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From Shushant Arora <>
Subject user threads in executors
Date Tue, 21 Jul 2015 08:11:46 GMT

Can I create user threads in executors.
I have a streaming app where after processing I have a requirement to push
events to external system . Each post request costs ~90-100 ms.

To make post parllel, I can not use same thread because that is limited by
no of cores available in system , can I useuser therads in spark App? I
tried to create 2 thredas in a map tasks and it worked.

Is there any upper limit on no of user threds in spark executor ? Is it a
good idea to create user threads in spark map task?


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