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From nguyenhuynh <nguyenhu...@asnet.com.vn>
Subject Re: Number map task and reduce?
Date Mon, 16 Feb 2009 06:55:07 GMT
stack wrote:

> Tell us more about size of your job, what you are doing and size of your
> machines?  In general, start small -- one mapper and one reduce per machine
> and then if that works without problem, scale up.
> St.Ack
>
>
> On Sun, Feb 15, 2009 at 8:14 PM, nguyenhuynh <nguyenhuynh@asnet.com.vn>wrote:
>
>   
>> Hi all!,
>>
>>
>> I have 3 machines use to run Hadoop/hbase map-reduce. I don't known set
>> value for number map tasks and reduces.
>>
>>
>> How many number of task and reduce in this case?
>>
>>
>> Please, help me!
>>
>> Thanks,
>>
>>
>> Regards,
>>
>> NguyenHuynh
>>
>>
>>
>>     
>
>   
Thanks for your response,

- I use JobControl  to control jobs:
    - Job1: import Uris from text file to Hbase (7000 Uri),
    - Job2: Fetch Uris to get content.
    - Job3: extract Uris in content and store to text file.
- I have 3 machines (1 master and 2 slave).

Best regard,
NguyenHuynh


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