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From "sandflee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5375) invoke MockRM#drainEvents implicitly in MockRM methods to reduce test failures
Date Tue, 16 Aug 2016 13:07:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15422698#comment-15422698
] 

sandflee commented on YARN-5375:
--------------------------------

1, replace rmStateStore#AsyncDispatcher with DrainDispatcher, yes the code is not clean, welcome
suggestions!
2, set DrainDispacher#isDrain default value to true, and sleep a while if not drained to reduce
cpu usage.
3,  not invoke setDrainEventsOnStop in RMStateStore#DrainDispatcher creation , for DrainDispacher
will take 300s to stop if enabled setDrainEventsOnStop, file YARN-5526 to track.

> invoke MockRM#drainEvents implicitly in MockRM methods to reduce test failures
> ------------------------------------------------------------------------------
>
>                 Key: YARN-5375
>                 URL: https://issues.apache.org/jira/browse/YARN-5375
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: sandflee
>            Assignee: sandflee
>         Attachments: YARN-5375.01.patch, YARN-5375.03.patch, YARN-5375.04.patch, YARN-5375.05.patch,
YARN-5375.06.patch
>
>
> seen many test failures related to RMApp/RMAppattempt comes to some state but some event
are not processed in rm event queue or scheduler event queue, cause test failure, seems we
could implicitly invokes drainEvents(should also drain sheduler event) in some mockRM method
like waitForState



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