org.apache.flink.runtime.checkpoint

Class ZooKeeperCheckpointRecoveryFactory

java.lang.Object

org.apache.flink.runtime.checkpoint.ZooKeeperCheckpointRecoveryFactory

All Implemented Interfaces:

CheckpointRecoveryFactory

public class ZooKeeperCheckpointRecoveryFactory
extends Object
implements CheckpointRecoveryFactory

CheckpointCoordinator components in HighAvailabilityMode.ZOOKEEPER.

Constructor Summary

Constructors

Constructor and Description
ZooKeeperCheckpointRecoveryFactory(org.apache.flink.shaded.curator5.org.apache.curator.framework.CuratorFramework client, Configuration config, Executor executor)

Method Summary

Modifier and Type	Method and Description
CheckpointIDCounter	createCheckpointIDCounter(JobID jobID) Creates a CheckpointIDCounter instance for a job.
CompletedCheckpointStore	createRecoveredCompletedCheckpointStore(JobID jobId, int maxNumberOfCheckpointsToRetain, SharedStateRegistryFactory sharedStateRegistryFactory, Executor ioExecutor, RestoreMode restoreMode) Creates a RECOVERED CompletedCheckpointStore instance for a job.

Methods inherited from class java.lang.Object

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

Constructor Detail

ZooKeeperCheckpointRecoveryFactory

public ZooKeeperCheckpointRecoveryFactory(org.apache.flink.shaded.curator5.org.apache.curator.framework.CuratorFramework client,
                                          Configuration config,
                                          Executor executor)

Method Detail

createRecoveredCompletedCheckpointStore

public CompletedCheckpointStore createRecoveredCompletedCheckpointStore(JobID jobId,
                                                                        int maxNumberOfCheckpointsToRetain,
                                                                        SharedStateRegistryFactory sharedStateRegistryFactory,
                                                                        Executor ioExecutor,
                                                                        RestoreMode restoreMode)
                                                                 throws Exception

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

Throws:

Exception

createCheckpointIDCounter

public CheckpointIDCounter createCheckpointIDCounter(JobID jobID)
                                              throws Exception

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

Throws:

Exception