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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-192) Node update causes NPE in the fair scheduler
Date Fri, 04 Jan 2013 12:54:17 GMT

    [ https://issues.apache.org/jira/browse/YARN-192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13543857#comment-13543857
] 

Hudson commented on YARN-192:
-----------------------------

Integrated in Hadoop-Hdfs-trunk #1275 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1275/])
    YARN-192. Node update causes NPE in the fair scheduler. Contributed by Sandy Ryza (Revision
1428314)

     Result = FAILURE
tomwhite : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1428314
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/AppSchedulable.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java

                
> Node update causes NPE in the fair scheduler
> --------------------------------------------
>
>                 Key: YARN-192
>                 URL: https://issues.apache.org/jira/browse/YARN-192
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, scheduler
>    Affects Versions: 2.0.2-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: YARN-192-1.patch, YARN-192-1.patch, YARN-192.patch
>
>
> The exception occurs when unreserve is called on an FSSchedulerApp with a NodeId that
it does not know about.  The RM seems to have a different idea about what apps are reserved
for which node than the scheduler.
> 2012-10-29 22:30:52,901 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager:
Error in handling event type NODE_UPDATE to the scheduler
> java.lang.NullPointerException
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSSchedulerApp.unreserve(FSSchedulerApp.java:356)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AppSchedulable.unreserve(AppSchedulable.java:214)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AppSchedulable.assignContainer(AppSchedulable.java:266)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AppSchedulable.assignContainer(AppSchedulable.java:330)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueueSchedulable.assignContainer(FSQueueSchedulable.java:161)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.nodeUpdate(FairScheduler.java:759)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:836)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:1)
>         at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:329)
>         at java.lang.Thread.run(Thread.java:662)
> 2012-10-29 22:30:52,903 INFO org.apache.hadoop.yarn.server.resourcemanager.ResourceManager:
Exiting, bbye..

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