On Apr 22, 2010, at 4:38 PM, Richard Ding wrote:

Yes.

The abstraction layer I was referring to is
src/org/apache/pig/backend/executionengine and
src/org/apache/pig/backend/datastorage.


Thanks for the clarification. +1

Arun

Thanks,
-Richard

-----Original Message-----
From: Arun C Murthy [mailto:[email protected]]
Sent: Thursday, April 22, 2010 4:14 PM
To: [email protected]
Subject: Re: Consider cleaning up backend code

I read it as getting rid of concepts parallel to hadoop in  src/org/
apache/pig/backend/hadoop/datastorage.

Is that true?

thanks,
Arun

On Apr 22, 2010, at 1:34 PM, Dmitriy Ryaboy wrote:

I kind of dig the concept of being able to plug in a different
backend,
though I definitely thing we should get rid of the dead localmode
code. Can
you give an example of how this will simplify the codebase? Is it
more than
just GenericClass foo = new SpecificClass(), and the associated
extra files?

-D

On Thu, Apr 22, 2010 at 1:25 PM, Arun C Murthy <[email protected]>
wrote:

+1

Arun


On Apr 22, 2010, at 11:35 AM, Richard Ding wrote:

Pig has an abstraction layer (interfaces and abstract classes) to
support multiple execution engines. After PIG-1053, Hadoop is the
only
execution engine supported by Pig. I wonder if we should remove this
layer of code, and make Hadoop THE execution engine for Pig. This
will
simplify a lot the backend code.



Thanks,

-Richard







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