org.apache.flink.runtime.entrypoint

Class ClusterEntrypoint

java.lang.Object

org.apache.flink.runtime.entrypoint.ClusterEntrypoint

All Implemented Interfaces:

FatalErrorHandler

Direct Known Subclasses:

JobClusterEntrypoint, SessionClusterEntrypoint

public abstract class ClusterEntrypoint
extends Object
implements FatalErrorHandler

Base class for the Flink cluster entry points.

Specialization of this class can be used for the session mode and the per-job mode

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	LOG
protected static int	RUNTIME_FAILURE_RETURN_CODE
protected static int	STARTUP_FAILURE_RETURN_CODE
protected static int	SUCCESS_RETURN_CODE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ClusterEntrypoint(org.apache.flink.configuration.Configuration configuration)

Method Summary

Modifier and Type	Method and Description
protected void	configureFileSystems(org.apache.flink.configuration.Configuration configuration)
protected HighAvailabilityServices	createHaServices(org.apache.flink.configuration.Configuration configuration, Executor executor)
protected HeartbeatServices	createHeartbeatServices(org.apache.flink.configuration.Configuration configuration)
protected MetricRegistryImpl	createMetricRegistry(org.apache.flink.configuration.Configuration configuration)
protected RpcService	createRpcService(org.apache.flink.configuration.Configuration configuration, String bindAddress, String portRange)
CompletableFuture<Boolean>	getTerminationFuture()
protected void	initializeServices(org.apache.flink.configuration.Configuration configuration)
protected SecurityContext	installSecurityContext(org.apache.flink.configuration.Configuration configuration)
protected static org.apache.flink.configuration.Configuration	loadConfiguration(ClusterConfiguration clusterConfiguration)
void	onFatalError(Throwable exception) Being called when a fatal error occurs.
protected static ClusterConfiguration	parseArguments(String[] args)
protected void	runCluster(org.apache.flink.configuration.Configuration configuration)
protected void	shutDown(boolean cleanupHaData)
protected void	startCluster()
protected abstract void	startClusterComponents(org.apache.flink.configuration.Configuration configuration, RpcService rpcService, HighAvailabilityServices highAvailabilityServices, BlobServer blobServer, HeartbeatServices heartbeatServices, MetricRegistry metricRegistry)
protected void	stopClusterComponents(boolean cleanupHaData)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.slf4j.Logger LOG

SUCCESS_RETURN_CODE

protected static final int SUCCESS_RETURN_CODE

See Also:

Constant Field Values

STARTUP_FAILURE_RETURN_CODE

protected static final int STARTUP_FAILURE_RETURN_CODE

See Also:

Constant Field Values

RUNTIME_FAILURE_RETURN_CODE

protected static final int RUNTIME_FAILURE_RETURN_CODE

See Also:

Constant Field Values

Constructor Detail

ClusterEntrypoint

protected ClusterEntrypoint(org.apache.flink.configuration.Configuration configuration)

Method Detail

getTerminationFuture

public CompletableFuture<Boolean> getTerminationFuture()

startCluster

protected void startCluster()

configureFileSystems

protected void configureFileSystems(org.apache.flink.configuration.Configuration configuration)
                             throws Exception

Throws:

Exception

installSecurityContext

protected SecurityContext installSecurityContext(org.apache.flink.configuration.Configuration configuration)
                                          throws Exception

Throws:

Exception

runCluster

protected void runCluster(org.apache.flink.configuration.Configuration configuration)
                   throws Exception

Throws:

Exception

initializeServices

protected void initializeServices(org.apache.flink.configuration.Configuration configuration)
                           throws Exception

Throws:

Exception

createRpcService

protected RpcService createRpcService(org.apache.flink.configuration.Configuration configuration,
                                      String bindAddress,
                                      String portRange)
                               throws Exception

Throws:

Exception

createHaServices

protected HighAvailabilityServices createHaServices(org.apache.flink.configuration.Configuration configuration,
                                                    Executor executor)
                                             throws Exception

Throws:

Exception

createHeartbeatServices

protected HeartbeatServices createHeartbeatServices(org.apache.flink.configuration.Configuration configuration)

createMetricRegistry

protected MetricRegistryImpl createMetricRegistry(org.apache.flink.configuration.Configuration configuration)

shutDown

protected void shutDown(boolean cleanupHaData)
                 throws org.apache.flink.util.FlinkException

Throws:

org.apache.flink.util.FlinkException

onFatalError

public void onFatalError(Throwable exception)

Description copied from interface: FatalErrorHandler

Being called when a fatal error occurs.

IMPORTANT: This call should never be blocking since it might be called from within the main thread of an RpcEndpoint.

Specified by:

onFatalError in interface FatalErrorHandler

Parameters:

exception - cause

startClusterComponents

protected abstract void startClusterComponents(org.apache.flink.configuration.Configuration configuration,
                                               RpcService rpcService,
                                               HighAvailabilityServices highAvailabilityServices,
                                               BlobServer blobServer,
                                               HeartbeatServices heartbeatServices,
                                               MetricRegistry metricRegistry)
                                        throws Exception

Throws:

Exception

stopClusterComponents

protected void stopClusterComponents(boolean cleanupHaData)
                              throws Exception

Throws:

Exception

parseArguments

protected static ClusterConfiguration parseArguments(String[] args)

loadConfiguration

protected static org.apache.flink.configuration.Configuration loadConfiguration(ClusterConfiguration clusterConfiguration)