org.apache.hadoop.mapred
Class LocalContainerLauncher

java.lang.Object
  org.apache.hadoop.yarn.service.AbstractService
      org.apache.hadoop.mapred.LocalContainerLauncher

All Implemented Interfaces:

ContainerLauncher, org.apache.hadoop.yarn.event.EventHandler<ContainerLauncherEvent>, org.apache.hadoop.yarn.service.Service

public class LocalContainerLauncher
extends org.apache.hadoop.yarn.service.AbstractService
implements ContainerLauncher

Runs the container task locally in a thread. Since all (sub)tasks share the same local directory, they must be executed sequentially in order to avoid creating/deleting the same files/dirs.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncher

ContainerLauncher.EventType

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

org.apache.hadoop.yarn.service.Service.STATE

Field Summary

Fields inherited from interface org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncher

DEFAULT_NM_COMMAND_TIMEOUT, MR_AM_NM_COMMAND_TIMEOUT

Constructor Summary

LocalContainerLauncher(AppContext context, org.apache.hadoop.mapred.TaskUmbilicalProtocol umbilical)

Method Summary

void	handle(ContainerLauncherEvent event)
void	start()
void	stop()

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

getConfig, getName, getServiceState, getStartTime, init, register, unregister

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalContainerLauncher

public LocalContainerLauncher(AppContext context,
                              org.apache.hadoop.mapred.TaskUmbilicalProtocol umbilical)

Method Detail

start

public void start()

Specified by:

start in interface org.apache.hadoop.yarn.service.Service

Overrides:

start in class org.apache.hadoop.yarn.service.AbstractService

stop

public void stop()

Specified by:

stop in interface org.apache.hadoop.yarn.service.Service

Overrides:

stop in class org.apache.hadoop.yarn.service.AbstractService

handle

public void handle(ContainerLauncherEvent event)

Specified by:

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