Lohit Vijayarenu created YARN-502:
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Summary: RM crash with NPE on NODE_REMOVED event
Key: YARN-502
URL: https://issues.apache.org/jira/browse/YARN-502
Project: Hadoop YARN
Issue Type: Bug
Affects Versions: 2.0.3-alpha
Reporter: Lohit Vijayarenu
While running some test and adding/removing nodes, we see RM crashed with the
below exception. We are testing with fair scheduler and running
hadoop-2.0.3-alpha
{noformat}
2013-03-22 18:54:27,015 INFO
org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeImpl: Deactivating
Node YYYY:55680 as it is now LOST
2013-03-22 18:54:27,015 INFO
org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeImpl: YYYY:55680
Node Transitioned from UNHEALTHY to LOST
2013-03-22 18:54:27,015 FATAL
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in
handling event type NODE_REMOVED to the scheduler
java.lang.NullPointerException
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.removeNode(FairScheduler.java:619)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:856)
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:375)
at java.lang.Thread.run(Thread.java:662)
2013-03-22 18:54:27,016 INFO
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Exiting, bbye..
2013-03-22 18:54:27,020 INFO org.mortbay.log: Stopped
SelectChannelConnector@XXXX:50030
{noformat}
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