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From "Zhiyuan Yang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-5436) Race in AsyncDispatcher can cause random test failures in Tez(probably YARN also )
Date Tue, 26 Jul 2016 23:30:21 GMT
Zhiyuan Yang created YARN-5436:
----------------------------------

             Summary: 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 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).



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