Sandy Ryza created YARN-192:
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Summary: 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
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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