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Rohith commented on YARN-2340: ------------------------------ [~jianhe] Kindly review the patch > NPE thrown when RM restart after queue is STOPPED. There after RM can not > recovery application's and remain in standby > ---------------------------------------------------------------------------------------------------------------------- > > Key: YARN-2340 > URL: https://issues.apache.org/jira/browse/YARN-2340 > Project: Hadoop YARN > Issue Type: Bug > Components: resourcemanager, scheduler > Affects Versions: 2.4.1 > Environment: Capacityscheduler with Queue a, b > Reporter: Nishan Shetty > Assignee: Rohith > Priority: Critical > Attachments: 0001-YARN-2340.patch > > > While job is in progress make Queue state as STOPPED and then restart RM > Observe that standby RM fails to come up as acive throwing below NPE > 2014-07-23 18:43:24,432 INFO > org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl: > appattempt_1406116264351_0014_000002 State change from NEW to SUBMITTED > 2014-07-23 18:43:24,433 FATAL > org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in > handling event type APP_ATTEMPT_ADDED to the scheduler > java.lang.NullPointerException > at > org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:568) > at > org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:916) > at > org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:101) > at > org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:602) > at java.lang.Thread.run(Thread.java:662) > 2014-07-23 18:43:24,434 INFO > org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Exiting, bbye.. -- This message was sent by Atlassian JIRA (v6.3.4#6332)