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Posted to mapreduce-dev@hadoop.apache.org by Ted Yu <yu...@gmail.com> on 2010/08/23 18:02:38 UTC

Obtaining active TaskTrackers

Hi,
How can I obtain the list of active TaskTrackers programmatically ?
I looked at machines.jsp which uses a reference to JobTracker

How do I obtain JobTracker reference from client ?

Thanks

Re: Obtaining active TaskTrackers

Posted by "M. C. Srivas" <mc...@gmail.com>.

      JobClient client = new JobClient(jconf);
      Collection<String> trackers =
        client.getClusterStatus(true).getActiveTrackerNames();


On Mon, Aug 23, 2010 at 9:02 AM, Ted Yu <yu...@gmail.com> wrote:

> Hi,
> How can I obtain the list of active TaskTrackers programmatically ?
> I looked at machines.jsp which uses a reference to JobTracker
>
> How do I obtain JobTracker reference from client ?
>
> Thanks
>