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Hadoop >> mail # user >> Can I install two different version of hadoop in the same cluster ?


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Re: Can I install two different version of hadoop in the same cluster ?
Also hadoop.tmp.dir and mapred.local.dir in your xml configuration, and the
environment variables HADOOP_LOG_DIR and HADOOP_PID_DIR in hadoop-env.sh.

- Aaron

On Thu, Oct 29, 2009 at 10:44 PM, Jeff Zhang <[EMAIL PROTECTED]> wrote:

> Hi all,
>
> I have installed hadoop 0.18.3 on my own cluster with 5 machines, now I
> want
> to install hadoop 0.20, but I do not run to uninstall the hadoop 0.18.3.
>
> So what things should I modify to eliminate conflict with hadoop 0.18.3 ? I
> think currently I should modify the data dir and name dir and the ports,
> what else should I take care ?
>
>
> Thank you
>
> Jeff zhang
>