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From "Oleg Ignatenko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-9423) unreliable test: SVMMultiClassTrainerTest.testTrainWithTheLinearlySeparableCase[Data divided on 4 partitions, training with batch size {1}]
Date Wed, 29 Aug 2018 12:59:00 GMT
Oleg Ignatenko created IGNITE-9423:
--------------------------------------

             Summary: unreliable test: SVMMultiClassTrainerTest.testTrainWithTheLinearlySeparableCase[Data
divided on 4 partitions, training with batch size {1}]
                 Key: IGNITE-9423
                 URL: https://issues.apache.org/jira/browse/IGNITE-9423
             Project: Ignite
          Issue Type: Task
          Components: ml
    Affects Versions: 2.6
            Reporter: Oleg Ignatenko


[Teamcity here|https://ci.ignite.apache.org/viewLog.html?buildId=1755119&] complains that
{{SVMMultiClassTrainerTest.testTrainWithTheLinearlySeparableCase}} is unreliable:
{quote}*This test looks flaky:* 
Frequent test status changes: 39 changes out of 128 invocations
Test status change in build without changes: from successful to failed
[View test history »|https://ci.ignite.apache.org/project.html?projectId=IgniteTests24Java8&tab=testDetails&testNameId=5118678405024105955#analysis]{quote}

Output for most recent test failure: {noformat}
SVMMultiClassTrainerTest.testTrainWithTheLinearlySeparableCase[Data divided on 4 partitions,
 training with batch size \{1}] 
java.lang.AssertionError: expected:<0.0> but was:<1.0>
    at org.apache.ignite.ml.svm.SVMMultiClassTrainerTest
.testTrainWithTheLinearlySeparableCase(SVMMultiClassTrainerTest.java:53){noformat}



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