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https://issues.apache.org/jira/browse/MAPREDUCE-5468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13744965#comment-13744965
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Jason Lowe commented on MAPREDUCE-5468:
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Are there logs from the AM attempts when this occurred? Last I checked, the AM
will recover map tasks if they completed before the AM restarted.
> AM recovery does not work for map only jobs
> -------------------------------------------
>
> Key: MAPREDUCE-5468
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5468
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: yeshavora
> Assignee: Vinod Kumar Vavilapalli
>
> Map only job (randomwriter, randomtextwriter) restarts from scratch [0% map
> 0% reduce] after RM restart.
> It should resume from the last state when AM restarted.
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