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From "Zhiyuan Yang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-5436) Race in AsyncDispatcher can cause random test failures in Tez(probably YARN also )
Date Tue, 26 Jul 2016 23:33:20 GMT

     [ https://issues.apache.org/jira/browse/YARN-5436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhiyuan Yang updated YARN-5436:
-------------------------------
    Description: In YARN-2264, a race in DrainDispatcher was fixed. Unfortunately, it also
exists in AsyncDispatcher but wasn't found. In YARN-2991, another DrainDispatcher bug was
fixed by letting DrainDispatcher extend AsyncDispatcher because AsyncDispatcher doesn't have
such issue. However, this shadows YARN-2264, and now similar race reappears in Tez unit tests
(probably also YARN unit tests also).  (was: In YARN-2264, a race in DrainedDispatcher was
fixed. Unfortunately, it also exists in AsyncDispatcher but wasn't found. In YARN-2991, another
DrainedDispatcher bug was fixed by letting DrainedDispatcher extend AsyncDispatcher because
AsyncDispatcher doesn't have such issue. However, this shadows YARN-2264, and now similar
race reappears in Tez unit tests (probably also YARN unit tests also).)

> Race in AsyncDispatcher can cause random test failures in Tez(probably YARN also )
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-5436
>                 URL: https://issues.apache.org/jira/browse/YARN-5436
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Zhiyuan Yang
>            Assignee: Zhiyuan Yang
>
> In YARN-2264, a race in DrainDispatcher was fixed. Unfortunately, it also exists in AsyncDispatcher
but wasn't found. In YARN-2991, another DrainDispatcher bug was fixed by letting DrainDispatcher
extend AsyncDispatcher because AsyncDispatcher doesn't have such issue. However, this shadows
YARN-2264, and now similar race reappears in Tez unit tests (probably also YARN unit tests
also).



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