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https://issues.apache.org/jira/browse/TEZ-1661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14280718#comment-14280718
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Siddharth Seth commented on TEZ-1661:
-------------------------------------
That's equivalent to changing the example - but somehow didn't reproduce on my
setup.
IAC, I believe we still have the issue where multiple LocalClients within a
single JVM will leave all the DAGAppMasters hanging around. Creating a follow
up to implement stop in LocalClient - which [~ozhurakousky] pointed out in a
previous comment.
> LocalTaskScheduler hangs when shutdown
> --------------------------------------
>
> Key: TEZ-1661
> URL: https://issues.apache.org/jira/browse/TEZ-1661
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.5.0
> Environment: Local Mode
> Reporter: Oleg Zhurakousky
> Assignee: Jeff Zhang
> Fix For: 0.7.0
>
> Attachments: TEZ-1661-1.patch, TEZ-1661-2.patch
>
>
> LocalTaskScheduler hangs on 'take' from the 'taskRequestQueue ' when
> TezClient shuts down (e.g., TezClient.stop).
> Below is jstack output observed when running in Tez local mode:
> {code}
> "Thread-53" prio=5 tid=0x00007fc876d8f800 nid=0xac07 runnable
> [0x000000011df90000]
> java.lang.Thread.State: RUNNABLE
> at java.lang.Throwable.fillInStackTrace(Native Method)
> at java.lang.Throwable.fillInStackTrace(Throwable.java:783)
> - locked <0x00000007b6ce60a0> (a java.lang.InterruptedException)
> at java.lang.Throwable.<init>(Throwable.java:250)
> at java.lang.Exception.<init>(Exception.java:54)
> at java.lang.InterruptedException.<init>(InterruptedException.java:57)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireInterruptibly(AbstractQueuedSynchronizer.java:1219)
> at
> java.util.concurrent.locks.ReentrantLock.lockInterruptibly(ReentrantLock.java:340)
> at
> java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:535)
> at
> org.apache.tez.dag.app.rm.LocalTaskSchedulerService$AsyncDelegateRequestHandler.processRequest(LocalTaskSchedulerService.java:310)
> at
> org.apache.tez.dag.app.rm.LocalTaskSchedulerService$AsyncDelegateRequestHandler.run(LocalTaskSchedulerService.java:304)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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