Yes TD,
I can use tcpdump to see if the data are being accepted by the receiver and if else them are arriving into the IP packet.

Thanks
Em 3/8/14, 4:19, Tathagata Das escreveu:
I am not sure how to debug this without any more information about the source. Can you monitor on the receiver side that data is being accepted by the receiver but not reported?

TD


On Wed, Mar 5, 2014 at 7:23 AM, eduardocalfaia <e.costaalf...@unibs.it <mailto:e.costaalf...@unibs.it>> wrote:

    Hi TD,
    I have seen in the web UI the stage number that result has been
    zero and in
    the field GC Times there is nothing.
    
<http://apache-spark-user-list.1001560.n3.nabble.com/file/n2306/CaptureStage.png>



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