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https://issues.apache.org/jira/browse/MAPREDUCE-443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved MAPREDUCE-443.
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Resolution: Duplicate
Closing as a dupe of MAPREDUCE-457
> snapshot a map-reduce to DFS ... and restore
> --------------------------------------------
>
> Key: MAPREDUCE-443
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-443
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Reporter: eric baldeschwieler
> Assignee: Owen O'Malley
> Priority: Minor
>
> The idea is to be able to issue a command to the job tracker that
> will halt a map-reduce and archive it to a directory in such a way
> that it can later be restarted.
> We could also set a mode that would cause this to happen to a job
> when it fails. This would allow one to debug and restart a failing
> job reasonably, which might be important, for long running jobs. It
> has certainly been important in similar systems I've seen before. One
> could restart with a new jar or work bench a single failing map or reduce.
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