Hi Cheolsoo,
This is where its hanging -
*pWeek = FILTER gTWeek BY PERIOD == $previousPeriod;*

org/apache/pig/backend/hadoop/executionengine/mapReduceLayer/
PigGenericMapBase.java:

protected void *runPipeline*(PhysicalOperator leaf) throws IOException,
InterruptedException {
        while(true){
            Result res = leaf.getNext(DUMMYTUPLE);
            if(res.returnStatus==POStatus.STATUS_OK){
                collect(outputCollector,(Tuple)res.result);
                continue;
            }
....

Cheers,
Suhas.
On Thu, Mar 6, 2014 at 5:56 PM, Cheolsoo Park <[EMAIL PROTECTED]> wrote:
 
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