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https://issues.apache.org/jira/browse/MAPREDUCE-3953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13219902#comment-13219902
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Ravi Gummadi commented on MAPREDUCE-3953:
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My proposal is to fix the NPE issue and allow Gridmix to simulate such jobs (
succeeded-jobs-with-task-failures of trace file). Because, currently Gridmix
doesn't simulate failed tasks, those tasks will pass in simulated job and their
inputDataSize and outputDataSize is assumed to be zero.
> 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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