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https://issues.apache.org/jira/browse/YARN-6408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15947638#comment-15947638
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Carlo Curino commented on YARN-6408:
------------------------------------
After a 2 hours running SLS (with YARN-6363 synth generator), I got an NPE in
handling NODE_UPDATE.
[~asuresh] suspects this to be related to the processing of a NODE_UPDATE after
the application is completed.
Below the stack trace for this:
2017-03-28 20:07:53,059 FATAL [SchedulerEventDispatcher:Event Processor]
event.EventDispatcher (EventDispatcher.java:run(75)) - Error in handling event
type NODE_UPDATE to the Event Dispatcher
java.lang.NullPointerException
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.UsersManager.computeUserLimit(UsersManager.java:732)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.UsersManager.reComputeUserLimits(UsersManager.java:611)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.UsersManager.getComputedResourceLimitForActiveUsers(UsersManager.java:463)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.getResourceLimitForActiveUsers(LeafQueue.java:1370)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.getHeadroom(LeafQueue.java:1243)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.getHeadroom(LeafQueue.java:1235)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityHeadroomProvider.getHeadroom(CapacityHeadroomProvider.java:57)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerApp.getHeadroom(FiCaSchedulerApp.java:757)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.releaseResource(LeafQueue.java:1618)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.completedContainer(LeafQueue.java:1528)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.completedContainerInternal(CapacityScheduler.java:1600)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.completedContainer(AbstractYarnScheduler.java:602)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.updateCompletedContainers(AbstractYarnScheduler.java:965)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.nodeUpdate(AbstractYarnScheduler.java:1038)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.nodeUpdate(CapacityScheduler.java:971)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:1368)
at
org.apache.hadoop.yarn.sls.scheduler.SLSCapacityScheduler.handle(SLSCapacityScheduler.java:254)
at
org.apache.hadoop.yarn.sls.scheduler.SLSCapacityScheduler.handle(SLSCapacityScheduler.java:84)
at
org.apache.hadoop.yarn.event.EventDispatcher$EventProcessor.run(EventDispatcher.java:66)
at java.lang.Thread.run(Thread.java:745)
> NPE in handling NODE_UPDATE (while running SLS)
> -----------------------------------------------
>
> Key: YARN-6408
> URL: https://issues.apache.org/jira/browse/YARN-6408
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Carlo Curino
>
> The UsersManager.computeUserLimit() throws an NPE during an SLS simulation.
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