org.apache.hadoop.yarn.server.nodemanager.util
Class CgroupsLCEResourcesHandler

java.lang.Object
  org.apache.hadoop.yarn.server.nodemanager.util.CgroupsLCEResourcesHandler

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, LCEResourcesHandler

public class CgroupsLCEResourcesHandler
extends Object
implements LCEResourcesHandler

Constructor Summary

CgroupsLCEResourcesHandler()

Method Summary

org.apache.hadoop.conf.Configuration	getConf()
String	getResourcesOption(org.apache.hadoop.yarn.api.records.ContainerId containerId)
void	init(LinuxContainerExecutor lce)
void	postExecute(org.apache.hadoop.yarn.api.records.ContainerId containerId) Called by the LinuxContainerExecutor after the executable inside the container has exited (successfully or not).
void	preExecute(org.apache.hadoop.yarn.api.records.ContainerId containerId, org.apache.hadoop.yarn.api.records.Resource containerResource) Called by the LinuxContainerExecutor before launching the executable inside the container.
void	setConf(org.apache.hadoop.conf.Configuration conf)

Methods inherited from class java.lang.Object

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

Constructor Detail

CgroupsLCEResourcesHandler

public CgroupsLCEResourcesHandler()

Method Detail

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

getConf

public org.apache.hadoop.conf.Configuration getConf()

Specified by:

getConf in interface org.apache.hadoop.conf.Configurable

init

public void init(LinuxContainerExecutor lce)
          throws IOException

Specified by:

init in interface LCEResourcesHandler

Throws:

IOException

preExecute

public void preExecute(org.apache.hadoop.yarn.api.records.ContainerId containerId,
                       org.apache.hadoop.yarn.api.records.Resource containerResource)
                throws IOException

Description copied from interface: LCEResourcesHandler

Called by the LinuxContainerExecutor before launching the executable inside the container.

Specified by:

preExecute in interface LCEResourcesHandler

Parameters:

containerId - the id of the container being launched

containerResource - the node resources the container will be using

Throws:

IOException

postExecute

public void postExecute(org.apache.hadoop.yarn.api.records.ContainerId containerId)

Description copied from interface: LCEResourcesHandler

Called by the LinuxContainerExecutor after the executable inside the container has exited (successfully or not).

Specified by:

postExecute in interface LCEResourcesHandler

Parameters:

containerId - the id of the container which was launched

getResourcesOption

public String getResourcesOption(org.apache.hadoop.yarn.api.records.ContainerId containerId)

Specified by:

getResourcesOption in interface LCEResourcesHandler