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From "Ravi Gummadi (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3953) Gridmix throws NPE and does not simulate a job if the trace contains null taskStatus for a task
Date Thu, 01 Mar 2012 08:25:59 GMT
Gridmix throws NPE and does not simulate a job if the trace contains null taskStatus for a
task
-----------------------------------------------------------------------------------------------

                 Key: MAPREDUCE-3953
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3953
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Ravi Gummadi
            Assignee: Ravi Gummadi


In a trace file, if a succeeded job contains a failed task, then that task's taskStatus will
be null. This is causing NPE in Gridmix and then Gridmix is ignoring/not-considering such
jobs for simulation. The job could succeed even with failed tasks if the job submitter in
original cluster configured that job to tolerate failures using mapreduce.map.failures.maxpercent
and mapreduce.reduce.failures.maxpercent.

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