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From Alex Spodinets <spodin...@gmail.com>
Subject Re: Map\Reduce for one row
Date Tue, 11 Aug 2009 16:07:47 GMT
I do know the row. I want MR job to be run on the closest server to where
data is. So this MR job will process only data for this one row.

Thanks,
Alex.

On Tue, Aug 11, 2009 at 6:50 PM, stack <stack@duboce.net> wrote:

> On Tue, Aug 11, 2009 at 7:35 AM, Alex Spodinets <spodinets@gmail.com>
> wrote:
>
> > Hello,
> >
> > Is it possible to run a Map\Reduce job for only one row in table? Thus
> > skipping the unnecessary cycling through other rows by ignoring them
> > manually or via "skip mode".
> >
>
> The idea behind it is to use Map\Reduce more like an application server
> with
> > data location awareness vs batch\parallel processing system.
> >
>
> Please add more description.  I'm having trouble understanding what you are
> asking.
>
> + If you know the row you want, just ask hbase -- you don't have to go via
> MR.
> + MR is usually offline/batch operations but when you say things like
> 'application server' I get the sense you are talking about real-time
> lookups?
>
> Thanks,
> St.Ack
>

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