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From "Peter Bacsko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-6856) TestRecovery.testSpeculative fails if testCrashed fails
Date Fri, 03 Mar 2017 16:50:45 GMT
Peter Bacsko created MAPREDUCE-6856:

             Summary: TestRecovery.testSpeculative fails if testCrashed fails
                 Key: MAPREDUCE-6856
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6856
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Peter Bacsko
            Assignee: Peter Bacsko

The test {{testSpeculative}} in {{org.apache.hadoop.mapreduce.v2.app.TestRecovery}} is unstable.

Based on my findings, the test itself is not problematic. It only fails if {{testCrashed}}
in the same class fails before it.

The reason is not completely clear to me, but I whenever I explicitly stop the MRAppMaster
in {{testCrashed}} in a finally block, then the issue disappears. I think the reason is that
both tests uses the same folder for staging.

Solution: wrap logic in {{testCrashed}} in a try-finally block and then stop the MRAppMaster.

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