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From "Haibo Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5155) Race condition in test case TestFetchFailure cause it to fail
Date Wed, 07 Dec 2016 20:31:58 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15729837#comment-15729837
] 

Haibo Chen commented on MAPREDUCE-5155:
---------------------------------------

TestMRApp.testUpdatedNodes() has been fixed in MAPREDUCE-4785

> Race condition in test case TestFetchFailure cause it to fail
> -------------------------------------------------------------
>
>                 Key: MAPREDUCE-5155
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5155
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 2.0.3-alpha
>         Environment: Suse x86_64 GNU/Linux
> Java(TM) SE Runtime Environment (build 1.6.0_32-b05
>            Reporter: Nemon Lou
>            Assignee: Haibo Chen
>            Priority: Minor
>         Attachments: org.apache.hadoop.mapreduce.v2.app.TestFetchFailure-output.txt,
org.apache.hadoop.mapreduce.v2.app.TestFetchFailure.txt
>
>
> I run into this once: testFetchFailureWithRecovery(org.apache.hadoop.mapreduce.v2.app.TestFetchFailure):
Num completion events not correct expected:<1> but was:<0>
> There is a race condition between job.getTaskAttemptCompletionEvents and dealing with
JOB_TASK_ATTEMPT_COMPLETED event.
> If job.getTaskAttemptCompletionEvents invoked because of task in SUCCEEDED state ,but
before JOB_TASK_ATTEMPT_COMPLETED event scheduled,the test case will fail.



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