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https://issues.apache.org/jira/browse/MAPREDUCE-5888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13998217#comment-13998217
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Hudson commented on MAPREDUCE-5888:
-----------------------------------

FAILURE: Integrated in Hadoop-Hdfs-trunk #1753 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1753/])
MAPREDUCE-5888. Failed job leaves hung AM after it unregisters (Jason Lowe via 
jeagles) (jeagles: 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1594317)
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/JobImpl.java


> Failed job leaves hung AM after it unregisters 
> -----------------------------------------------
>
>                 Key: MAPREDUCE-5888
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5888
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mr-am
>    Affects Versions: 2.2.0
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>             Fix For: 3.0.0, 2.5.0
>
>         Attachments: MAPREDUCE-5888.patch
>
>
> When a job fails the AM hangs during shutdown.  A non-daemon thread pool 
> executor thread prevents the JVM teardown from completing, and the AM lingers 
> on the cluster for the AM expiry interval in the FINISHING state until 
> eventually the RM expires it and kills the container.  If application limits 
> on the queue are relatively low (e.g.: small queue or small cluster) this can 
> cause unnecessary delays in resource scheduling on the cluster.



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