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From syed kather <in.ab...@gmail.com>
Subject Re: Basic Question on Partitioner,Combiner and Co-Processor
Date Mon, 23 Jul 2012 18:39:38 GMT
In my use case i have Mapper function which emit <userid,seqid>. Number of
Map will be around 10 billion X 2000 user . which is best partition method
which i can follow for my use case ?. Sorry i am first time writing my
partition . So i have this doubt .

Thanks in advance

        S SYED ABDUL KATHER



On Tue, Jul 24, 2012 at 12:03 AM, syed kather <in.abdul@gmail.com> wrote:

> Thanks Shashwat Shriparv..
> Is there any interface or abstract class partitioner avaliable for hbase
> specifically ..
>             Thanks and Regards,
>         S SYED ABDUL KATHER
>
>
>
> On Mon, Jul 23, 2012 at 11:54 PM, shashwat shriparv <
> dwivedishashwat@gmail.com> wrote:
>
>> Check out this link may be will help you..
>>
>> http://developer.yahoo.com/hadoop/tutorial/module5.html#partitioning
>>
>> http://www.ashishpaliwal.com/blog/2012/05/hadoop-recipe-implementing-custom-partitioner/
>>
>>
>> Regards
>>
>>
>> ∞
>> Shashwat Shriparv
>>
>>
>>
>> On Mon, Jul 23, 2012 at 11:22 PM, syed kather <in.abdul@gmail.com> wrote:
>>
>> > Hi ,
>> >
>> >     I am very much interested to know how to implement the custom
>> > Partitioner  . Is there any blog let me know . As i knew the number of
>> > reducer is depends upon the partitioner . Correct me if i am wrong
>> >
>> > How to implement Co-Processor(Min,Max) . Is there any tutorial
>> available on
>> > implementing Co-Processor . This is the first time i am working with
>> > Co-Processor.
>> >
>> > How to use combiner in HBase ( Trying to write the Map-Reduce Program
>> for
>> > finding the Max Value from the HBase Columns )?
>> >
>> > Thanks in advance ..
>> >             Thanks and Regards,
>> >         S SYED ABDUL KATHER
>> >
>>
>>
>>
>> --
>>
>>
>> ∞
>> Shashwat Shriparv
>>
>
>

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