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From Alan Gates <ga...@yahoo-inc.com>
Subject Re: Does Pig support multi thread and Hadoop do not support execute multiple jobs at the same time?
Date Fri, 19 Jun 2009 15:16:16 GMT

On Jun 19, 2009, at 2:06 AM, zhang jianfeng wrote:

> First question: I use the one single PigServer to run serveral pig  
> scripts
> in multiple threads, but some exceptions will be throw, so Pig do not
> support multi thread, Is it right ? I just want to make sure.

Correct, Pig is not multi-threaded at this point.  We have tried to  
design it such that changing that in the future would not be too much  
work.  But as we don't test multi-threaded, I'm sure there are some  
shared static variables, etc.

Alan.

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