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From "Tsuyoshi Ozawa (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4348) ZKRMStateStore.syncInternal shouldn't wait for sync completion for avoiding blocking ZK's event thread
Date Mon, 07 Dec 2015 01:48:11 GMT

    [ https://issues.apache.org/jira/browse/YARN-4348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15044258#comment-15044258
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Tsuyoshi Ozawa commented on YARN-4348:
--------------------------------------

[~jianhe] could you take a look?

> ZKRMStateStore.syncInternal shouldn't wait for sync completion for avoiding blocking
ZK's event thread
> ------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-4348
>                 URL: https://issues.apache.org/jira/browse/YARN-4348
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.7.2, 2.6.2
>            Reporter: Tsuyoshi Ozawa
>            Assignee: Tsuyoshi Ozawa
>            Priority: Blocker
>         Attachments: YARN-4348-branch-2.7.002.patch, YARN-4348-branch-2.7.003.patch,
YARN-4348-branch-2.7.004.patch, YARN-4348.001.patch, YARN-4348.001.patch, log.txt
>
>
> Jian mentioned that the current internal ZK configuration of ZKRMStateStore can cause
a following situation:
> 1. syncInternal timeouts, 
> 2. but sync succeeded later on.
> We should use zkResyncWaitTime as the timeout value.



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