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From stack <st...@duboce.net>
Subject Re: Looking for simple hbase map/reduce example
Date Fri, 25 Sep 2009 21:32:25 GMT
On Fri, Sep 25, 2009 at 2:09 PM, terryg <fontspec-website@yahoo.com> wrote:

> I'm working on a map/reduce java program for performing a comparison of
> columns in a single record and then reporting the percent matched.   From
> what I have read the comparison portion would occur during the map step,
> and
> the reduce step would then aggregate the totals to come up with a percent
> matched for each field.
> What i'm trying to find are some simple map/reduce hbase examples for 0.20
> API.   Can anyone point me in the direction of some?

See content of org.apache.hadoop.hbase.mapreduce package.  Checkout in
particular the RowCounter.

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