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From "Tom White" <...@cloudera.com>
Subject Re: contrib/ec2 USER_DATA not used
Date Thu, 18 Dec 2008 12:52:00 GMT
Hi Stefan,

The USER_DATA line is a hangover from the way that these parameters
used to be passed to the node. This line can safely be removed, since
the scripts now pass the data in the USER_DATA_FILE as you rightly
point out.

Tom

On Thu, Dec 18, 2008 at 10:09 AM, Stefan Groschupf <sg@101tec.com> wrote:
> Hi,
>
> can someone tell me what the variable USER_DATA in the launch-hadoop-master
> is all about.
> I cant see that it is reused in the script or any other script.
> Isnt the way those parameters are passed to the nodes the USER_DATA_FILE ?
> The line is:
> USER_DATA="MASTER_HOST=master,MAX_MAP_TASKS=$MAX_MAP_TASKS,MAX_REDUCE_TASKS=$MAX_REDUCE_TASKS,COMPRESS=$COMPRESS"
> Any hints?
> Thanks,
> Stefan
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Hadoop training and consulting
> http://www.scaleunlimited.com
> http://www.101tec.com
>
>
>
>

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