Aman, Lars,
If I already know in advance that a particular region
holds the data of my interest, then how can I use Coprocessor to
operate on that region only and not on all the regions of a particular
table??Thank you.
Regards,
Mohammad Tariq
On Wed, Jun 27, 2012 at 11:57 PM, Lars George <[email protected]> wrote:
> Hi Mohammad,
>
> Not sure I follow. :(
>
> Coprocessor is not MapReduce. MapReduce already takes care to run your code
> local to the data.
>
> Coprocessors can be seen like lightweight Map-only MapReduce job.
>
> You need to share a few more details for us to be able to help.
>
> Thanks,
> Lars
>
> On Jun 26, 2012, at 7:44 PM, Mohammad Tariq wrote:
>
>> Hello Lars,
>>
>> Thank you so much for the quick response.Actually, I want to
>> run my MapReduce jobs on a region that contains a specific set of
>> data.
>>
>> Regards,
>> Mohammad Tariq
>>
>>
>> On Tue, Jun 26, 2012 at 9:18 PM, Lars George <[email protected]> wrote:
>>> Hi Mohammad,
>>>
>>> The code runs on the server which is opening the region. It sounds to me
>>> that this is not what you want and that you need to have access to some
>>> sort of resources only available on one specific server? Because if that is
>>> not the case, then you are simply using the coprocessors the wrong way IMHO.
>>>
>>> Lars
>>>
>>> On Jun 26, 2012, at 6:44 PM, Mohammad Tariq wrote:
>>>
>>>> Hello list,
>>>>
>>>> Is it possible to use Coprocessors on some specific
>>>> regionservers instead of a per-region basis??As per my understanding a
>>>> coprocessor allows us to run the code directly on each region
>>>> server.Please correct me if I am wrong.Many thanks.
>>>>
>>>> Please correct me if I am wrong.
>>>> Regards,
>>>> Mohammad Tariq
>>>
>
