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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