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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4593) Deadlock in AbstractService.getConfig()
Date Wed, 16 Mar 2016 06:38:33 GMT

    [ https://issues.apache.org/jira/browse/YARN-4593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15196871#comment-15196871
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Karthik Kambatla commented on YARN-4593:
----------------------------------------

Seems like a safe change. +1

> Deadlock in AbstractService.getConfig()
> ---------------------------------------
>
>                 Key: YARN-4593
>                 URL: https://issues.apache.org/jira/browse/YARN-4593
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: yarn
>    Affects Versions: 2.7.2
>         Environment: AM restarting on kerberized cluster
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>         Attachments: YARN-4593-001.patch
>
>
> SLIDER-1052 has found a deadlock which can arise in it during AM restart. Looking at
the thread trace, one of the blockages is actually {{AbstractService.getConfig()}} —this
is synchronized and so blocked.



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