org.apache.slider.server.appmaster.state

Class AbstractClusterServices

java.lang.Object

org.apache.slider.server.appmaster.state.AbstractClusterServices

Direct Known Subclasses:

ProtobufClusterServices

public abstract class AbstractClusterServices
extends Object

Cluster services offered by the YARN infrastructure.

Constructor Summary

Constructors

Constructor and Description
AbstractClusterServices()

Method Summary

Methods

Modifier and Type	Method and Description
abstract org.apache.hadoop.yarn.api.records.Resource	newResource() Create a resource for requests
abstract org.apache.hadoop.yarn.api.records.Resource	newResource(int memory, int cores)
org.apache.hadoop.yarn.api.records.Resource	normalize(org.apache.hadoop.yarn.api.records.Resource resource, org.apache.hadoop.yarn.api.records.Resource minR, org.apache.hadoop.yarn.api.records.Resource maxR) Normalise memory, CPU and other resources according to the YARN AM-supplied values and the resource calculator in use (currently hard-coded to the DefaultResourceCalculator.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractClusterServices

public AbstractClusterServices()

Method Detail

newResource

public abstract org.apache.hadoop.yarn.api.records.Resource newResource()

Create a resource for requests

Returns:

a resource which can be built up.

newResource

public abstract org.apache.hadoop.yarn.api.records.Resource newResource(int memory,
                                                      int cores)

normalize

public org.apache.hadoop.yarn.api.records.Resource normalize(org.apache.hadoop.yarn.api.records.Resource resource,
                                                    org.apache.hadoop.yarn.api.records.Resource minR,
                                                    org.apache.hadoop.yarn.api.records.Resource maxR)

Normalise memory, CPU and other resources according to the YARN AM-supplied values and the resource calculator in use (currently hard-coded to the DefaultResourceCalculator. Those resources which aren't normalized (currently: CPU) are left as is.

Parameters:

resource - resource requirements of a role

minR - minimum values of this queue

maxR - max values of this queue

Returns:

a normalized value.