Package org.apache.flink.runtime.checkpoint

Interface CheckpointRecoveryFactory

All Known Implementing Classes:

PerJobCheckpointRecoveryFactory, StandaloneCheckpointRecoveryFactory, ZooKeeperCheckpointRecoveryFactory

public interface CheckpointRecoveryFactory

A factory for per Job checkpoint recovery components.

Method Summary

Modifier and Type	Method	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.RecoveryClaimMode recoveryClaimMode)	Creates a RECOVERED CompletedCheckpointStore instance for a job.

Method Detail

createRecoveredCompletedCheckpointStore

CompletedCheckpointStore createRecoveredCompletedCheckpointStore(org.apache.flink.api.common.JobID jobId,
                                                                 int maxNumberOfCheckpointsToRetain,
                                                                 SharedStateRegistryFactory sharedStateRegistryFactory,
                                                                 Executor ioExecutor,
                                                                 org.apache.flink.core.execution.RecoveryClaimMode recoveryClaimMode)
                                                          throws Exception

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.

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.

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

Returns:

CompletedCheckpointStore instance for the job

Throws:

Exception

createCheckpointIDCounter

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

Creates a CheckpointIDCounter instance for a job.

Parameters:

jobId - Job ID to recover checkpoints for

Returns:

CheckpointIDCounter instance for the job

Throws:

Exception