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