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From "Dmytro Molkov (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-892) command line tool to list all tasktrackers and their status
Date Wed, 26 Aug 2009 01:03:59 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Dmytro Molkov updated MAPREDUCE-892:

    Attachment: 0001-First-iteration-of-adding-the-task-tracker-reporting.patch

This patch adds a new command line argument to the JobClient: -list-trackers-info
It is an improvement of -list-active-trackers/-list-blacklisted-trackers that actually prints
out information about a number of tasks currently running on the tracker, tasks progress,
maximum task capacity, etc.

Also added a jsp page that returns all the same info in JSON format

> command line tool to list all tasktrackers and their status
> -----------------------------------------------------------
>                 Key: MAPREDUCE-892
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-892
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: dhruba borthakur
>            Assignee: Dmytro Molkov
>         Attachments: 0001-First-iteration-of-adding-the-task-tracker-reporting.patch
> The "hadoop mradmin -report" could list all the tasktrackers that the JobTracker knows
about. It will also list a brief status summary for each of the TaskTracker. (This is similar
to the hadop dfsadmin -report command that lists all Datanodes)

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