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From Chandraprakash Bhagtani <cpbhagt...@gmail.com>
Subject Re: Deploying my job jar on hadoop cluster
Date Sun, 29 Aug 2010 05:40:11 GMT

You just have to run the following command on any of the cluster node

HADOOP_HOME/bin/hadoop jar <job_jar_name> <class_name> <other_args>

this command will automatically copy the jar on all the tasktrackers.

On Sun, Aug 29, 2010 at 6:07 AM, Deepika Khera <Deepika.Khera@avg.com>wrote:

> Hi,
> I want to deploy my map reduce job jar on the Hadoop cluster. I've always
> done that by doing the following -
> 1. Copying the job jar to all datanodes
> 2. Having the job jar on the hadoop classpath on all machines.
> Isn't hadoop capable of copying over the job jar to all machines in the
> cluster? This is what I read (that job tracker copies the job jar, etc) ,
> but if I don't do the above the task trackers cannot find the job. I know I
> am missing something.
> Could someone please let me know how I can run my job without having to
> copy it over all machines in the cluster?
> Thanks,
> Deepika

Thanks & Regards,
Chandra Prakash Bhagtani,
Nokia India Pvt. Ltd.

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