Re: pig speed in local mode

[Vincent Barat <vb...@ubikod.com>]

So do I !

I use PIG 0.6.x when I'm in development mode, then do some testings 
in 0.8.0 before going to production.

PIG 0.6.0 local mode is SO fast that I cannot get rid of it.

Le 30/09/10 22:40, Konstantin Ignatyev a écrit :
> Thanks.
>
> I however wold rise my hands and feet to vote in support of faster
> turnaround during development provided that execution path is not materially
> different from production path.
>
> The slowness of simple edit-try cycle is soo last century :)
>
> Cheers!
>
> On Thu, Sep 30, 2010 at 1:34 PM, Dmitriy Ryaboy<dv...@gmail.com>  wrote:
>
>> Konstantin,
>> We explicitly chose to take out the thing that made Pig fast (faster,
>> anyway) in local mode because it exercised a different code path than
>> Hadoop-mode execution, which led to odd bugs and inconsistencies.
>>
>> That being said, I think that with some work we could make local run a bit
>> faster, by pre-initializing the local hadoop threads and recycling them
>> between executions. This would be future work, though.. right now there is
>> no alternative.
>>
>> You could of course downgrade to Pig 0.6, which is the last version to have
>> the fast local mode implementation. But then you have to watch out for the
>> aforementioned issues with unexpected differences vs hadoop mode.
>>
>> -Dmitriy
>>
>> On Thu, Sep 30, 2010 at 1:08 PM, Konstantin Ignatyev
>> <kg...@gmail.com>wrote:
>>
>>> Hi,
>>>
>>> I am trying to write pig script that is quite complex so I am testing it
>>> against very small data subset in local mode.
>>> However it might take up to 2 _minutes_ to finish. Or 30 seconds if I
>>> execute only parts of it.
>>>
>>> That is quite annoying to say the least because SQL that I am trying to
>>> reimplement in pig works on the source dataset for 3 seconds only.
>>>
>>> Is there a way to improve PIG's speed in the local/development mode?
>>>
>>>
>>> Thanks
>>> --
>>> Konstantin Ignatyev
>>>
>>> PS: If this is a typical day on planet earth, humans will add fifteen
>>> million tons of carbon to the atmosphere, destroy 115 square miles of
>>> tropical rainforest, create seventy-two miles of desert, eliminate
>> between
>>> forty to one hundred species, erode seventy-one million tons of topsoil,
>>> add
>>> 2,700 tons of CFCs to the stratosphere, and increase their population by
>>> 263,000
>>>
>>> Bowers, C.A. The Culture of Denial: Why the Environmental Movement Needs
>> a
>>> Strategy for Reforming Universities and Public Schools. New York: State
>>> University of New York Press, 1997: (4) (5) (p.206)
>>>
>
>

-- 

*Vincent BARAT, UBIKOD, CTO*


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