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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-15043) Fix and re-enable flaky test: mllib.stat.JavaStatisticsSuite.testCorr
Date Sun, 01 May 2016 07:55:12 GMT

    [ https://issues.apache.org/jira/browse/SPARK-15043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15265655#comment-15265655
] 

Sean Owen commented on SPARK-15043:
-----------------------------------

I'll take a look and try to fix it. I didn't see that one while testing but might be some
odd order of evaluation in the RDD that makes this tiny difference.

> Fix and re-enable flaky test: mllib.stat.JavaStatisticsSuite.testCorr
> ---------------------------------------------------------------------
>
>                 Key: SPARK-15043
>                 URL: https://issues.apache.org/jira/browse/SPARK-15043
>             Project: Spark
>          Issue Type: Bug
>          Components: MLlib
>    Affects Versions: 2.0.0
>            Reporter: Josh Rosen
>            Priority: Blocker
>
> It looks like the {{mllib.stat.JavaStatisticsSuite.testCorr}} test has become flaky:
> https://spark-tests.appspot.com/tests/org.apache.spark.mllib.stat.JavaStatisticsSuite/testCorr
> The first observed failure was in https://spark-tests.appspot.com/builds/spark-master-test-maven-hadoop-2.6/816
> {code}
> java.lang.AssertionError: expected:<0.9986422261219262> but was:<0.9986422261219272>
> 	at org.apache.spark.mllib.stat.JavaStatisticsSuite.testCorr(JavaStatisticsSuite.java:75)
> {code}
> I'm going to ignore this test now, but we need to come back and fix it.



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