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Posted to mapreduce-dev@hadoop.apache.org by "Ahmed Hussein (Jira)" <ji...@apache.org> on 2020/01/16 14:24:00 UTC

[jira] [Created] (MAPREDUCE-7259) testSpeculateSuccessfulWithUpdateEvents fails Intermittently

Ahmed Hussein created MAPREDUCE-7259:
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             Summary: testSpeculateSuccessfulWithUpdateEvents fails Intermittently  
                 Key: MAPREDUCE-7259
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7259
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Ahmed Hussein
            Assignee: Ahmed Hussein


{{TestSpeculativeExecutionWithMRApp.testSpeculateSuccessfulWithUpdateEvents}} fails Intermittently with the exponential estimator. The problem happens because assertion fails waiting for the MRApp to stop.
There maybe a need to redesign the test case because it does not work very well because of the racing and the timing between the speculator and the tasks. It works fine for the legacy estimator because the estimate is based on start-end rate. 



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