131 lines
3.2 KiB
Go
131 lines
3.2 KiB
Go
package writecache
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import (
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"time"
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"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor"
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"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/common"
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meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
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objectSDK "github.com/nspcc-dev/neofs-sdk-go/object"
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"go.uber.org/zap"
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)
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// Option represents write-cache configuration option.
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type Option func(*options)
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// meta is an interface for a metabase.
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type metabase interface {
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Put(meta.PutPrm) (meta.PutRes, error)
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Exists(meta.ExistsPrm) (meta.ExistsRes, error)
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}
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// blob is an interface for the blobstor.
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type blob interface {
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Put(common.PutPrm) (common.PutRes, error)
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NeedsCompression(obj *objectSDK.Object) bool
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Exists(res common.ExistsPrm) (common.ExistsRes, error)
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}
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type options struct {
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log *zap.Logger
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// path is a path to a directory for write-cache.
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path string
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// blobstor is the main persistent storage.
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blobstor blob
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// metabase is the metabase instance.
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metabase metabase
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// maxObjectSize is the maximum size of the object stored in the write-cache.
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maxObjectSize uint64
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// smallObjectSize is the maximum size of the object stored in the database.
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smallObjectSize uint64
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// workersCount is the number of workers flushing objects in parallel.
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workersCount int
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// maxCacheSize is the maximum total size of all objects saved in cache (DB + FS).
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// 1 GiB by default.
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maxCacheSize uint64
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// objCounters contains atomic counters for the number of objects stored in cache.
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objCounters counters
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// maxBatchSize is the maximum batch size for the small object database.
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maxBatchSize int
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// maxBatchDelay is the maximum batch wait time for the small object database.
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maxBatchDelay time.Duration
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}
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// WithLogger sets logger.
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func WithLogger(log *zap.Logger) Option {
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return func(o *options) {
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o.log = log.With(zap.String("component", "WriteCache"))
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}
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}
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// WithPath sets path to writecache db.
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func WithPath(path string) Option {
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return func(o *options) {
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o.path = path
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}
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}
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// WithBlobstor sets main object storage.
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func WithBlobstor(bs *blobstor.BlobStor) Option {
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return func(o *options) {
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o.blobstor = bs
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}
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}
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// WithMetabase sets metabase.
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func WithMetabase(db *meta.DB) Option {
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return func(o *options) {
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o.metabase = db
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}
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}
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// WithMaxObjectSize sets maximum object size to be stored in write-cache.
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func WithMaxObjectSize(sz uint64) Option {
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return func(o *options) {
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if sz > 0 {
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o.maxObjectSize = sz
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}
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}
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}
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// WithSmallObjectSize sets maximum object size to be stored in write-cache.
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func WithSmallObjectSize(sz uint64) Option {
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return func(o *options) {
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if sz > 0 {
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o.smallObjectSize = sz
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}
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}
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}
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func WithFlushWorkersCount(c int) Option {
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return func(o *options) {
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if c > 0 {
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o.workersCount = c
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}
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}
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}
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// WithMaxCacheSize sets maximum write-cache size in bytes.
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func WithMaxCacheSize(sz uint64) Option {
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return func(o *options) {
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o.maxCacheSize = sz
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}
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}
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// WithMaxBatchSize sets max batch size for the small object database.
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func WithMaxBatchSize(sz int) Option {
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return func(o *options) {
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if sz > 0 {
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o.maxBatchSize = sz
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}
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}
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}
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// WithMaxBatchDelay sets max batch delay for the small object database.
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func WithMaxBatchDelay(d time.Duration) Option {
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return func(o *options) {
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if d > 0 {
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o.maxBatchDelay = d
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}
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}
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}
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