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https://issues.apache.org/jira/browse/MAPREDUCE-5145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13638152#comment-13638152
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Jason Lowe commented on MAPREDUCE-5145:
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Two is fine for a default for now, although I could see setting this higher to 
make apps more robust to node failures.
                
> Change default max-attempts to be more than one for MR jobs as well
> -------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5145
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5145
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>         Attachments: MAPREDUCE-5145.1.patch
>
>
> We need to give the AM of MR jobs the chance to retry.

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