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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3140) JobTracker should not try to promote a (map) task if it does not write to DFS at all
Date Fri, 04 Apr 2008 07:53:24 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amar Kamat updated HADOOP-3140:
-------------------------------

    Status: Patch Available  (was: Open)

> JobTracker should not try to promote a (map) task if it does not write to DFS at all
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-3140
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3140
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Runping Qi
>            Assignee: Amar Kamat
>             Fix For: 0.17.0
>
>         Attachments: HADOOP-3140-v1.patch, HADOOP-3140-v2.patch, HADOOP-3140-v3.patch
>
>
> In most cases, map tasks do not write to dfs.
> Thus, when they complete, they should not be put into commit_pending queue at all.
> This will improve the task promotion significantly.
>  

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