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From "Robert Metzger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4878) ReduceTaskExternalITCase.testMultiLevelMergeCombiningReduceTask test instable
Date Fri, 21 Oct 2016 12:25:58 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15594938#comment-15594938
] 

Robert Metzger commented on FLINK-4878:
---------------------------------------

Fixed logging, so that we can understand the issue better in the future: https://github.com/apache/flink/commit/7398fdbfe024652b4299b582c2e1559da473011d

> ReduceTaskExternalITCase.testMultiLevelMergeCombiningReduceTask test instable
> -----------------------------------------------------------------------------
>
>                 Key: FLINK-4878
>                 URL: https://issues.apache.org/jira/browse/FLINK-4878
>             Project: Flink
>          Issue Type: Bug
>          Components: Local Runtime
>    Affects Versions: 1.2.0
>            Reporter: Robert Metzger
>              Labels: test-stability
>
> The {{ReduceTaskExternalITCase.testMultiLevelMergeCombiningReduceTask}} test failed with
the following error
> {code}
> testMultiLevelMergeCombiningReduceTask[0](org.apache.flink.runtime.operators.ReduceTaskExternalITCase)
 Time elapsed: 0.233 sec  <<< FAILURE!
> java.lang.AssertionError: Invoke method caused exception.
> 	at org.junit.Assert.fail(Assert.java:88)
> 	at org.apache.flink.runtime.operators.ReduceTaskExternalITCase.testMultiLevelMergeCombiningReduceTask(ReduceTaskExternalITCase.java:193)
> {code}
> Here is the log https://s3.amazonaws.com/archive.travis-ci.org/jobs/169181202/log.txt
> Sadly, the test is not logging the exception at INFO level, so we can not really understand
what's going on.
> I'll push a commit improving the logging.



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