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Posted to common-dev@hadoop.apache.org by "Amar Kamat (JIRA)" <ji...@apache.org> on 2008/04/02 16:01:24 UTC
[jira] Updated: (HADOOP-3140) JobTracker should not try to promote
a (map) task if it does not write to DFS at all
[ https://issues.apache.org/jira/browse/HADOOP-3140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Amar Kamat updated HADOOP-3140:
-------------------------------
Attachment: HADOOP-3140-v1.patch
> 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
> Attachments: HADOOP-3140-v1.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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