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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-271) Fair scheduler hits IllegalStateException trying to reserve different apps on same node
Date Thu, 13 Dec 2012 22:56:12 GMT

    [ https://issues.apache.org/jira/browse/YARN-271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13531609#comment-13531609
] 

Sandy Ryza commented on YARN-271:
---------------------------------

2012-12-11 17:31:52,999 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager:
Error in handling event type NODE_UPDATE to the scheduler
java.lang.IllegalStateException: Trying to reserve container org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainerImpl@324f0f97
for application application_1355270529654_0003 when currently reserved container org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainerImpl@24b950d1
on node host: c1416.hal.cloudera.com:46356 #containers=7 available=0 used=8192
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSSchedulerNode.reserveResource(FSSchedulerNode.java:210)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AppSchedulable.reserve(AppSchedulable.java:189)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AppSchedulable.assignContainer(AppSchedulable.java:273)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AppSchedulable.assignContainer(AppSchedulable.java:327)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSLeafQueue.assignContainer(FSLeafQueue.java:180)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.nodeUpdate(FairScheduler.java:780)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:842)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:98)
	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:330)
	at java.lang.Thread.run(Thread.java:662)
                
> Fair scheduler hits IllegalStateException trying to reserve different apps on same node
> ---------------------------------------------------------------------------------------
>
>                 Key: YARN-271
>                 URL: https://issues.apache.org/jira/browse/YARN-271
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, scheduler
>    Affects Versions: 2.0.2-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>
> After the fair scheduler reserves a container on a node, it doesn't check for reservations
it just made, when trying to make more reservations during the same heartbeat.

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