org.apache.flink.runtime.highavailability.nonha

Class AbstractNonHaServices

java.lang.Object

org.apache.flink.runtime.highavailability.nonha.AbstractNonHaServices

All Implemented Interfaces:

AutoCloseable, GloballyCleanableResource, ClientHighAvailabilityServices, HighAvailabilityServices

Direct Known Subclasses:

EmbeddedHaServices, StandaloneHaServices

public abstract class AbstractNonHaServices
extends Object
implements HighAvailabilityServices

Abstract base class for non high-availability services.

This class returns the standalone variants for the checkpoint recovery factory, the submitted job graph store, the running jobs registry and the blob store.

Field Summary

Fields

Modifier and Type	Field and Description
protected Object	lock

Fields inherited from interface org.apache.flink.runtime.highavailability.HighAvailabilityServices

DEFAULT_JOB_ID, DEFAULT_LEADER_ID

Constructor Summary

Constructors

Constructor and Description
AbstractNonHaServices()

Method Summary

Modifier and Type	Method and Description
protected void	checkNotShutdown()
void	cleanupAllData() Deletes all data stored by high availability services in external stores.
void	close() Closes the high availability services, releasing all resources.
BlobStore	createBlobStore() Creates the BLOB store in which BLOBs are stored in a highly-available fashion.
CheckpointRecoveryFactory	getCheckpointRecoveryFactory() Gets the checkpoint recovery factory for the job manager.
JobGraphStore	getJobGraphStore() Gets the submitted job graph store for the job manager.
JobResultStore	getJobResultStore() Gets the store that holds information about the state of finished jobs.
protected boolean	isShutDown()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.runtime.highavailability.HighAvailabilityServices

closeWithOptionalClean, getClusterRestEndpointLeaderElection, getClusterRestEndpointLeaderRetriever, getDispatcherLeaderElection, getDispatcherLeaderRetriever, getJobManagerLeaderElection, getJobManagerLeaderRetriever, getJobManagerLeaderRetriever, getResourceManagerLeaderElection, getResourceManagerLeaderRetriever, getWebMonitorLeaderElection, getWebMonitorLeaderRetriever, globalCleanupAsync

Field Detail

lock

protected final Object lock

Constructor Detail

AbstractNonHaServices

public AbstractNonHaServices()

Method Detail

getCheckpointRecoveryFactory

public CheckpointRecoveryFactory getCheckpointRecoveryFactory()

Description copied from interface: HighAvailabilityServices

Gets the checkpoint recovery factory for the job manager.

Specified by:

getCheckpointRecoveryFactory in interface HighAvailabilityServices

Returns:

Checkpoint recovery factory

getJobGraphStore

public JobGraphStore getJobGraphStore()
                               throws Exception

Description copied from interface: HighAvailabilityServices

Gets the submitted job graph store for the job manager.

Specified by:

getJobGraphStore in interface HighAvailabilityServices

Returns:

Submitted job graph store

Throws:

Exception - if the submitted job graph store could not be created

getJobResultStore

public JobResultStore getJobResultStore()
                                 throws Exception

Description copied from interface: HighAvailabilityServices

Gets the store that holds information about the state of finished jobs.

Specified by:

getJobResultStore in interface HighAvailabilityServices

Returns:

Store of finished job results

Throws:

Exception - if job result store could not be created

createBlobStore

public BlobStore createBlobStore()
                          throws IOException

Description copied from interface: HighAvailabilityServices

Creates the BLOB store in which BLOBs are stored in a highly-available fashion.

Specified by:

createBlobStore in interface HighAvailabilityServices

Returns:

Blob store

Throws:

IOException - if the blob store could not be created

close

public void close()
           throws Exception

Description copied from interface: HighAvailabilityServices

Closes the high availability services, releasing all resources.

This method does not delete or clean up any data stored in external stores (file systems, ZooKeeper, etc). Another instance of the high availability services will be able to recover the job.

If an exception occurs during closing services, this method will attempt to continue closing other services and report exceptions only after all services have been attempted to be closed.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface HighAvailabilityServices

Throws:

Exception - Thrown, if an exception occurred while closing these services.

cleanupAllData

public void cleanupAllData()
                    throws Exception

Description copied from interface: HighAvailabilityServices

Deletes all data stored by high availability services in external stores.

After this method was called, any job or session that was managed by these high availability services will be unrecoverable.

If an exception occurs during cleanup, this method will attempt to continue the cleanup and report exceptions only after all cleanup steps have been attempted.

Specified by:

cleanupAllData in interface HighAvailabilityServices

Throws:

Exception - if an error occurred while cleaning up data stored by them.

checkNotShutdown

protected void checkNotShutdown()

isShutDown

protected boolean isShutDown()