Package org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher

Class ContainersLauncher

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainersLauncher

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.service.Service, org.apache.hadoop.yarn.event.EventHandler<ContainersLauncherEvent>, AbstractContainersLauncher

public class ContainersLauncher
extends org.apache.hadoop.service.AbstractService
implements AbstractContainersLauncher

The launcher for the containers. This service should be started only after the ResourceLocalizationService is started as it depends on creation of system directories on the local file-system.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

org.apache.hadoop.service.Service.STATE

Field Summary

Fields

Modifier and Type	Field	Description
ExecutorService	containerLauncher
final Map<org.apache.hadoop.yarn.api.records.ContainerId,ContainerLaunch>	running

Constructor Summary

Constructors

Constructor	Description
ContainersLauncher()
ContainersLauncher(Context context, org.apache.hadoop.yarn.event.Dispatcher dispatcher, ContainerExecutor exec, LocalDirsHandlerService dirsHandler, ContainerManagerImpl containerManager)

Method Summary

Modifier and Type	Method	Description
void	handle(ContainersLauncherEvent event)
void	init(Context nmContext, org.apache.hadoop.yarn.event.Dispatcher nmDispatcher, ContainerExecutor containerExec, LocalDirsHandlerService nmDirsHandler, ContainerManagerImpl nmContainerManager)
protected void	serviceInit(org.apache.hadoop.conf.Configuration conf)
protected void	serviceStop()

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, serviceStart, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.service.Service

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, registerServiceListener, start, stop, unregisterServiceListener, waitForServiceToStop

Field Details

containerLauncher

@VisibleForTesting
public ExecutorService containerLauncher

running

@VisibleForTesting
public final Map<org.apache.hadoop.yarn.api.records.ContainerId,ContainerLaunch> running

Constructor Details

ContainersLauncher

public ContainersLauncher()

ContainersLauncher

@VisibleForTesting
public ContainersLauncher(Context context,
 org.apache.hadoop.yarn.event.Dispatcher dispatcher,
 ContainerExecutor exec,
 LocalDirsHandlerService dirsHandler,
 ContainerManagerImpl containerManager)

Method Details

init

public void init(Context nmContext,
 org.apache.hadoop.yarn.event.Dispatcher nmDispatcher,
 ContainerExecutor containerExec,
 LocalDirsHandlerService nmDirsHandler,
 ContainerManagerImpl nmContainerManager)

Specified by:

init in interface AbstractContainersLauncher

serviceInit

protected void serviceInit(org.apache.hadoop.conf.Configuration conf)
                    throws Exception

Overrides:

serviceInit in class org.apache.hadoop.service.AbstractService

Throws:

Exception

serviceStop

protected void serviceStop()
                    throws Exception

Overrides:

serviceStop in class org.apache.hadoop.service.AbstractService

Throws:

Exception

handle

public void handle(ContainersLauncherEvent event)

Specified by:

handle in interface org.apache.hadoop.yarn.event.EventHandler<ContainersLauncherEvent>