[jira] [Created] (YARN-4911) Bad placement policy in FairScheduler causes the RM to crash

["Ray Chiang (JIRA)" <ji...@apache.org>]

Ray Chiang created YARN-4911:
--------------------------------

             Summary: Bad placement policy in FairScheduler causes the RM to crash
                 Key: YARN-4911
                 URL: https://issues.apache.org/jira/browse/YARN-4911
             Project: Hadoop YARN
          Issue Type: Bug
          Components: yarn
            Reporter: Ray Chiang
            Assignee: Ray Chiang


When you have a fair-scheduler.xml with the rule:

  <queuePlacementPolicy>
    <rule name="default" queue="okay1" create="false" />
  </queuePlacementPolicy>

and the queue okay1 doesn't exist, the following exception occurs in the RM:

2016-04-01 16:56:33,383 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in handling event type APP_ADDED to the scheduler
java.lang.IllegalStateException: Should have applied a rule before reaching here
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.QueuePlacementPolicy.assignAppToQueue(QueuePlacementPolicy.java:173)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.assignToQueue(FairScheduler.java:728)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.addApplication(FairScheduler.java:634)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:1224)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:112)
        at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:691)
        at java.lang.Thread.run(Thread.java:745)

which causes the RM to crash.




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