org.apache.flink.runtime.checkpoint

Class PerJobCheckpointRecoveryFactory

java.lang.Object

org.apache.flink.runtime.checkpoint.PerJobCheckpointRecoveryFactory

All Implemented Interfaces:

CheckpointRecoveryFactory

public class PerJobCheckpointRecoveryFactory
extends Object
implements CheckpointRecoveryFactory

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

Constructor Summary

Constructors

Constructor and Description
PerJobCheckpointRecoveryFactory(java.util.function.Function<Integer,CompletedCheckpointStore> completedCheckpointStorePerJobFactory, java.util.function.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	createCheckpointStore(org.apache.flink.api.common.JobID jobId, int maxNumberOfCheckpointsToRetain, ClassLoader userClassLoader) Creates a CompletedCheckpointStore instance for a job.
static CheckpointRecoveryFactory	useSameServicesForAllJobs(CompletedCheckpointStore store, CheckpointIDCounter counter)

Methods inherited from class java.lang.Object

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

Constructor Detail

PerJobCheckpointRecoveryFactory

public PerJobCheckpointRecoveryFactory(java.util.function.Function<Integer,CompletedCheckpointStore> completedCheckpointStorePerJobFactory,
                                       java.util.function.Supplier<CheckpointIDCounter> checkpointIDCounterPerJobFactory)

Method Detail

createCheckpointStore

public CompletedCheckpointStore createCheckpointStore(org.apache.flink.api.common.JobID jobId,
                                                      int maxNumberOfCheckpointsToRetain,
                                                      ClassLoader userClassLoader)

Description copied from interface: CheckpointRecoveryFactory

Creates a CompletedCheckpointStore instance for a job.

Specified by:

createCheckpointStore in interface CheckpointRecoveryFactory

Parameters:

jobId - Job ID to recover checkpoints for

maxNumberOfCheckpointsToRetain - Maximum number of checkpoints to retain

userClassLoader - User code class loader of the job

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

useSameServicesForAllJobs

@VisibleForTesting
public static CheckpointRecoveryFactory useSameServicesForAllJobs(CompletedCheckpointStore store,
                                                                                     CheckpointIDCounter counter)