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https://issues.apache.org/jira/browse/HADOOP-3150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12613892#action_12613892
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Alejandro Abdelnur commented on HADOOP-3150:
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I don't like the fact that we are pushing all the commit logic to the
{{OutputFormat}} implementation. It is making error prone for people
implementing their own OutputFormat to get things wrong.
I would prefer to leave the {{OutputFormat}} interface as it is today and have
a separate interface {{OutputCommitter}} and have an implementation of it for
file based output formats and have an {{OutputCommitterFactory}} that gives you
the right {{OutputCommitter}} for the job {{OutputFormat}}. Similar to how
{{Serializations}} are picked.
> Move task file promotion into the task
> --------------------------------------
>
> Key: HADOOP-3150
> URL: https://issues.apache.org/jira/browse/HADOOP-3150
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Owen O'Malley
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.19.0
>
> Attachments: 3150.patch, patch-3150.txt
>
>
> We need to move the task file promotion from the JobTracker to the Task and
> move it down into the output format.
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