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Posted to yarn-issues@hadoop.apache.org by "Varun Saxena (JIRA)" <ji...@apache.org> on 2015/07/12 00:06:04 UTC

[jira] [Updated] (YARN-3916) DrainDispatcher#await should wait till event has been completely handled

     [ https://issues.apache.org/jira/browse/YARN-3916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Varun Saxena updated YARN-3916:
-------------------------------
    Attachment: YARN-3916.01.patch

Updated patch

> DrainDispatcher#await should wait till event has been completely handled
> ------------------------------------------------------------------------
>
>                 Key: YARN-3916
>                 URL: https://issues.apache.org/jira/browse/YARN-3916
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.7.0
>            Reporter: Varun Saxena
>            Assignee: Varun Saxena
>            Priority: Critical
>         Attachments: YARN-3916.01.patch
>
>
> DrainDispatcher#await should wait till event has been completely handled.
> Currently it only checks for whether event queue has become empty.
> And in many tests we directly check for a state to be changed after calling await.
> Sometimes, the states do not change by the time we check them as event has not been completely handled.
> This is causing test failures such as YARN-3909 and YARN-3910 and may cause other test failures as well.



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