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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6025) Issues in synchronization in AbstractYarnScheduler & its hierarchy
Date Mon, 02 Jan 2017 08:54:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-6025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15792513#comment-15792513
] 

Sunil G commented on YARN-6025:
-------------------------------

Generally patch looks fine for me.

> 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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