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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2048) DISTCP mapper should report progress more often
Date Thu, 25 Oct 2007 18:22:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12537682
] 

Hudson commented on HADOOP-2048:
--------------------------------

Integrated in Hadoop-Nightly #282 (See [http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/282/])

> DISTCP mapper should report progress more often
> -----------------------------------------------
>
>                 Key: HADOOP-2048
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2048
>             Project: Hadoop
>          Issue Type: Bug
>            Reporter: Runping Qi
>            Assignee: Chris Douglas
>            Priority: Blocker
>             Fix For: 0.15.0
>
>         Attachments: 2048-3.patch, 2048-4.patch, 2048-5.patch
>
>
> When I ran DISTCP to copy files from one dfs to another, I noticed that some mappers
got killed due to failing to report status for 606 seconds. 
> I noticed that the mappers try to make a progress report for every 32MB copied. A better
way to ensure progress is to use a time interval since last report.

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