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From "Kang Xiao (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-2171) job recovery mechanism
Date Wed, 03 Nov 2010 02:30:39 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927720#action_12927720
] 

Kang Xiao commented on MAPREDUCE-2171:
--------------------------------------

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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