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https://issues.apache.org/jira/browse/MAPREDUCE-2171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927720#action_12927720
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Kang Xiao commented on MAPREDUCE-2171:
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Hi scott, we are not using RecoveryManager on our cluster. We have tested the
fuction of RecoveryManager and found that it chould not satisfy our demand on
task level recovery.
> job recovery mechanism
> ----------------------
>
> Key: MAPREDUCE-2171
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2171
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobtracker, tasktracker
> Reporter: Kang Xiao
>
> A job recovery mechanism to enable a job to re-execute only failed task upon
> job failed or jobtracker/tasktracker restart.
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