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From terryg <fontspec-webs...@yahoo.com>
Subject Re: Looking for simple hbase map/reduce example
Date Sat, 26 Sep 2009 13:50:57 GMT

Thank you for your reply.   I had previously found Kevin Peterson's example,
but it lacks a reduce step as does the RowCount example.   Does anyone know
of a good 0.20 reduce example?

stack-3 wrote:
> 
> Or better,
> http://kdpeterson.net/blog/2009/09/minimal-hbase-mapreduce-example.html
> St.Ack
> 
> On Fri, Sep 25, 2009 at 2:32 PM, stack <stack@duboce.net> wrote:
> 
>> 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.
>> Yours,
>> St.Ack
>>
>>
> 
> 

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