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From "Jim R. Wilson" <wilson.ji...@gmail.com>
Subject Re: hbase on ec2 with s3 anyone?
Date Wed, 07 May 2008 20:51:10 GMT
>  keep the questions coming. will be glad to see HBase running on ec2, maybe
> we can put your changes back into the tree.

Thanks :)

Just prior to this excursion, I found some things needing tweaking to
work with my hosting provider.  Now that I'm moving to ec2, I'll be on
the lookout for similar issues.  I'll submit any patches I end up
making.

-- Jim

On Wed, May 7, 2008 at 3:39 PM, Chris K Wensel <chris@wensel.net> wrote:
>
> > In the aforementioned EC2 wiki page, it has a configuration section
> > labeled "(Pre 0.17) Hadoop cluster variables (GROUP, MASTER_HOST,
> > NO_INSTANCES)".  I had assumed that I would actually need hadoop-0.17
> > on my ec2 instances in order to forgo those instructions.  It sounds
> > like you're telling me that all the "pre 0.17" or "0.17" specific
> > instructions in the wiki page refer only to the ec2 creation scripts,
> > not the actual running version in the cluster, is that correct?
> >
> >
>
>  correct.
>
>  the only reason these scripts are in the 0.17 branch is because they are
> not backward compatible with themselves.
>
>
>
> > Also, how safe is it to run a different version of the ec2 scripts
> > from the actual running hadoop instance?  I'm guessing it's pretty
> > safe since you suggested it :)
> >
> >
>
>  there are no dependencies between the EC2 scripts and Hadoop core. you can
> use them with any version, as long as you build EC2 Images for the versions
> of Hadoop you are after with the 'new' scripts.
>
>
>
> > Thanks again for all the help - still wrapping my mind around this stuff.
> >
> >
>
>  keep the questions coming. will be glad to see HBase running on ec2, maybe
> we can put your changes back into the tree.
>
>
>
>  Chris K Wensel
>  chris@wensel.net
>  http://chris.wensel.net/
>  http://www.cascading.org/
>
>
>
>
>

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