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MapReduce >> mail # user >> Re: Why/When partitioner is used.


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Re: Why/When partitioner is used.
Why not also ask yourself, what if you do not send all keys to the
same reducer? Would you get the results you desire that way? :)

On Fri, Jun 7, 2013 at 4:47 PM, Sai Sai <[EMAIL PROTECTED]> wrote:
> I always get confused why we should partition and what is the use of it.
> Why would one want to send all the keys starting with A to Reducer1 and B to
> R2 and so on...
> Is it just to parallelize the reduce process.
> Please help.
> Thanks
> Sai

--
Harsh J
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB