In the Pig code base check out 
src/org/apache/pig/backend/hadoop/executionengine/mapReduceLayer/MRCompiler.java
 and 
src/org/apache/pig/backend/hadoop/executionengine/mapReduceLayer/JobControlCompiler.java

These are the classes the control the generation of MapReduce jobs.

Alan.

On Feb 25, 2013, at 1:39 PM, Preeti Gupta wrote:

>> a set of MapReduce jobs
> 
> On Feb 25, 2013, at 1:35 PM, Alan Gates <[email protected]> wrote:
> 
>> Pig generates several DAGs (a logical plan, a physical plan, a set of 
>> MapReduce jobs).  Which one are you interested in?  
>> 
>> Alan.
>> 
>> On Feb 25, 2013, at 12:02 PM, Preeti Gupta wrote:
>> 
>>> Hi,
>>> 
>>> I need to do some modifications here and need to know how Pig generates 
>>> DAG. Can someone throw some light on this?
>>> 
>>> regards
>>> 
>>> preeti
>> 
> 

Reply via email to