Package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair

Class FSSchedulerNode

java.lang.Object

org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode

org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSSchedulerNode

@Private
@Unstable
public class FSSchedulerNode
extends SchedulerNode

Fair Scheduler specific node features.

Constructor Summary

Constructors

Constructor	Description
FSSchedulerNode(RMNode node, boolean usePortForNodeName)

Method Summary

Modifier and Type	Method	Description
protected void	allocateContainer(RMContainer rmContainer, boolean launchedOnNode)	The Scheduler has allocated containers on this node to the given application.
void	releaseContainer(org.apache.hadoop.yarn.api.records.ContainerId containerId, boolean releasedByNode)	Release an allocated container on this node.
void	reserveResource(SchedulerApplicationAttempt application, org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey schedulerKey, RMContainer container)	Reserve container for the attempt on this node.
void	unreserveResource(SchedulerApplicationAttempt application)	Unreserve resources on this node.

Methods inherited from class org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode

allocateContainer, containerStarted, deductUnallocatedResource, equals, getAggregatedContainersUtilization, getAllocatedResource, getContainer, getContainersToKill, getCopiedListOfRunningContainers, getHttpAddress, getLabels, getLastHeartbeatMonotonicTime, getLaunchedContainers, getNodeAttributes, getNodeID, getNodeName, getNodeUtilization, getNumContainers, getPartition, getRackName, getReservedContainer, getRMNode, getRunningContainersWithAMsAtTheEnd, getTotalResource, getUnallocatedResource, hashCode, isOvercommitTimedOut, isOvercommitTimeOutSet, isValidContainer, notifyNodeUpdate, recoverContainer, setAggregatedContainersUtilization, setNodeUtilization, setOvercommitTimeOut, setReservedContainer, toString, updateLabels, updateNodeAttributes, updateResourceForReleasedContainer, updateTotalResource

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

FSSchedulerNode

public FSSchedulerNode(RMNode node,
 boolean usePortForNodeName)

Method Details

reserveResource

public void reserveResource(SchedulerApplicationAttempt application,
 org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey schedulerKey,
 RMContainer container)

Description copied from class: SchedulerNode

Reserve container for the attempt on this node.

Specified by:

reserveResource in class SchedulerNode

Parameters:

application - Application attempt asking for the reservation.

schedulerKey - Priority of the reservation.

container - Container reserving resources for.

unreserveResource

public void unreserveResource(SchedulerApplicationAttempt application)

Description copied from class: SchedulerNode

Unreserve resources on this node.

Specified by:

unreserveResource in class SchedulerNode

Parameters:

application - Application attempt that had done the reservation.

allocateContainer

protected void allocateContainer(RMContainer rmContainer,
 boolean launchedOnNode)

The Scheduler has allocated containers on this node to the given application.

Overrides:

allocateContainer in class SchedulerNode

Parameters:

rmContainer - Allocated container

launchedOnNode - True if the container has been launched

releaseContainer

public void releaseContainer(org.apache.hadoop.yarn.api.records.ContainerId containerId,
 boolean releasedByNode)

Release an allocated container on this node. It also releases from the reservation list to trigger preemption allocations.

Overrides:

releaseContainer in class SchedulerNode

Parameters:

containerId - ID of container to be released.

releasedByNode - whether the release originates from a node update.