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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-7064) Flaky test TestTaskAttempt#testReducerCustomResourceTypes
Date Wed, 14 Mar 2018 21:34:00 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-7064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16399457#comment-16399457
] 

Hudson commented on MAPREDUCE-7064:
-----------------------------------

ABORTED: Integrated in Jenkins build Hadoop-trunk-Commit #13838 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/13838/])
MAPREDUCE-7064. Flaky test (jlowe: rev 2626ec35e997c06cda975fbfb2b95da740270059)
* (edit) hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TestTaskAttempt.java


> Flaky test TestTaskAttempt#testReducerCustomResourceTypes
> ---------------------------------------------------------
>
>                 Key: MAPREDUCE-7064
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7064
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client, test
>            Reporter: Peter Bacsko
>            Assignee: Peter Bacsko
>            Priority: Major
>             Fix For: 3.1.0, 3.0.2
>
>         Attachments: MAPREDUCE-7064-001.patch, MAPREDUCE-7064-002.patch, MAPREDUCE-7064-003.patch
>
>
> The test {{TestTaskAttempt#testReducerCustomResourceType}} can occasionally fail with
the following error:
> {noformat}
> org.apache.hadoop.yarn.exceptions.ResourceNotFoundException: Unknown resource 'a-custom-resource'.
Known resources are [name: memory-mb, units: Mi, type: COUNTABLE, value: 0, minimum allocation:
0, maximum allocation: 9223372036854775807, name: vcores, units: , type: COUNTABLE, value:
0, minimum allocation: 0, maximum allocation: 9223372036854775807]
> 	at org.apache.hadoop.mapreduce.v2.app.job.impl.TestTaskAttempt.createReduceTaskAttemptImplForTest(TestTaskAttempt.java:434)
> 	at org.apache.hadoop.mapreduce.v2.app.job.impl.TestTaskAttempt.testReducerCustomResourceTypes(TestTaskAttempt.java:1535)
> {noformat}
> The root cause seems to be an interference from previous tests that start instance(s)
of {{FailingAttemptsMRApp}} or {{FailingAttemptsDuringAssignedMRApp}}. When I disabled these
tests, {{testReducerCustomResourceTypes}} always passed.



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