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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6025) Issues in synchronization in AbstractYarnScheduler & its hierarchy
Date Tue, 03 Jan 2017 04:39:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-6025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15794121#comment-15794121
] 

Wangda Tan commented on YARN-6025:
----------------------------------

+1, pending Jenkins. Thanks [~Naganarasimha]

> Issues in synchronization in AbstractYarnScheduler & its hierarchy
> ------------------------------------------------------------------
>
>                 Key: YARN-6025
>                 URL: https://issues.apache.org/jira/browse/YARN-6025
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacity scheduler, scheduler
>            Reporter: Naganarasimha G R
>            Assignee: Naganarasimha G R
>         Attachments: YARN-6025.002.patch, YARN-6025.01.patch
>
>
> YARN-3139 does optimization on the locks by introducing ReentrantReadWriteLock to remove
synchronized locks, but still seems to have some  synchronization locks in AbstractYarnScheduler
and its hierarchy because of nonavailibility of read write locks in Fifo scheduler.



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