forked from TrueCloudLab/frostfs-node
156 lines
4 KiB
Go
156 lines
4 KiB
Go
package blobstor
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import (
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"sync"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/compression"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
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objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
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"go.uber.org/zap"
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)
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// SubStorage represents single storage component with some storage policy.
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type SubStorage struct {
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Storage common.Storage
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Policy func(*objectSDK.Object, []byte) bool
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}
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// BlobStor represents FrostFS local BLOB storage.
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type BlobStor struct {
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cfg
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modeMtx sync.RWMutex
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mode mode.Mode
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}
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// Info contains information about blobstor.
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type Info struct {
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SubStorages []SubStorageInfo
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}
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// SubStorageInfo contains information about blobstor storage component.
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type SubStorageInfo struct {
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Type string
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Path string
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}
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// Option represents BlobStor's constructor option.
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type Option func(*cfg)
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type cfg struct {
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compression compression.Config
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log *logger.Logger
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storage []SubStorage
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metrics Metrics
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}
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func initConfig(c *cfg) {
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c.log = &logger.Logger{Logger: zap.L()}
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c.metrics = &noopMetrics{}
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}
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// New creates, initializes and returns new BlobStor instance.
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func New(opts ...Option) *BlobStor {
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bs := new(BlobStor)
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bs.mode = mode.Disabled
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initConfig(&bs.cfg)
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for i := range opts {
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opts[i](&bs.cfg)
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}
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for i := range bs.storage {
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bs.storage[i].Storage.SetCompressor(&bs.compression)
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}
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return bs
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}
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// SetLogger sets logger. It is used after the shard ID was generated to use it in logs.
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func (b *BlobStor) SetLogger(l *logger.Logger) {
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b.log = l
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}
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func (b *BlobStor) SetParentID(parentID string) {
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b.metrics.SetParentID(parentID)
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for _, ss := range b.storage {
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ss.Storage.SetParentID(parentID)
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}
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}
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// WithStorages provides sub-blobstors.
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func WithStorages(st []SubStorage) Option {
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return func(c *cfg) {
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c.storage = st
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}
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}
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// WithLogger returns option to specify BlobStor's logger.
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func WithLogger(l *logger.Logger) Option {
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return func(c *cfg) {
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c.log = &logger.Logger{Logger: l.With(zap.String("component", "BlobStor"))}
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}
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}
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// WithCompressObjects returns option to toggle
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// compression of the stored objects.
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//
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// If true, Zstandard algorithm is used for data compression.
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//
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// If compressor (decompressor) creation failed,
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// the uncompressed option will be used, and the error
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// is recorded in the provided log.
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func WithCompressObjects(comp bool) Option {
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return func(c *cfg) {
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c.compression.Enabled = comp
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}
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}
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// WithCompressibilityEstimate returns an option to use
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// normilized compressibility estimate to decide compress
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// data or not.
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//
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// See https://github.com/klauspost/compress/blob/v1.17.2/compressible.go#L5
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func WithCompressibilityEstimate(v bool) Option {
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return func(c *cfg) {
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c.compression.UseCompressEstimation = v
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}
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}
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// WithCompressibilityEstimateThreshold returns an option to set
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// normilized compressibility estimate threshold.
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//
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// See https://github.com/klauspost/compress/blob/v1.17.2/compressible.go#L5
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func WithCompressibilityEstimateThreshold(threshold float64) Option {
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return func(c *cfg) {
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c.compression.CompressEstimationThreshold = threshold
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}
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}
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// WithUncompressableContentTypes returns option to disable decompression
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// for specific content types as seen by object.AttributeContentType attribute.
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func WithUncompressableContentTypes(values []string) Option {
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return func(c *cfg) {
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c.compression.UncompressableContentTypes = values
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}
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}
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// SetReportErrorFunc allows to provide a function to be called on disk errors.
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// This function MUST be called before Open.
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func (b *BlobStor) SetReportErrorFunc(f func(string, error)) {
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for i := range b.storage {
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b.storage[i].Storage.SetReportErrorFunc(f)
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}
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}
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func WithMetrics(m Metrics) Option {
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return func(c *cfg) {
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c.metrics = m
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}
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}
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func (b *BlobStor) Compressor() *compression.Config {
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return &b.cfg.compression
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}
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