forked from TrueCloudLab/frostfs-node
78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
package shard
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import (
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"context"
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"fmt"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
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"github.com/mr-tron/base58"
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"go.uber.org/zap"
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)
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// ID represents Shard identifier.
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//
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// Each shard should have the unique ID within
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// a single instance of local storage.
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type ID []byte
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// NewIDFromBytes constructs ID from byte slice.
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func NewIDFromBytes(v []byte) *ID {
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return (*ID)(&v)
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}
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func (id ID) String() string {
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return base58.Encode(id)
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}
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// ID returns Shard identifier.
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func (s *Shard) ID() *ID {
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return s.info.ID
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}
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// UpdateID reads shard ID saved in the metabase and updates it if it is missing.
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func (s *Shard) UpdateID(ctx context.Context) (err error) {
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var metabaseOpened bool
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var idFromMetabase []byte
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if err = s.metaBase.Open(ctx, false); err != nil {
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err = fmt.Errorf("failed to open metabase: %w", err)
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} else {
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metabaseOpened = true
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}
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if metabaseOpened {
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defer func() {
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cErr := s.metaBase.Close()
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if cErr != nil {
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err = fmt.Errorf("failed to close metabase: %w", cErr)
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}
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}()
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if idFromMetabase, err = s.metaBase.ReadShardID(); err != nil {
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err = fmt.Errorf("failed to read shard id from metabase: %w", err)
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}
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}
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if len(idFromMetabase) != 0 {
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s.info.ID = NewIDFromBytes(idFromMetabase)
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}
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if s.cfg.metricsWriter != nil {
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s.cfg.metricsWriter.SetShardID(s.info.ID.String())
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}
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s.log = &logger.Logger{Logger: s.log.With(zap.Stringer("shard_id", s.info.ID))}
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s.metaBase.SetLogger(s.log)
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s.blobStor.SetLogger(s.log)
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if s.hasWriteCache() {
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s.writeCache.SetLogger(s.log)
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}
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s.metaBase.SetParentID(s.info.ID.String())
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s.blobStor.SetParentID(s.info.ID.String())
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if s.pilorama != nil {
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s.pilorama.SetParentID(s.info.ID.String())
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}
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if len(idFromMetabase) == 0 && metabaseOpened {
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if err = s.metaBase.WriteShardID(*s.info.ID); err != nil {
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err = fmt.Errorf("failed to write shard id to metabase: %w", err)
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}
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}
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return
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}
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