org.apache.flink.runtime.checkpoint

Class PerJobCheckpointRecoveryFactory<T extends CompletedCheckpointStore>

java.lang.Object

org.apache.flink.runtime.checkpoint.PerJobCheckpointRecoveryFactory<T>

All Implemented Interfaces:

CheckpointRecoveryFactory

public class PerJobCheckpointRecoveryFactory<T extends CompletedCheckpointStore>
extends Object
implements CheckpointRecoveryFactory

Simple CheckpointRecoveryFactory which creates and keeps separate CompletedCheckpointStore and CheckpointIDCounter for each JobID.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	PerJobCheckpointRecoveryFactory.CheckpointStoreRecoveryHelper<StoreType extends CompletedCheckpointStore> Restores or creates a CompletedCheckpointStore, optionally using an existing one.

Constructor Summary

Constructors

Constructor and Description
PerJobCheckpointRecoveryFactory(PerJobCheckpointRecoveryFactory.CheckpointStoreRecoveryHelper<T> checkpointStoreRecoveryHelper)
PerJobCheckpointRecoveryFactory(PerJobCheckpointRecoveryFactory.CheckpointStoreRecoveryHelper<T> checkpointStoreRecoveryHelper, Supplier<CheckpointIDCounter> checkpointIDCounterPerJobFactory)

Method Summary

Modifier and Type	Method and Description
CheckpointIDCounter	createCheckpointIDCounter(org.apache.flink.api.common.JobID jobId) Creates a CheckpointIDCounter instance for a job.
CompletedCheckpointStore	createRecoveredCompletedCheckpointStore(org.apache.flink.api.common.JobID jobId, int maxNumberOfCheckpointsToRetain, SharedStateRegistryFactory sharedStateRegistryFactory, Executor ioExecutor, org.apache.flink.core.execution.RestoreMode restoreMode) Creates a RECOVERED CompletedCheckpointStore instance for a job.
static <T extends CompletedCheckpointStore> CheckpointRecoveryFactory	withoutCheckpointStoreRecovery(IntFunction<T> storeFn)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PerJobCheckpointRecoveryFactory

public PerJobCheckpointRecoveryFactory(PerJobCheckpointRecoveryFactory.CheckpointStoreRecoveryHelper<T> checkpointStoreRecoveryHelper)

PerJobCheckpointRecoveryFactory

public PerJobCheckpointRecoveryFactory(PerJobCheckpointRecoveryFactory.CheckpointStoreRecoveryHelper<T> checkpointStoreRecoveryHelper,
                                       Supplier<CheckpointIDCounter> checkpointIDCounterPerJobFactory)

Method Detail

withoutCheckpointStoreRecovery

@VisibleForTesting
public static <T extends CompletedCheckpointStore> CheckpointRecoveryFactory withoutCheckpointStoreRecovery(IntFunction<T> storeFn)

createRecoveredCompletedCheckpointStore

public CompletedCheckpointStore createRecoveredCompletedCheckpointStore(org.apache.flink.api.common.JobID jobId,
                                                                        int maxNumberOfCheckpointsToRetain,
                                                                        SharedStateRegistryFactory sharedStateRegistryFactory,
                                                                        Executor ioExecutor,
                                                                        org.apache.flink.core.execution.RestoreMode restoreMode)

Description copied from interface: CheckpointRecoveryFactory

Creates a RECOVERED CompletedCheckpointStore instance for a job. In this context, RECOVERED means, that if we already have completed checkpoints from previous runs, we should use them as the initial state.

Specified by:

createRecoveredCompletedCheckpointStore in interface CheckpointRecoveryFactory

Parameters:

jobId - Job ID to recover checkpoints for

maxNumberOfCheckpointsToRetain - Maximum number of checkpoints to retain

sharedStateRegistryFactory - Simple factory to produce SharedStateRegistry objects.

ioExecutor - Executor used to run (async) deletes.

restoreMode - the claim mode with which the job is restoring.

Returns:

CompletedCheckpointStore instance for the job

createCheckpointIDCounter

public CheckpointIDCounter createCheckpointIDCounter(org.apache.flink.api.common.JobID jobId)

Description copied from interface: CheckpointRecoveryFactory

Creates a CheckpointIDCounter instance for a job.

Specified by:

createCheckpointIDCounter in interface CheckpointRecoveryFactory

Parameters:

jobId - Job ID to recover checkpoints for

Returns:

CheckpointIDCounter instance for the job