ImportTSV write to remote HDFS concurrently.

[Vadim Vararu]

Hi guys,

I'm trying to run the importTSV job and to write the result into a 
remote HDFS. Isn't it supposed to write data concurrently? Asking cause 
i get the same time with 2 and 4 nodes and i can see that there is only 
1 reduce running.
Where is the bottleneck?
Thanks, Vadim.