Storm worker processes, like many other programs is multithreaded and will attempt to use resources like CPU at its full capacity. Unless you set cpu affinity your self, I don't think storm worker process by default is attached to a single CPU.
Thanks Parth From: "Grant Overby (groverby)" <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Wednesday, July 8, 2015 at 7:24 PM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: Re: Limiting Workers to use only 1 CORE/2GB RAM To get the correct PID (replace user name as appropriate): `su - storm -c jps | grep worker | cut -d ' ' -f 1`
