org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity

Class CapacitySchedulerPreemptionUtils

java.lang.Object

org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.CapacitySchedulerPreemptionUtils

public class CapacitySchedulerPreemptionUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
CapacitySchedulerPreemptionUtils()

Method Summary

Modifier and Type	Method and Description
static void	deductPreemptableResourcesBasedSelectedCandidates(org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.CapacitySchedulerPreemptionContext context, Map<org.apache.hadoop.yarn.api.records.ApplicationAttemptId,Set<RMContainer>> selectedCandidates)
static Map<String,org.apache.hadoop.yarn.api.records.Resource>	getResToObtainByPartitionForLeafQueue(org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.CapacitySchedulerPreemptionContext context, String queueName, org.apache.hadoop.yarn.api.records.Resource clusterResource)
static boolean	isContainerAlreadySelected(RMContainer container, Map<org.apache.hadoop.yarn.api.records.ApplicationAttemptId,Set<RMContainer>> selectedCandidates)
static boolean	tryPreemptContainerAndDeductResToObtain(org.apache.hadoop.yarn.util.resource.ResourceCalculator rc, org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.CapacitySchedulerPreemptionContext context, Map<String,org.apache.hadoop.yarn.api.records.Resource> resourceToObtainByPartitions, RMContainer rmContainer, org.apache.hadoop.yarn.api.records.Resource clusterResource, Map<org.apache.hadoop.yarn.api.records.ApplicationAttemptId,Set<RMContainer>> preemptMap, org.apache.hadoop.yarn.api.records.Resource totalPreemptionAllowed) Invoke this method to preempt container based on resToObtain.

Methods inherited from class java.lang.Object

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

Constructor Detail

CapacitySchedulerPreemptionUtils

public CapacitySchedulerPreemptionUtils()

Method Detail

getResToObtainByPartitionForLeafQueue

public static Map<String,org.apache.hadoop.yarn.api.records.Resource> getResToObtainByPartitionForLeafQueue(org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.CapacitySchedulerPreemptionContext context,
                                                                                                            String queueName,
                                                                                                            org.apache.hadoop.yarn.api.records.Resource clusterResource)

isContainerAlreadySelected

public static boolean isContainerAlreadySelected(RMContainer container,
                                                 Map<org.apache.hadoop.yarn.api.records.ApplicationAttemptId,Set<RMContainer>> selectedCandidates)

deductPreemptableResourcesBasedSelectedCandidates

public static void deductPreemptableResourcesBasedSelectedCandidates(org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.CapacitySchedulerPreemptionContext context,
                                                                     Map<org.apache.hadoop.yarn.api.records.ApplicationAttemptId,Set<RMContainer>> selectedCandidates)

tryPreemptContainerAndDeductResToObtain

public static boolean tryPreemptContainerAndDeductResToObtain(org.apache.hadoop.yarn.util.resource.ResourceCalculator rc,
                                                              org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.CapacitySchedulerPreemptionContext context,
                                                              Map<String,org.apache.hadoop.yarn.api.records.Resource> resourceToObtainByPartitions,
                                                              RMContainer rmContainer,
                                                              org.apache.hadoop.yarn.api.records.Resource clusterResource,
                                                              Map<org.apache.hadoop.yarn.api.records.ApplicationAttemptId,Set<RMContainer>> preemptMap,
                                                              org.apache.hadoop.yarn.api.records.Resource totalPreemptionAllowed)

Invoke this method to preempt container based on resToObtain.

Parameters:

rc - resource calculator

context - preemption context

resourceToObtainByPartitions - map to hold resource to obtain per partition

rmContainer - container

clusterResource - total resource

preemptMap - map to hold preempted containers

totalPreemptionAllowed - total preemption allowed per round

Returns:

should we preempt rmContainer. If we should, deduct from resourceToObtainByPartition