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From "Rohith (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6311) AM JVM hungs after job unregister and finished
Date Tue, 07 Apr 2015 09:51:12 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14482928#comment-14482928
] 

Rohith commented on MAPREDUCE-6311:
-----------------------------------

While starting HttpServer2, SignerSecretProvider is added to webAppContext in attribute. SignerSecretProvider
is creating the ScheduledThreadPoolExecutor and scheduled but never stopped explicitly while
stopping HttpServer2 which causes MRAppMaster JVM to hung after unregister with RM.

> AM JVM hungs after job unregister and finished
> ----------------------------------------------
>
>                 Key: MAPREDUCE-6311
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6311
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Rohith
>            Assignee: Rohith
>         Attachments: MR_TD.out
>
>
> It is observed that MRAppMaster JVM hungs after unregistered with ResourceManager.



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