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From "Chengbing Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3826) Race condition in ResourceTrackerService: potential wrong diagnostics messages
Date Thu, 25 Jun 2015 03:13:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-3826?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14600605#comment-14600605
] 

Chengbing Liu commented on YARN-3826:
-------------------------------------

Sorry for the delay. I'll submit a new patch shortly.

> Race condition in ResourceTrackerService: potential wrong diagnostics messages
> ------------------------------------------------------------------------------
>
>                 Key: YARN-3826
>                 URL: https://issues.apache.org/jira/browse/YARN-3826
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.7.0
>            Reporter: Chengbing Liu
>            Assignee: Chengbing Liu
>         Attachments: YARN-3826.01.patch
>
>
> Since we are calling {{setDiagnosticsMessage}} in {{nodeHeartbeat}}, which can be called
concurrently, the static {{resync}} and {{shutdown}} may have wrong diagnostics messages in
some cases.
> On the other side, these static members can hardly save any memory, since the normal
heartbeat responses are created for each heartbeat.



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