org.apache.flink.kubernetes.highavailability

Class KubernetesCheckpointRecoveryFactory

java.lang.Object

org.apache.flink.kubernetes.highavailability.KubernetesCheckpointRecoveryFactory

All Implemented Interfaces:

CheckpointRecoveryFactory

public class KubernetesCheckpointRecoveryFactory
extends Object
implements CheckpointRecoveryFactory

Factory to create CompletedCheckpointStore and CheckpointIDCounter.

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.
static KubernetesCheckpointRecoveryFactory	withLeadershipValidation(FlinkKubeClient kubeClient, Configuration configuration, Executor executor, String clusterId, Function<JobID,String> function, String lockIdentity)
static KubernetesCheckpointRecoveryFactory	withoutLeadershipValidation(FlinkKubeClient kubeClient, Configuration configuration, Executor executor, String clusterId, Function<JobID,String> function)

Methods inherited from class java.lang.Object

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

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

withLeadershipValidation

public static KubernetesCheckpointRecoveryFactory withLeadershipValidation(FlinkKubeClient kubeClient,
                                                                           Configuration configuration,
                                                                           Executor executor,
                                                                           String clusterId,
                                                                           Function<JobID,String> function,
                                                                           String lockIdentity)

withoutLeadershipValidation

public static KubernetesCheckpointRecoveryFactory withoutLeadershipValidation(FlinkKubeClient kubeClient,
                                                                              Configuration configuration,
                                                                              Executor executor,
                                                                              String clusterId,
                                                                              Function<JobID,String> function)