logstream

package
v0.20.0 Latest Latest
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 Go to latest Published: Mar 5, 2024 License: Apache-2.0 Imports: 29 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	DefaultSequenceQueueCapacity        = 1024
	DefaultWriteQueueCapacity           = 1024
	DefaultCommitQueueCapacity          = 1024
	DefaultReplicateClientQueueCapacity = 1024
	DefaultSyncTimeout                  = 10 * time.Second
)

Variables

This section is empty.

Functions

func TestGetReportCommitBase added in v0.14.0 

func TestGetReportCommitBase(t *testing.T, lse *Executor) (commitVersion types.Version, highWatermark types.GLSN, uncommittedBegin varlogpb.LogSequenceNumber, invalid bool)

func TestGetStorage added in v0.7.0 

func TestGetStorage(t *testing.T, lse *Executor) *storage.Storage

func TestGetUncommittedLLSNEnd added in v0.14.0 

func TestGetUncommittedLLSNEnd(t *testing.T, lse *Executor) types.LLSN

func TestNewBatchData 

func TestNewBatchData(tb testing.TB, batchLen int, msgSize int) [][]byte

func TestNewReplicateServer 

func TestNewReplicateServer(t *testing.T, mock *mock.MockReplicatorServer) (server snpb.ReplicatorServer, rpcConn *rpc.Conn, closer func())

func TestNewReplicatorClient added in v0.5.0 

func TestNewReplicatorClient(t *testing.T, addr string) (snpb.ReplicatorClient, func())

Types

type AppendTask added in v0.14.0 

type AppendTask struct {
	// contains filtered or unexported fields
}

func NewAppendTask added in v0.14.0 

func NewAppendTask() *AppendTask

func (*AppendTask) Release added in v0.14.0 

func (at *AppendTask) Release()

func (*AppendTask) ReleaseWriteWaitGroups added in v0.14.0 

func (at *AppendTask) ReleaseWriteWaitGroups()

func (*AppendTask) SetError added in v0.14.0 

func (at *AppendTask) SetError(err error)

func (*AppendTask) WaitForCompletion added in v0.14.0 

func (at *AppendTask) WaitForCompletion(ctx context.Context) (res []snpb.AppendResult, err error)

type Executor 

type Executor struct {
	// contains filtered or unexported fields
}

func NewExecutor 

func NewExecutor(opts ...ExecutorOption) (lse *Executor, err error)

func (*Executor) Append 

func (lse *Executor) Append(ctx context.Context, dataBatch [][]byte) ([]snpb.AppendResult, error)

Append appends a batch of logs to the log stream.

func (*Executor) AppendAsync added in v0.14.0 

func (lse *Executor) AppendAsync(ctx context.Context, dataBatch [][]byte, appendTask *AppendTask) error

func (*Executor) Close 

func (lse *Executor) Close() (err error)

func (*Executor) Commit 

func (lse *Executor) Commit(ctx context.Context, commitResult snpb.LogStreamCommitResult) error

func (*Executor) Metadata 

func (lse *Executor) Metadata() (snpb.LogStreamReplicaMetadataDescriptor, error)

func (*Executor) Metrics 

func (lse *Executor) Metrics() *telemetry.LogStreamMetrics

func (*Executor) Path added in v0.5.0 

func (lse *Executor) Path() string

Path returns the data directory where the replica stores its data.

func (*Executor) Replicate 

func (lse *Executor) Replicate(ctx context.Context, llsnList []types.LLSN, dataList [][]byte) error

func (*Executor) Report 

func (lse *Executor) Report(_ context.Context) (report snpb.LogStreamUncommitReport, err error)

func (*Executor) Seal 

func (lse *Executor) Seal(_ context.Context, lastCommittedGLSN types.GLSN) (status varlogpb.LogStreamStatus, localHWM types.GLSN, err error)

Seal checks whether the log stream replica has committed the log entry confirmed lastly by the metadata repository. Since Trim can remove the last log entry, Seal compares the argument lastCommittedGLSN to the uncommittedBegin of the log stream context instead of the local high watermark.

FIXME: No need to return localHWM.

func (*Executor) SubscribeWithGLSN 

func (lse *Executor) SubscribeWithGLSN(begin, end types.GLSN) (*SubscribeResult, error)

SubscribeWithGLSN subscribes to the log stream with the given range of GLSNs. TODO: The first argument ctx may not be necessary, since the subscription can be stopped by the `internal/varlogsn/logstream.(*SubscribeResult).Stop()`.

func (*Executor) SubscribeWithLLSN 

func (lse *Executor) SubscribeWithLLSN(begin, end types.LLSN) (*SubscribeResult, error)

SubscribeWithLLSN subscribes to the log stream with the given range of LLSNs. TODO: The first argument ctx may not be necessary, since the subscription can be stopped by the `internal/varlogsn/logstream.(*SubscribeResult).Stop()`.

func (*Executor) Sync 

func (lse *Executor) Sync(ctx context.Context, dstReplica varlogpb.LogStreamReplica) (*snpb.SyncStatus, error)

func (*Executor) SyncInit 

func (lse *Executor) SyncInit(_ context.Context, srcReplica varlogpb.LogStreamReplica, srcRange snpb.SyncRange, srcLastCommittedLLSN types.LLSN) (syncRange snpb.SyncRange, err error)

func (*Executor) SyncReplicate 

func (lse *Executor) SyncReplicate(_ context.Context, srcReplica varlogpb.LogStreamReplica, payload snpb.SyncPayload) (err error)

func (*Executor) Trim 

func (lse *Executor) Trim(_ context.Context, glsn types.GLSN) error

func (*Executor) Unseal 

func (lse *Executor) Unseal(_ context.Context, replicas []varlogpb.LogStreamReplica) (err error)

type ExecutorOption 

type ExecutorOption interface {
	// contains filtered or unexported methods
}

func WithAdvertiseAddress 

func WithAdvertiseAddress(advertiseAddress string) ExecutorOption

func WithClusterID 

func WithClusterID(cid types.ClusterID) ExecutorOption

func WithCommitQueueCapacity 

func WithCommitQueueCapacity(commitQueueCapacity int) ExecutorOption

func WithLogStreamID 

func WithLogStreamID(lsid types.LogStreamID) ExecutorOption

func WithLogStreamMetrics 

func WithLogStreamMetrics(lsm *telemetry.LogStreamMetrics) ExecutorOption

func WithLogger 

func WithLogger(logger *zap.Logger) ExecutorOption

func WithReplicateClientGRPCOptions 

func WithReplicateClientGRPCOptions(replicateClientGRPCOptions ...grpc.DialOption) ExecutorOption

func WithReplicateClientQueueCapacity 

func WithReplicateClientQueueCapacity(replicateClientQueueCapacity int) ExecutorOption

func WithSequenceQueueCapacity 

func WithSequenceQueueCapacity(sequenceQueueCapacity int) ExecutorOption

func WithStorage 

func WithStorage(stg *storage.Storage) ExecutorOption

func WithStorageNodeID 

func WithStorageNodeID(snid types.StorageNodeID) ExecutorOption

func WithSyncTimeout added in v0.7.0 

func WithSyncTimeout(syncTimeout time.Duration) ExecutorOption

WithSyncTimeout sets timeout for synchronization in the destination replica. If the destination replica doesn't receive the SyncReplicate RPC within syncTimeout, other SyncInit RPC can cancel the synchronization.

func WithTopicID 

func WithTopicID(tpid types.TopicID) ExecutorOption

func WithWriteQueueCapacity 

func WithWriteQueueCapacity(writeQueueCapacity int) ExecutorOption

type SubscribeResult 

type SubscribeResult struct {
	// contains filtered or unexported fields
}

func (*SubscribeResult) Err 

func (sr *SubscribeResult) Err() error

Err returns the error of the subscription. This should be called after Stop is called.

func (*SubscribeResult) Result 

func (sr *SubscribeResult) Result() <-chan varlogpb.LogEntry

Result returns the channel of the result.

func (*SubscribeResult) Stop 

func (sr *SubscribeResult) Stop()

Stop stops the subscription. This should be called to release resources after using SubscribeResult.

Source Files

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