Yes, just look at the application UI on http://<driver-node>:4040

Matei

On Nov 11, 2013, at 12:26 AM, Wenlei Xie <[email protected]> wrote:

> Hi,
> 
> I have some shuffling task which is supposed to have may repeated values, 
> thus I assume the shuffling compress would help the performance .
> 
> However I get very similar running time whether I set spark.shuffle.compress 
> to be true/false. I would like to know whether it's because my data cannot be 
> compressed or not. Is there any way to monitor the data shuffled for one 
> transformation? 
> 
> Best,
> Wenlei

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