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From "Matthias J. Sax (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-2596) Failing Test: RandomSamplerTest
Date Fri, 28 Aug 2015 21:48:45 GMT
Matthias J. Sax created FLINK-2596:
--------------------------------------

             Summary: Failing Test: RandomSamplerTest
                 Key: FLINK-2596
                 URL: https://issues.apache.org/jira/browse/FLINK-2596
             Project: Flink
          Issue Type: Bug
            Reporter: Matthias J. Sax
            Priority: Critical


{noformat}
Tests run: 17, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 14.925 sec <<< FAILURE!
- in org.apache.flink.api.java.sampling.RandomSamplerTest

testReservoirSamplerWithMultiSourcePartitions2(org.apache.flink.api.java.sampling.RandomSamplerTest)
Time elapsed: 0.444 sec <<< ERROR!

java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeLo(TimSort.java:747)
at java.util.TimSort.mergeAt(TimSort.java:483)
at java.util.TimSort.mergeCollapse(TimSort.java:410)
at java.util.TimSort.sort(TimSort.java:214)
at java.util.TimSort.sort(TimSort.java:173)
at java.util.Arrays.sort(Arrays.java:659)
at java.util.Collections.sort(Collections.java:217)
at org.apache.flink.api.java.sampling.RandomSamplerTest.transferFromListToArrayWithOrder(RandomSamplerTest.java:375)
at org.apache.flink.api.java.sampling.RandomSamplerTest.getSampledOutput(RandomSamplerTest.java:367)
at org.apache.flink.api.java.sampling.RandomSamplerTest.verifyKSTest(RandomSamplerTest.java:338)
at org.apache.flink.api.java.sampling.RandomSamplerTest.verifyRandomSamplerWithSampleSize(RandomSamplerTest.java:330)
at org.apache.flink.api.java.sampling.RandomSamplerTest.verifyReservoirSamplerWithReplacement(RandomSamplerTest.java:290)
at org.apache.flink.api.java.sampling.RandomSamplerTest.testReservoirSamplerWithMultiSourcePartitions2(RandomSamplerTest.java:212)

Results :

Tests in error:

RandomSamplerTest.testReservoirSamplerWithMultiSourcePartitions2:212->verifyReservoirSamplerWithReplacement:290->verifyRandomSamplerWithSampleSize:330->verifyKSTest:338->getSampledOutput:367->transferFromListToArrayWithOrder:375
ยป IllegalArgument
{noformat}

https://travis-ci.org/apache/flink/jobs/77750329



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