[ 
https://issues.apache.org/jira/browse/YARN-3878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Varun Saxena updated YARN-3878:
-------------------------------
    Description: 
The sequence of events is as under :
# RM is stopped while putting a RMStateStore Event to RMStateStore's 
AsyncDispatcher. This leads to an Interrupted Exception being thrown.
# As RM is being stopped, RMStateStore's AsyncDispatcher is also stopped. On 
{{serviceStop}}, we will check if all events have been drained and wait for 
event queue to drain(as RM State Store dispatcher is configured for queue to 
drain on stop). 
# This condition never becomes true and AsyncDispatcher keeps on waiting 
incessantly for dispatcher event queue to drain till JVM exits.

*Initial exception while posting RM State store event to queue*
{noformat}
2015-06-27 20:08:35,922 DEBUG [main] service.AbstractService 
(AbstractService.java:enterState(452)) - Service: Dispatcher entered state 
STOPPED
2015-06-27 20:08:35,923 WARN  [AsyncDispatcher event handler] 
event.AsyncDispatcher (AsyncDispatcher.java:handle(247)) - AsyncDispatcher 
thread interrupted
java.lang.InterruptedException
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireInterruptibly(AbstractQueuedSynchronizer.java:1219)
        at 
java.util.concurrent.locks.ReentrantLock.lockInterruptibly(ReentrantLock.java:340)
        at 
java.util.concurrent.LinkedBlockingQueue.put(LinkedBlockingQueue.java:338)
        at 
org.apache.hadoop.yarn.event.AsyncDispatcher$GenericEventHandler.handle(AsyncDispatcher.java:244)
        at 
org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.updateApplicationAttemptState(RMStateStore.java:652)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.rememberTargetTransitionsAndStoreState(RMAppAttemptImpl.java:1173)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.access$3300(RMAppAttemptImpl.java:109)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$ContainerFinishedTransition.transition(RMAppAttemptImpl.java:1650)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$ContainerFinishedTransition.transition(RMAppAttemptImpl.java:1619)
        at 
org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:385)
        at 
org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
        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.attempt.RMAppAttemptImpl.handle(RMAppAttemptImpl.java:786)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.handle(RMAppAttemptImpl.java:108)
        at 
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationAttemptEventDispatcher.handle(ResourceManager.java:838)
{noformat}

*JStack of AsyncDispatcher hanging on stop*
{noformat}
"AsyncDispatcher event handler" prio=10 tid=0x00007fb980222800 nid=0x4b1e 
waiting on condition [0x00007fb9654e9000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x0000000700b79250> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:113)
        at java.lang.Thread.run(Thread.java:744)

"main" prio=10 tid=0x00007fb98000a800 nid=0x49c3 in Object.wait() 
[0x00007fb989851000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x0000000700b79430> (a java.lang.Object)
        at 
org.apache.hadoop.yarn.event.AsyncDispatcher.serviceStop(AsyncDispatcher.java:156)
        - locked <0x0000000700b79430> (a java.lang.Object)
        at 
org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
        - locked <0x0000000700b79420> (a java.lang.Object)
        at 
org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.serviceStop(RMStateStore.java:515)
        at 
org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
        - locked <0x0000000700b79630> (a java.lang.Object)
        at 
org.apache.hadoop.service.AbstractService.close(AbstractService.java:250)
        at 
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceStop(ResourceManager.java:599)
{noformat}



  was:
The sequence of events is as under :
# RM is stopped while putting a RMStateStore Event to RMStateStore's 
AsyncDispatcher. This leads to an Interrupted Exception being thrown.
# As RM is being stopped, RMStateStore's AsyncDispatcher is also stopped. On 
{{serviceStop}}, we will check if all events have been drained and wait for 
event queue to drain(as RM State Store dispatcher is configured for queue to 
drain on stop). 
# This condition never becomes true and AsyncDispatcher keeps on waiting 
incessantly for dispatcher event queue to drain till JVM exits.

*Initial exception while posting RM State store event to queue*
{noformat}
2015-06-27 20:08:35,922 DEBUG [main] service.AbstractService 
(AbstractService.java:enterState(452)) - Service: Dispatcher entered state 
STOPPED
2015-06-27 20:08:35,923 WARN  [AsyncDispatcher event handler] 
event.AsyncDispatcher (AsyncDispatcher.java:handle(247)) - AsyncDispatcher 
thread interrupted
java.lang.InterruptedException
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireInterruptibly(AbstractQueuedSynchronizer.java:1219)
        at 
java.util.concurrent.locks.ReentrantLock.lockInterruptibly(ReentrantLock.java:340)
        at 
java.util.concurrent.LinkedBlockingQueue.put(LinkedBlockingQueue.java:338)
        at 
org.apache.hadoop.yarn.event.AsyncDispatcher$GenericEventHandler.handle(AsyncDispatcher.java:244)
        at 
org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.updateApplicationAttemptState(RMStateStore.java:652)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.rememberTargetTransitionsAndStoreState(RMAppAttemptImpl.java:1173)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.access$3300(RMAppAttemptImpl.java:109)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$ContainerFinishedTransition.transition(RMAppAttemptImpl.java:1650)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$ContainerFinishedTransition.transition(RMAppAttemptImpl.java:1619)
        at 
org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:385)
        at 
org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
        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.attempt.RMAppAttemptImpl.handle(RMAppAttemptImpl.java:786)
        at 
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.handle(RMAppAttemptImpl.java:108)
        at 
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationAttemptEventDispatcher.handle(ResourceManager.java:838)
{noformat}

* JStack of AsyncDispatcher hanging on stop *
{noformat}
"AsyncDispatcher event handler" prio=10 tid=0x00007fb980222800 nid=0x4b1e 
waiting on condition [0x00007fb9654e9000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x0000000700b79250> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:113)
        at java.lang.Thread.run(Thread.java:744)

"main" prio=10 tid=0x00007fb98000a800 nid=0x49c3 in Object.wait() 
[0x00007fb989851000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x0000000700b79430> (a java.lang.Object)
        at 
org.apache.hadoop.yarn.event.AsyncDispatcher.serviceStop(AsyncDispatcher.java:156)
        - locked <0x0000000700b79430> (a java.lang.Object)
        at 
org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
        - locked <0x0000000700b79420> (a java.lang.Object)
        at 
org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.serviceStop(RMStateStore.java:515)
        at 
org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
        - locked <0x0000000700b79630> (a java.lang.Object)
        at 
org.apache.hadoop.service.AbstractService.close(AbstractService.java:250)
        at 
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceStop(ResourceManager.java:599)
{noformat}




> AsyncDispatcher can hang while stopping if it is configured for draining 
> events on stop
> ---------------------------------------------------------------------------------------
>
>                 Key: YARN-3878
>                 URL: https://issues.apache.org/jira/browse/YARN-3878
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>            Reporter: Varun Saxena
>            Assignee: Varun Saxena
>            Priority: Critical
>
> The sequence of events is as under :
> # RM is stopped while putting a RMStateStore Event to RMStateStore's 
> AsyncDispatcher. This leads to an Interrupted Exception being thrown.
> # As RM is being stopped, RMStateStore's AsyncDispatcher is also stopped. On 
> {{serviceStop}}, we will check if all events have been drained and wait for 
> event queue to drain(as RM State Store dispatcher is configured for queue to 
> drain on stop). 
> # This condition never becomes true and AsyncDispatcher keeps on waiting 
> incessantly for dispatcher event queue to drain till JVM exits.
> *Initial exception while posting RM State store event to queue*
> {noformat}
> 2015-06-27 20:08:35,922 DEBUG [main] service.AbstractService 
> (AbstractService.java:enterState(452)) - Service: Dispatcher entered state 
> STOPPED
> 2015-06-27 20:08:35,923 WARN  [AsyncDispatcher event handler] 
> event.AsyncDispatcher (AsyncDispatcher.java:handle(247)) - AsyncDispatcher 
> thread interrupted
> java.lang.InterruptedException
>       at 
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireInterruptibly(AbstractQueuedSynchronizer.java:1219)
>       at 
> java.util.concurrent.locks.ReentrantLock.lockInterruptibly(ReentrantLock.java:340)
>       at 
> java.util.concurrent.LinkedBlockingQueue.put(LinkedBlockingQueue.java:338)
>       at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$GenericEventHandler.handle(AsyncDispatcher.java:244)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.updateApplicationAttemptState(RMStateStore.java:652)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.rememberTargetTransitionsAndStoreState(RMAppAttemptImpl.java:1173)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.access$3300(RMAppAttemptImpl.java:109)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$ContainerFinishedTransition.transition(RMAppAttemptImpl.java:1650)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$ContainerFinishedTransition.transition(RMAppAttemptImpl.java:1619)
>       at 
> org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:385)
>       at 
> org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
>       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.attempt.RMAppAttemptImpl.handle(RMAppAttemptImpl.java:786)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.handle(RMAppAttemptImpl.java:108)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationAttemptEventDispatcher.handle(ResourceManager.java:838)
> {noformat}
> *JStack of AsyncDispatcher hanging on stop*
> {noformat}
> "AsyncDispatcher event handler" prio=10 tid=0x00007fb980222800 nid=0x4b1e 
> waiting on condition [0x00007fb9654e9000]
>    java.lang.Thread.State: WAITING (parking)
>         at sun.misc.Unsafe.park(Native Method)
>         - parking to wait for  <0x0000000700b79250> (a 
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
>         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
>         at 
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
>         at 
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
>         at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:113)
>         at java.lang.Thread.run(Thread.java:744)
> "main" prio=10 tid=0x00007fb98000a800 nid=0x49c3 in Object.wait() 
> [0x00007fb989851000]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
>       at java.lang.Object.wait(Native Method)
>       - waiting on <0x0000000700b79430> (a java.lang.Object)
>       at 
> org.apache.hadoop.yarn.event.AsyncDispatcher.serviceStop(AsyncDispatcher.java:156)
>       - locked <0x0000000700b79430> (a java.lang.Object)
>       at 
> org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
>       - locked <0x0000000700b79420> (a java.lang.Object)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.serviceStop(RMStateStore.java:515)
>       at 
> org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
>       - locked <0x0000000700b79630> (a java.lang.Object)
>       at 
> org.apache.hadoop.service.AbstractService.close(AbstractService.java:250)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceStop(ResourceManager.java:599)
> {noformat}



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