Package org.apache.flink.runtime.scheduler.adaptivebatch

Interface BatchJobRecoveryHandler

All Known Implementing Classes:

DefaultBatchJobRecoveryHandler, DummyBatchJobRecoveryHandler

public interface BatchJobRecoveryHandler

Interface for handling batch job recovery.

Method Summary

Modifier and Type	Method	Description
void	initialize(BatchJobRecoveryContext batchJobRecoveryContext)	Initializes the recovery handler with the batch job recovery context.
boolean	isRecovering()	Determines whether the job is recovering.
boolean	needRecover()	Determines whether the job needs to undergo recovery.
void	onExecutionFinished(ExecutionVertexID executionVertexId)	Records the execution vertex finished event for use during future batch job recovery.
void	onExecutionJobVertexInitialization(JobVertexID jobVertexId, int parallelism, Map<IntermediateDataSetID,JobVertexInputInfo> jobVertexInputInfos)	Records the job vertex initialization event for use during future batch job recovery.
void	onExecutionVertexReset(Collection<ExecutionVertexID> vertices)	Handles the reset event for a collection of execution vertices and records the event for use during future batch job recovery.
void	startRecovering()	Starts the recovery process.
void	stop(boolean cleanUp)	Stops the job recovery handler and optionally clean up.

Method Details

initialize

void initialize(BatchJobRecoveryContext batchJobRecoveryContext)

Initializes the recovery handler with the batch job recovery context.

startRecovering

void startRecovering()

Starts the recovery process.

stop

void stop(boolean cleanUp)

Stops the job recovery handler and optionally clean up.

Parameters:

cleanUp - whether to clean up.

needRecover

boolean needRecover()

Determines whether the job needs to undergo recovery.

isRecovering

boolean isRecovering()

Determines whether the job is recovering.

onExecutionVertexReset

void onExecutionVertexReset(Collection<ExecutionVertexID> vertices)

Handles the reset event for a collection of execution vertices and records the event for use during future batch job recovery.

Parameters:

vertices - a collection of execution vertex IDs that have been reset.

onExecutionJobVertexInitialization

void onExecutionJobVertexInitialization(JobVertexID jobVertexId,
 int parallelism,
 Map<IntermediateDataSetID,JobVertexInputInfo> jobVertexInputInfos)

Records the job vertex initialization event for use during future batch job recovery.

Parameters:

jobVertexId - the id of the job vertex being initialized.

parallelism - the parallelism of the job vertex.

jobVertexInputInfos - a map of intermediate dataset IDs to job vertex input info.

onExecutionFinished

void onExecutionFinished(ExecutionVertexID executionVertexId)

Records the execution vertex finished event for use during future batch job recovery.

Parameters:

executionVertexId - the id of the execution vertex is finished.