Jun Gong created YARN-5333:
------------------------------

             Summary: apps are rejected when RM HA
                 Key: YARN-5333
                 URL: https://issues.apache.org/jira/browse/YARN-5333
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Jun Gong
            Assignee: Jun Gong


Enable RM HA and use FairScheduler.

Reproduce steps:
1. Start two RMs.
2. After RMs are running, change both RM's file 
{{etc/hadoop/fair-scheduler.xml}}, then add some queues.
3. Submit some apps to the new added queues.
4. Stop the active RM, then the standby RM will transit to active and recover 
apps.
However the new active RM will reject recovered apps because it might have not 
loaded the new {{fair-scheduler.xml}}. We need call {{initScheduler}} before 
start active services or bring {{refreshAll()}} in front of 
{{rm.transitionToActive()}}. *It seems it is aslo important for other 
scheduler*.

Related logs are as following:
{quote}
2016-07-07 16:55:34,756 INFO 
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Recover ended
...
2016-07-07 16:55:34,824 INFO 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AllocationFileLoaderService:
 Loading allocation file /gaia/hadoop/etc/hadoop/fair-scheduler.xml
2016-07-07 16:55:34,826 ERROR 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler: 
Application rejected by queue placement policy
2016-07-07 16:55:34,828 INFO 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler: 
Application appattempt_1467803586002_0006_000001 is done. finalState=FAILED
2016-07-07 16:55:34,828 INFO 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler: 
Unknown application appattempt_1467803586002_0006_000001 has completed!
2016-07-07 16:55:34,828 ERROR 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler: 
Application rejected by queue placement policy
2016-07-07 16:55:34,828 INFO 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler: 
Application appattempt_1467803586002_0004_000001 is done. finalState=FAILED
2016-07-07 16:55:34,828 INFO 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler: 
Unknown application appattempt_1467803586002_0004_000001 has completed!
2016-07-07 16:55:34,828 ERROR 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl: Can't handle 
this event at current state
org.apache.hadoop.yarn.state.InvalidStateTransitonException: Invalid event: 
APP_REJECTED at ACCEPTED
        at 
org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:305)
        at 
org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:46)
        at 
org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:697)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:88)
        at 
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:718)
        at 
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:702)
        at 
org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:191)
        at 
org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:124)
        at java.lang.Thread.run(Thread.java:745)
{quote}



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