Package org.apache.hadoop.mapreduce.v2.app.rm.preemption

Class AMPreemptionPolicy.Context

java.lang.Object

org.apache.hadoop.mapreduce.v2.app.rm.preemption.AMPreemptionPolicy.Context

Enclosing interface:

AMPreemptionPolicy

public abstract static class AMPreemptionPolicy.Context
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
Context()

Method Summary

Modifier and Type	Method	Description
abstract java.util.List<org.apache.hadoop.yarn.api.records.Container>	getContainers(org.apache.hadoop.mapreduce.v2.api.records.TaskType t)	Method provides the complete list of containers running task of type t for this AM.
abstract org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId	getTaskAttempt(org.apache.hadoop.yarn.api.records.ContainerId container)

Methods inherited from class java.lang.Object

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

Constructor Detail

Context

public Context()

Method Detail

getTaskAttempt

public abstract org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId getTaskAttempt(org.apache.hadoop.yarn.api.records.ContainerId container)

Parameters:

container - ID of container to preempt

Returns:

Task associated with the running container or null if no task is bound to that container.

getContainers

public abstract java.util.List<org.apache.hadoop.yarn.api.records.Container> getContainers(org.apache.hadoop.mapreduce.v2.api.records.TaskType t)

Method provides the complete list of containers running task of type t for this AM.

Parameters:

t - the type of containers

Returns:

a map containing