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https://issues.apache.org/jira/browse/HBASE-9485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13838426#comment-13838426
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Nick Dimiduk commented on HBASE-9485:
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With [~vinodkv]'s blessing on the MR semantics, i'm +1 on the patch as posted.
> TableOutputCommitter should implement recovery if we don't want jobs to start
> from 0 on RM restart
> --------------------------------------------------------------------------------------------------
>
> Key: HBASE-9485
> URL: https://issues.apache.org/jira/browse/HBASE-9485
> Project: HBase
> Issue Type: Bug
> Components: mapreduce
> Reporter: Ted Yu
> Assignee: Ted Yu
> Attachments: 9485-v2.txt
>
>
> HBase extends OutputCommitter which turns recovery off. Meaning all completed
> maps are lost on RM restart and job starts from scratch. FileOutputCommitter
> implements recovery so we should look at that to see what is potentially
> needed for recovery.
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