org.apache.hadoop.yarn.server.nodemanager.util
Interface LCEResourcesHandler

All Superinterfaces:

org.apache.hadoop.conf.Configurable

All Known Implementing Classes:

CgroupsLCEResourcesHandler, DefaultLCEResourcesHandler

public interface LCEResourcesHandler
extends org.apache.hadoop.conf.Configurable

Method Summary

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.

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Method Detail

init

void init(LinuxContainerExecutor lce)
          throws IOException

Throws:

IOException

preExecute

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

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

Parameters:

containerId - the id of the container being launched

containerResource - the node resources the container will be using

Throws:

IOException

postExecute

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).

Parameters:

containerId - the id of the container which was launched

getResourcesOption

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