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refactor: support open shard concurrently
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| package procedure | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "github.com/CeresDB/ceresmeta/pkg/log" | ||
| "github.com/CeresDB/ceresmeta/server/storage" | ||
| "github.com/pkg/errors" | ||
| "go.uber.org/zap" | ||
| "golang.org/x/sync/errgroup" | ||
| "sync" | ||
| ) | ||
|
|
||
| type BatchProcedure struct { | ||
| id uint64 | ||
| typ Typ | ||
| batch []Procedure | ||
| relatedVersionInfo RelatedVersionInfo | ||
|
|
||
| // Protect the state. | ||
| lock sync.RWMutex | ||
| state State | ||
| } | ||
|
|
||
| func NewBatchProcedure(id uint64, batch []Procedure, typ Typ) (Procedure, error) { | ||
| if len(batch) == 0 { | ||
| return nil, ErrEmptyBatchProcedure | ||
| } | ||
|
|
||
| relateVersionInfo, err := buildRelatedVersionInfo(batch, typ) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| return &BatchProcedure{id: id, batch: batch, state: StateInit, typ: typ, relatedVersionInfo: relateVersionInfo}, nil | ||
| } | ||
|
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| func buildRelatedVersionInfo(batch []Procedure, typ Typ) (RelatedVersionInfo, error) { | ||
| if len(batch) == 0 { | ||
| return RelatedVersionInfo{}, nil | ||
| } | ||
|
|
||
| result := RelatedVersionInfo{ | ||
| ClusterID: batch[0].RelatedVersionInfo().ClusterID, | ||
| ShardWithVersion: map[storage.ShardID]uint64{}, | ||
| ClusterVersion: batch[0].RelatedVersionInfo().ClusterVersion, | ||
| } | ||
|
|
||
| // The version of this batch of procedures must be the same. | ||
| for _, p := range batch { | ||
| if p.Typ() != typ { | ||
| return RelatedVersionInfo{}, errors.WithMessage(ErrMergeBatchProcedure, "procedure type in the same batch is inconsistent") | ||
| } | ||
| if p.RelatedVersionInfo().ClusterID != result.ClusterID { | ||
| return RelatedVersionInfo{}, errors.WithMessage(ErrMergeBatchProcedure, "procedure clusterID in the same batch is inconsistent") | ||
| } | ||
| if p.RelatedVersionInfo().ClusterVersion != result.ClusterVersion { | ||
| return RelatedVersionInfo{}, errors.WithMessage(ErrMergeBatchProcedure, "procedure clusterVersion in the same batch is inconsistent") | ||
| } | ||
| // The ShardVersion of the same shard must be consistent. | ||
| for shardID, version := range p.RelatedVersionInfo().ShardWithVersion { | ||
| if resultVersion, exists := result.ShardWithVersion[shardID]; exists { | ||
| if version != resultVersion { | ||
| return RelatedVersionInfo{}, errors.WithMessage(ErrMergeBatchProcedure, "procedure shardVersion in the same batch is inconsistent") | ||
| } | ||
| } else { | ||
| result.ShardWithVersion[shardID] = version | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return result, nil | ||
| } | ||
|
|
||
| func (p *BatchProcedure) ID() uint64 { | ||
| return p.id | ||
| } | ||
|
|
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| func (p *BatchProcedure) Typ() Typ { | ||
| return p.typ | ||
| } | ||
|
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| func (p *BatchProcedure) Start(ctx context.Context) error { | ||
| // Start with multiple goroutine | ||
| g, _ := errgroup.WithContext(ctx) | ||
| for _, p := range p.batch { | ||
| p := p | ||
| g.Go(func() error { | ||
| err := p.Start(ctx) | ||
| if err != nil { | ||
| log.Error("procedure start failed", zap.Error(err), zap.String("procedure", fmt.Sprintf("%v", p))) | ||
| } | ||
| return err | ||
| }) | ||
| } | ||
|
|
||
| if err := g.Wait(); err != nil { | ||
| return err | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
|
||
| func (p *BatchProcedure) Cancel(_ context.Context) error { | ||
| p.updateStateWithLock(StateCancelled) | ||
| return nil | ||
| } | ||
|
|
||
| func (p *BatchProcedure) State() State { | ||
| return p.state | ||
| } | ||
|
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||
| func (p *BatchProcedure) RelatedVersionInfo() RelatedVersionInfo { | ||
| return p.relatedVersionInfo | ||
| } | ||
|
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| func (p *BatchProcedure) Priority() Priority { | ||
| return p.batch[0].Priority() | ||
| } | ||
|
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| func (p *BatchProcedure) updateStateWithLock(state State) { | ||
| p.lock.Lock() | ||
| defer p.lock.Unlock() | ||
|
|
||
| p.state = state | ||
| } |
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