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

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

>  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
>

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
>>
>