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From tom <t...@arcor.de>
Subject Re: Hbase MapReduce
Date Sat, 24 Nov 2012 17:46:57 GMT
Hi, but you do not need to us M/R. You could also use coprocessors.

See this site:
-> in the section "Endpoints"

An aggregation coprocessor ships with hbase that should match your 
You just need to load it and eventually you can access it from HTable:



Am 24.11.2012 18:32, schrieb Marcos Ortiz:
> Regards, Dalia.
> You have to use MapReduce for that.
> In the HBase in Practice┬┤s book, there are lot of great examples for 
> this.
> On 11/24/2012 12:15 PM, Dalia Sobhy wrote:
>> Dear all,
>> I wanted to ask a question..
>> Do Hbase Aggregate Functions such as rowcount, getMax, get Average 
>> use MapReduce to execute those functions?
>> Thanks :D

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