[jira] [Commented] (OOZIE-3105) testJMXInstrumentation from the org.apache.oozie.util.TestMetricsInstrumentation class is flaky

["Peter Cseh (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OOZIE-3105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16248672#comment-16248672 ] 

Peter Cseh commented on OOZIE-3105:
-----------------------------------

This test passes in some jenkins runs and fails on others. 
When the returned value is null then something is wrong and the test should fail. The issue is that we don't know what causes this.
I've messed around with this test a bit and found that the removal of testSamplers() makes testJMXInstrumentation() fail. From this point I'd suggest to look into testSamplers and find out what part is required for the other test to run successfully.


> testJMXInstrumentation from the org.apache.oozie.util.TestMetricsInstrumentation class is flaky
> -----------------------------------------------------------------------------------------------
>
>                 Key: OOZIE-3105
>                 URL: https://issues.apache.org/jira/browse/OOZIE-3105
>             Project: Oozie
>          Issue Type: Sub-task
>          Components: tests
>    Affects Versions: 4.3.0
>         Environment: mvn: 3.5.0
> java: 1.8.0.144
>            Reporter: Artem Ervits
>            Assignee: Artem Ervits
>            Priority: Blocker
>             Fix For: 5.0.0b1
>
>         Attachments: OOZIE-3105-00.patch
>
>
> I'm able to reproduce the test failure consistently by running test in isolation with the following command
> {code}
> mvn clean -Dtest=org.apache.oozie.util.TestMetricsInstrumentation#testJMXInstrumentation test
> {code}
> the test succeeds consistently with the following
> {code}
> mvn clean -Dtest=org.apache.oozie.util.TestMetricsInstrumentation test
> {code}



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