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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3150) Move task file promotion into the task
Date Wed, 16 Jul 2008 09:47:32 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12613892#action_12613892
] 

Alejandro Abdelnur commented on HADOOP-3150:
--------------------------------------------

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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