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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-14702) TestZKProcedureControllers.testZKCoordinatorControllerWithSingleMemberCohort is a flakey
Date Tue, 27 Oct 2015 05:37:27 GMT

     [ https://issues.apache.org/jira/browse/HBASE-14702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack resolved HBASE-14702.
---------------------------
       Resolution: Fixed
         Assignee: stack
    Fix Version/s: 1.3.0
                   1.2.0
                   2.0.0

Pushed to branch-1.2+

> TestZKProcedureControllers.testZKCoordinatorControllerWithSingleMemberCohort is a flakey
> ----------------------------------------------------------------------------------------
>
>                 Key: HBASE-14702
>                 URL: https://issues.apache.org/jira/browse/HBASE-14702
>             Project: HBase
>          Issue Type: Sub-task
>          Components: flakey, test
>            Reporter: stack
>            Assignee: stack
>             Fix For: 2.0.0, 1.2.0, 1.3.0
>
>         Attachments: 14702.txt
>
>
> Tests fail in TestZKProcedureControllers with some regularity. Here is an example: https://builds.apache.org/view/H-L/view/HBase/job/HBase-1.3/309/jdk=latest1.8,label=Hadoop/testReport/org.apache.hadoop.hbase.procedure/TestZKProcedureControllers/testZKCoordinatorControllerWithSingleMemberCohort/
> {code}
> org.mockito.exceptions.verification.TooManyActualInvocations: 
> procedureMember.submitSubprocedure(<any>);
> Wanted 1 time:
> -> at org.apache.hadoop.hbase.procedure.TestZKProcedureControllers.verifyCohort(TestZKProcedureControllers.java:364)
> But was 2 times. Undesired invocation:
> -> at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.startNewSubprocedure(ZKProcedureMemberRpcs.java:214)
> 	at org.apache.hadoop.hbase.procedure.TestZKProcedureControllers.verifyCohort(TestZKProcedureControllers.java:364)
> 	at org.apache.hadoop.hbase.procedure.TestZKProcedureControllers.runMockCommitWithOrchestratedControllers(TestZKProcedureControllers.java:235)
> 	at org.apache.hadoop.hbase.procedure.TestZKProcedureControllers.testZKCoordinatorControllerWithSingleMemberCohort(TestZKProcedureControllers.java:158)
> {code}
> Tests in this suite fail always in this Mockito verify step. Always double the number
of calls expected. Strikes me as a Mockito bug or Mockito usage interesting behavior. Unless
someone intercedes, I'm just going to loosen this assert to be at least N rather than exactly
N.
> Lets see if it fails again soon... so I have another example to paste in here.



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