[#1367] writecache: Drop BBolt related config variables

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

cmd/frostfs-lens/internal/writecache/inspect.go

@@ -25,7 +25,7 @@ func init() {
 func inspectFunc(cmd *cobra.Command, _ []string) {
 	var data []byte
 
-	db, err := writecache.OpenDB(vPath, true, os.OpenFile, 0)
+	db, err := writecache.OpenDB(vPath, true, os.OpenFile)
 	common.ExitOnErr(cmd, common.Errf("could not open write-cache db: %w", err))
 	defer db.Close()
 

cmd/frostfs-lens/internal/writecache/list.go

@@ -31,7 +31,7 @@ func listFunc(cmd *cobra.Command, _ []string) {
 		return err
 	}
 
-	db, err := writecache.OpenDB(vPath, true, os.OpenFile, 0)
+	db, err := writecache.OpenDB(vPath, true, os.OpenFile)
 	common.ExitOnErr(cmd, common.Errf("could not open write-cache db: %w", err))
 	defer db.Close()
 

cmd/frostfs-node/config.go

@@ -145,15 +145,11 @@ type shardCfg struct {
 	writecacheCfg struct {
 		enabled          bool
 		path             string
-		maxBatchSize     int
-		maxBatchDelay    time.Duration
-		smallObjectSize  uint64
 		maxObjSize       uint64
 		flushWorkerCount int
 		sizeLimit        uint64
 		countLimit       uint64
 		noSync           bool
-		pageSize         int
 		flushSizeLimit   uint64
 	}
 
@@ -270,11 +266,7 @@ func (a *applicationConfiguration) setShardWriteCacheConfig(newConfig *shardCfg,
 
 		wc.enabled = true
 		wc.path = writeCacheCfg.Path()
-		wc.maxBatchSize = writeCacheCfg.BoltDB().MaxBatchSize()
-		wc.maxBatchDelay = writeCacheCfg.BoltDB().MaxBatchDelay()
-		wc.pageSize = writeCacheCfg.BoltDB().PageSize()
 		wc.maxObjSize = writeCacheCfg.MaxObjectSize()
-		wc.smallObjectSize = writeCacheCfg.SmallObjectSize()
 		wc.flushWorkerCount = writeCacheCfg.WorkerCount()
 		wc.sizeLimit = writeCacheCfg.SizeLimit()
 		wc.countLimit = writeCacheCfg.CountLimit()
@@ -864,12 +856,8 @@ func (c *cfg) getWriteCacheOpts(shCfg shardCfg) []writecache.Option {
 	if wcRead := shCfg.writecacheCfg; wcRead.enabled {
 		writeCacheOpts = append(writeCacheOpts,
 			writecache.WithPath(wcRead.path),
-			writecache.WithMaxBatchSize(wcRead.maxBatchSize),
-			writecache.WithMaxBatchDelay(wcRead.maxBatchDelay),
-			writecache.WithPageSize(wcRead.pageSize),
 			writecache.WithFlushSizeLimit(wcRead.flushSizeLimit),
 			writecache.WithMaxObjectSize(wcRead.maxObjSize),
-			writecache.WithSmallObjectSize(wcRead.smallObjectSize),
 			writecache.WithFlushWorkersCount(wcRead.flushWorkerCount),
 			writecache.WithMaxCacheSize(wcRead.sizeLimit),
 			writecache.WithMaxCacheCount(wcRead.countLimit),

cmd/frostfs-node/config/engine/config_test.go

@@ -73,11 +73,9 @@ func TestEngineSection(t *testing.T) {
 				require.Equal(t, true, wc.NoSync())
 
 				require.Equal(t, "tmp/0/cache", wc.Path())
-				require.EqualValues(t, 16384, wc.SmallObjectSize())
 				require.EqualValues(t, 134217728, wc.MaxObjectSize())
 				require.EqualValues(t, 30, wc.WorkerCount())
 				require.EqualValues(t, 3221225472, wc.SizeLimit())
-				require.EqualValues(t, 4096, wc.BoltDB().PageSize())
 				require.EqualValues(t, 49, wc.CountLimit())
 				require.EqualValues(t, uint64(100), wc.MaxFlushingObjectsSize())
 
@@ -131,11 +129,9 @@ func TestEngineSection(t *testing.T) {
 				require.Equal(t, false, wc.NoSync())
 
 				require.Equal(t, "tmp/1/cache", wc.Path())
-				require.EqualValues(t, 16384, wc.SmallObjectSize())
 				require.EqualValues(t, 134217728, wc.MaxObjectSize())
 				require.EqualValues(t, 30, wc.WorkerCount())
 				require.EqualValues(t, 4294967296, wc.SizeLimit())
-				require.EqualValues(t, 0, wc.BoltDB().PageSize())
 				require.EqualValues(t, writecacheconfig.CountLimitDefault, wc.CountLimit())
 				require.EqualValues(t, writecacheconfig.MaxFlushingObjectsSizeDefault, wc.MaxFlushingObjectsSize())
 

cmd/frostfs-node/config/engine/shard/writecache/config.go

@@ -2,7 +2,6 @@ package writecacheconfig
 
 import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config"
-	boltdbconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard/boltdb"
 )
 
 // Config is a wrapper over the config section
@@ -10,9 +9,6 @@ import (
 type Config config.Config
 
 const (
-	// SmallSizeDefault is a default size of small objects.
-	SmallSizeDefault = 32 << 10
-
 	// MaxSizeDefault is a default value of the object payload size limit.
 	MaxSizeDefault = 64 << 20
 
@@ -56,22 +52,6 @@ func (x *Config) Path() string {
 	return p
 }
 
-// SmallObjectSize returns the value of "small_object_size" config parameter.
-//
-// Returns SmallSizeDefault if the value is not a positive number.
-func (x *Config) SmallObjectSize() uint64 {
-	s := config.SizeInBytesSafe(
-		(*config.Config)(x),
-		"small_object_size",
-	)
-
-	if s > 0 {
-		return s
-	}
-
-	return SmallSizeDefault
-}
-
 // MaxObjectSize returns the value of "max_object_size" config parameter.
 //
 // Returns MaxSizeDefault if the value is not a positive number.
@@ -143,11 +123,6 @@ func (x *Config) NoSync() bool {
 	return config.BoolSafe((*config.Config)(x), "no_sync")
 }
 
-// BoltDB returns config instance for querying bolt db specific parameters.
-func (x *Config) BoltDB() *boltdbconfig.Config {
-	return (*boltdbconfig.Config)(x)
-}
-
 // MaxFlushingObjectsSize returns the value of "max_flushing_objects_size" config parameter.
 //
 // Returns MaxFlushingObjectsSizeDefault if the value is not a positive number.

docs/storage-node-configuration.md

@@ -287,10 +287,8 @@ writecache:
   enabled: true
   path: /path/to/writecache
   capacity: 4294967296
-  small_object_size: 16384
   max_object_size: 134217728
   flush_worker_count: 30
-  page_size: '4k'
 ```
 
 | Parameter                   | Type       | Default value | Description                                                                                                                   |
@@ -298,13 +296,9 @@ writecache:
 | `path`                      | `string`   |               | Path to the metabase file.                                                                                                    |
 | `capacity`                  | `size`     | `1G`          | Approximate maximum size of the writecache. If the writecache is full, objects are written to the blobstor directly.          |
 | `max_object_count`          | `int`      | unrestricted  | Approximate maximum objects count in the writecache. If the writecache is full, objects are written to the blobstor directly. |
-| `small_object_size`         | `size`     | `32K`         | Maximum object size for "small" objects. This objects are stored in a key-value database instead of a file-system.            |
 | `max_object_size`           | `size`     | `64M`         | Maximum object size allowed to be stored in the writecache.                                                                   |
 | `flush_worker_count`        | `int`      | `20`          | Amount of background workers that move data from the writecache to the blobstor.                                              |
 | `max_flushing_objects_size` | `size`     | `512M`        | Max total size of background flushing objects.                                                                                |
-| `max_batch_size`            | `int`      | `1000`        | Maximum amount of small object `PUT` operations to perform in a single transaction.                                           |
-| `max_batch_delay`           | `duration` | `10ms`        | Maximum delay before a batch starts.                                                                                          |
-| `page_size`                 | `size`     | `0`           | Page size overrides the default OS page size for small objects storage. Does not affect the existing storage.                 |
 
 
 # `node` section

pkg/local_object_storage/writecache/benchmark/writecache_test.go

@@ -118,6 +118,5 @@ func newCache(b *testing.B) writecache.Cache {
 		writecache.WithBlobstor(bs),
 		writecache.WithMetabase(testMetabase{}),
 		writecache.WithMaxCacheSize(256<<30),
-		writecache.WithSmallObjectSize(128<<10),
 	)
 }

pkg/local_object_storage/writecache/cache.go

@@ -11,7 +11,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"go.etcd.io/bbolt"
 	"go.uber.org/zap"
 )
 
@@ -43,7 +42,6 @@ type objectInfo struct {
 
 const (
 	defaultMaxObjectSize = 64 * 1024 * 1024 // 64 MiB
-	defaultSmallObjectSize = 32 * 1024        // 32 KiB
 	defaultMaxCacheSize  = 1 << 30          // 1 GiB
 )
 
@@ -62,11 +60,8 @@ func New(opts ...Option) Cache {
 		options: options{
 			log:            &logger.Logger{Logger: zap.NewNop()},
 			maxObjectSize:  defaultMaxObjectSize,
-			smallObjectSize: defaultSmallObjectSize,
 			workersCount:   defaultFlushWorkersCount,
 			maxCacheSize:   defaultMaxCacheSize,
-			maxBatchSize:    bbolt.DefaultMaxBatchSize,
-			maxBatchDelay:   bbolt.DefaultMaxBatchDelay,
 			metrics:        DefaultMetrics(),
 			flushSizeLimit: defaultFlushWorkersCount * defaultMaxObjectSize,
 		},

pkg/local_object_storage/writecache/flush.go

@@ -253,7 +253,7 @@ func (c *cache) flushAndDropBBoltDB(ctx context.Context) error {
 	if err != nil {
 		return fmt.Errorf("could not check write-cache database existence: %w", err)
 	}
-	db, err := OpenDB(c.path, true, os.OpenFile, c.pageSize)
+	db, err := OpenDB(c.path, true, os.OpenFile)
 	if err != nil {
 		return fmt.Errorf("could not open write-cache database: %w", err)
 	}

pkg/local_object_storage/writecache/flush_test.go

@@ -25,12 +25,11 @@ import (
 func TestFlush(t *testing.T) {
 	testlogger := test.NewLogger(t)
 
-	createCacheFn := func(t *testing.T, smallSize uint64, mb *meta.DB, bs MainStorage, opts ...Option) Cache {
+	createCacheFn := func(t *testing.T, mb *meta.DB, bs MainStorage, opts ...Option) Cache {
 		return New(
 			append([]Option{
 				WithLogger(testlogger),
 				WithPath(filepath.Join(t.TempDir(), "writecache")),
-				WithSmallObjectSize(smallSize),
 				WithMetabase(mb),
 				WithBlobstor(bs),
 				WithDisableBackgroundFlush(),
@@ -92,7 +91,6 @@ const (
 
 type CreateCacheFunc[Option any] func(
 	t *testing.T,
-	smallSize uint64,
 	meta *meta.DB,
 	bs MainStorage,
 	opts ...Option,
@@ -115,7 +113,7 @@ func runFlushTest[Option any](
 	failures ...TestFailureInjector[Option],
 ) {
 	t.Run("no errors", func(t *testing.T) {
-		wc, bs, mb := newCache(t, createCacheFn, smallSize)
+		wc, bs, mb := newCache(t, createCacheFn)
 		defer func() { require.NoError(t, wc.Close()) }()
 		objects := putObjects(t, wc)
 
@@ -128,7 +126,7 @@ func runFlushTest[Option any](
 	})
 
 	t.Run("flush on moving to degraded mode", func(t *testing.T) {
-		wc, bs, mb := newCache(t, createCacheFn, smallSize)
+		wc, bs, mb := newCache(t, createCacheFn)
 		defer func() { require.NoError(t, wc.Close()) }()
 		objects := putObjects(t, wc)
 
@@ -146,7 +144,7 @@ func runFlushTest[Option any](
 		for _, f := range failures {
 			t.Run(f.Desc, func(t *testing.T) {
 				errCountOpt, errCount := errCountOption()
-				wc, bs, mb := newCache(t, createCacheFn, smallSize, errCountOpt)
+				wc, bs, mb := newCache(t, createCacheFn, errCountOpt)
 				defer func() { require.NoError(t, wc.Close()) }()
 				objects := putObjects(t, wc)
 				f.InjectFn(t, wc)
@@ -168,7 +166,6 @@ func runFlushTest[Option any](
 func newCache[Option any](
 	t *testing.T,
 	createCacheFn CreateCacheFunc[Option],
-	smallSize uint64,
 	opts ...Option,
 ) (Cache, *blobstor.BlobStor, *meta.DB) {
 	dir := t.TempDir()
@@ -189,7 +186,7 @@ func newCache[Option any](
 	require.NoError(t, bs.Open(context.Background(), mode.ReadWrite))
 	require.NoError(t, bs.Init())
 
-	wc := createCacheFn(t, smallSize, mb, bs, opts...)
+	wc := createCacheFn(t, mb, bs, opts...)
 	require.NoError(t, wc.Open(context.Background(), mode.ReadWrite))
 	require.NoError(t, wc.Init())
 

pkg/local_object_storage/writecache/options.go

@@ -1,8 +1,6 @@
 package writecache
 
 import (
-	"time"
-
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 	"go.uber.org/zap"
 )
@@ -20,8 +18,6 @@ type options struct {
 	metabase Metabase
 	// maxObjectSize is the maximum size of the object stored in the write-cache.
 	maxObjectSize uint64
-	// smallObjectSize is the maximum size of the object stored in the database.
-	smallObjectSize uint64
 	// workersCount is the number of workers flushing objects in parallel.
 	workersCount int
 	// maxCacheSize is the maximum total size of all objects saved in cache (DB + FS).
@@ -30,10 +26,6 @@ type options struct {
 	// maxCacheCount is the maximum total count of all object saved in cache.
 	// 0 (no limit) by default.
 	maxCacheCount uint64
-	// maxBatchSize is the maximum batch size for the small object database.
-	maxBatchSize int
-	// maxBatchDelay is the maximum batch wait time for the small object database.
-	maxBatchDelay time.Duration
 	// noSync is true iff FSTree allows unsynchronized writes.
 	noSync bool
 	// reportError is the function called when encountering disk errors in background workers.
@@ -42,8 +34,6 @@ type options struct {
 	metrics Metrics
 	// disableBackgroundFlush is for testing purposes only.
 	disableBackgroundFlush bool
-	// pageSize is bbolt's page size config value
-	pageSize int
 	// flushSizeLimit is total size of flushing objects.
 	flushSizeLimit uint64
 }
@@ -85,15 +75,6 @@ func WithMaxObjectSize(sz uint64) Option {
 	}
 }
 
-// WithSmallObjectSize sets maximum object size to be stored in write-cache.
-func WithSmallObjectSize(sz uint64) Option {
-	return func(o *options) {
-		if sz > 0 {
-			o.smallObjectSize = sz
-		}
-	}
-}
-
 func WithFlushWorkersCount(c int) Option {
 	return func(o *options) {
 		if c > 0 {
@@ -116,24 +97,6 @@ func WithMaxCacheCount(v uint64) Option {
 	}
 }
 
-// WithMaxBatchSize sets max batch size for the small object database.
-func WithMaxBatchSize(sz int) Option {
-	return func(o *options) {
-		if sz > 0 {
-			o.maxBatchSize = sz
-		}
-	}
-}
-
-// WithMaxBatchDelay sets max batch delay for the small object database.
-func WithMaxBatchDelay(d time.Duration) Option {
-	return func(o *options) {
-		if d > 0 {
-			o.maxBatchDelay = d
-		}
-	}
-}
-
 // WithNoSync sets an option to allow returning to caller on PUT before write is persisted.
 // Note, that we use this flag for FSTree only and DO NOT use it for a bolt DB because
 // we cannot yet properly handle the corrupted database during the startup. This SHOULD NOT
@@ -165,13 +128,6 @@ func WithDisableBackgroundFlush() Option {
 	}
 }
 
-// WithPageSize sets bbolt's page size.
-func WithPageSize(s int) Option {
-	return func(o *options) {
-		o.pageSize = s
-	}
-}
-
 // WithFlushSizeLimit sets flush size limit.
 func WithFlushSizeLimit(v uint64) Option {
 	return func(o *options) {

pkg/local_object_storage/writecache/util.go

@@ -10,12 +10,11 @@ import (
 )
 
 // OpenDB opens BoltDB instance for write-cache. Opens in read-only mode if ro is true.
-func OpenDB(p string, ro bool, openFile func(string, int, fs.FileMode) (*os.File, error), pageSize int) (*bbolt.DB, error) {
+func OpenDB(p string, ro bool, openFile func(string, int, fs.FileMode) (*os.File, error)) (*bbolt.DB, error) {
 	return bbolt.Open(filepath.Join(p, dbName), os.ModePerm, &bbolt.Options{
 		NoFreelistSync: true,
 		ReadOnly:       ro,
 		Timeout:        100 * time.Millisecond,
 		OpenFile:       openFile,
-		PageSize:       pageSize,
 	})
 }