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Pig >> mail # user >> How can I split the data with more reducers?


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Haitao Yao 2012-09-16, 02:08
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Haitao Yao 2012-09-16, 02:50
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Re: How can I split the data with more reducers?
Still would like to see the script or the explain plan..

D

On Sat, Sep 15, 2012 at 7:50 PM, Haitao Yao <[EMAIL PROTECTED]> wrote:
> No, I also thought it is a mapper , but It surely is a reducer. all the mappers succeeded and the reducer failed.
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> Haitao Yao
> [EMAIL PROTECTED]
> weibo: @haitao_yao
> Skype:  haitao.yao.final
>
> On 2012-9-16, at 上午10:08, Haitao Yao wrote:
>
>> Hi,
>>       I 'v encountered a problem: the job failed because of POSplit retained too much memory in the reducer. How can I specify more reducers for the spill?
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>>       Here's the screen snapshot of the Heap dump.
>>       <aa.jpg>
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>> And here's the snippet of my split script:
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>>       split RawData into AURawData if type == 2, NURawData if type == 1, InRawData if type == 9, GCData if type == 61, HCData if type == 71, TutorialRawData if type == 3 or t    ype == 15;
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>> There's 3 similar split clause in my script. The reducer count is always 1. How can I increase it?
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>> Thanks.
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>>
>>
>> Haitao Yao
>> [EMAIL PROTECTED]
>> weibo: @haitao_yao
>> Skype:  haitao.yao.final
>>
>
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Haitao Yao 2012-09-16, 09:05
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Haitao Yao 2012-09-16, 09:18
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Dmitriy Ryaboy 2012-09-17, 05:01
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Haitao Yao 2012-09-17, 08:53
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Dmitriy Ryaboy 2012-09-17, 09:07
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Haitao Yao 2012-09-17, 09:26
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Dmitriy Ryaboy 2012-09-16, 02:39