ASF GitHub Bot commented on SAMZA-1388:

GitHub user jmakes opened a pull request:


    SAMZA-1388: Flaky test - TestStatefulTask#testShouldStartAndRestore

    I believe the problem originated from SAMZA-173.
    The core issue is testShouldRestoreStore was not updated to expect 6 
messages after 2 more messages were added to testShouldStartTaskForFirstTime.
    Fixed the issue and refactored the code so the 2 methods wouldn't disagree 
again in the future.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/jmakes/samza samza-1388

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #269
commit 093488a9f63a6409042f4d7c6496b4ca503cd70f
Author: Jacob Maes <jm...@linkedin.com>
Date:   2017-08-11T22:09:58Z

    SAMZA-1388: Flaky test - TestStatefulTask#testShouldStartAndRestore


> Flaky test - TestStatefulTask#testShouldStartAndRestore
> -------------------------------------------------------
>                 Key: SAMZA-1388
>                 URL: https://issues.apache.org/jira/browse/SAMZA-1388
>             Project: Samza
>          Issue Type: Bug
>            Reporter: Jake Maes
>            Assignee: Jake Maes
>             Fix For: 0.14.0
> testShouldStartAndRestore FAILED
>     org.junit.ComparisonFailure: expected:<[4]> but was:<[99]>
>         at org.junit.Assert.assertEquals(Assert.java:123)
>         at org.junit.Assert.assertEquals(Assert.java:145)
>         at 
> org.apache.samza.test.integration.StreamTaskTestUtil.send(StreamTaskTestUtil.scala:235)
>         at 
> org.apache.samza.test.integration.TestStatefulTask.testShouldRestoreStore(TestStatefulTask.scala:134)
>         at 
> org.apache.samza.test.integration.TestStatefulTask.testShouldStartAndRestore(TestStatefulTask.scala:77)
> https://builds.apache.org/job/samza-pr-checks/824/consoleFull
> I think it's because of this commit, which increased the number of messages 
> produced to the topic but didn't adjust the expected number of messages to 
> restore and the code has a race condition if doesn't wait for all the 
> messages to be consumed. 
> https://github.com/apache/samza/commit/12594fb710260b62f9a21a8be785bd8dd5dcdd01

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