstor configuration. |

76
pkg/local_object_storage/shard/control.go
View File

@ -15,6 +15,7 @@ import (
objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"go.uber.org/zap"
"golang.org/x/sync/errgroup"
)
func (s *Shard) handleMetabaseFailure(stage string, err error) error {
@ -185,39 +186,56 @@ func (s *Shard) refillMetabase(ctx context.Context) error {
return fmt.Errorf("could not reset metabase: %w", err)
}
obj := objectSDK.New()
eg, egCtx := errgroup.WithContext(ctx)
if s.cfg.refillMetabaseWorkersCount > 0 {
eg.SetLimit(s.cfg.refillMetabaseWorkersCount)
}
err = blobstor.IterateBinaryObjects(ctx, s.blobStor, func(addr oid.Address, data []byte, descriptor []byte) error {
if err := obj.Unmarshal(data); err != nil {
s.log.Warn(logs.ShardCouldNotUnmarshalObject,
zap.Stringer("address", addr),
zap.String("err", err.Error()))
itErr := blobstor.IterateBinaryObjects(egCtx, s.blobStor, func(addr oid.Address, data []byte, descriptor []byte) error {
eg.Go(func() error {
obj := objectSDK.New()
if err := obj.Unmarshal(data); err != nil {
s.log.Warn(logs.ShardCouldNotUnmarshalObject,
zap.Stringer("address", addr),
zap.String("err", err.Error()))
return nil
}
var err error
switch obj.Type() {
case objectSDK.TypeTombstone:
err = s.refillTombstoneObject(egCtx, obj)
case objectSDK.TypeLock:
err = s.refillLockObject(egCtx, obj)
default:
}
if err != nil {
return err
}
var mPrm meta.PutPrm
mPrm.SetObject(obj)
mPrm.SetStorageID(descriptor)
_, err = s.metaBase.Put(egCtx, mPrm)
if err != nil && !client.IsErrObjectAlreadyRemoved(err) && !errors.Is(err, meta.ErrObjectIsExpired) {
return err
}
return nil
})
select {
case <-egCtx.Done():
return egCtx.Err()
default:
return nil
}
var err error
switch obj.Type() {
case objectSDK.TypeTombstone:
err = s.refillTombstoneObject(ctx, obj)
case objectSDK.TypeLock:
err = s.refillLockObject(ctx, obj)
default:
}
if err != nil {
return err
}
var mPrm meta.PutPrm
mPrm.SetObject(obj)
mPrm.SetStorageID(descriptor)
_, err = s.metaBase.Put(ctx, mPrm)
if err != nil && !client.IsErrObjectAlreadyRemoved(err) && !errors.Is(err, meta.ErrObjectIsExpired) {
return err
}
return nil
})
egErr := eg.Wait()
err = errors.Join(egErr, itErr)
if err != nil {
return fmt.Errorf("could not put objects to the meta: %w", err)
}

6
pkg/local_object_storage/shard/refill_test.go
View File

@ -5,6 +5,7 @@ import (
"os"
"testing"
shardconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/testutil"
oidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id/test"
"github.com/stretchr/testify/require"
@ -29,7 +30,10 @@ func BenchmarkRefillMetabase(b *testing.B) {
}
func benchRefillMetabase(b *testing.B, objectsCount int) {
sh := newShard(b, false)
sh := newCustomShard(b, false, shardOptions{
additionalShardOptions: []Option{WithRefillMetabaseWorkersCount(shardconfig.RefillMetabaseWorkersCountDefault)},
})
defer func() { require.NoError(b, sh.Close()) }()
var putPrm PutPrm

10
pkg/local_object_storage/shard/shard.go
View File

@ -95,7 +95,8 @@ type MetricsWriter interface {
type cfg struct {
m sync.RWMutex
refillMetabase bool
refillMetabase bool
refillMetabaseWorkersCount int
rmBatchSize int
@ -300,6 +301,13 @@ func WithRefillMetabase(v bool) Option {
}
}
// WithRefillMetabaseWorkersCount returns option to set count of workers to refill the Metabase on Shard's initialization step.
func WithRefillMetabaseWorkersCount(v int) Option {
return func(c *cfg) {
c.refillMetabaseWorkersCount = v
}
}
// WithMode returns option to set shard's mode. Mode must be one of the predefined:
// - mode.ReadWrite;
// - mode.ReadOnly.