Hi,

When I increase the network latency among spark nodes, 

I see compute time (=executor computing time in Spark Web UI) also
increases. 

In the graph attached, left = latency 1ms vs right = latency 500ms.

Is there any communication between worker and driver/master even 'during'
executor computing? or any idea on this result?


<http://apache-spark-user-list.1001560.n3.nabble.com/file/n27779/Screen_Shot_2016-09-21_at_5.png>
 





Thank you very much in advance. 

//gusiri




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