org.apache.hadoop.yarn.server.resourcemanager

Class RMServerUtils

java.lang.Object

org.apache.hadoop.yarn.server.resourcemanager.RMServerUtils

public class RMServerUtils
extends Object

Utility methods to aid serving RM data through the REST and RPC APIs

Constructor Summary

Constructors

Constructor and Description
RMServerUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static List<RMNode>	queryRMNodes(RMContext context, EnumSet<NodeState> acceptedStates)
static void	validateBlacklistRequest(ResourceBlacklistRequest blacklistRequest)
static void	validateContainerReleaseRequest(List<ContainerId> containerReleaseList, ApplicationAttemptId appAttemptId) It will validate to make sure all the containers belong to correct application attempt id.
static void	validateResourceRequests(List<ResourceRequest> ask, Resource maximumResource) Utility method to validate a list resource requests, by insuring that the requested memory/vcore is non-negative and not greater than max

Methods inherited from class java.lang.Object

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

Constructor Detail

RMServerUtils

public RMServerUtils()

Method Detail

queryRMNodes

public static List<RMNode> queryRMNodes(RMContext context,
                        EnumSet<NodeState> acceptedStates)

validateResourceRequests

public static void validateResourceRequests(List<ResourceRequest> ask,
                            Resource maximumResource)
                                     throws InvalidResourceRequestException

Utility method to validate a list resource requests, by insuring that the requested memory/vcore is non-negative and not greater than max

Throws:

InvalidResourceRequestException

validateBlacklistRequest

public static void validateBlacklistRequest(ResourceBlacklistRequest blacklistRequest)
                                     throws InvalidResourceBlacklistRequestException

Throws:

InvalidResourceBlacklistRequestException

validateContainerReleaseRequest

public static void validateContainerReleaseRequest(List<ContainerId> containerReleaseList,
                                   ApplicationAttemptId appAttemptId)
                                            throws InvalidContainerReleaseException

It will validate to make sure all the containers belong to correct application attempt id. If not then it will throw InvalidContainerReleaseException

Parameters:

containerReleaseList - containers to be released as requested by application master.

appAttemptId - Application attempt Id

Throws:

InvalidContainerReleaseException