On 2.x storm is moving in the direction of the heartbeats going through the supervisor, but in older versions the worker is sending heartbeats to both the supervisor, and to nimbus by way of zookeeper. Also nimbus routinely processes the heartbeats for the workers no matter how it gets them, so the CPU load will increase with the number of workers.
- Bobby On Mon, Nov 26, 2018 at 7:02 PM Mitchell Rathbun (BLOOMBERG/ 731 LEX) < [email protected]> wrote: > When increasing the number of topologies on a worker node, I have noticed > that the cpu usage for Nimbus also increases. I am guessing that this has > to do with an increased number of heartbeats to keep track of/respond to. > However, the supervisor cpu usage does not seem to change. I was under the > impression that worker processes communicated with supervisor, which in > turn communicated with Nimbus through Zookeeper. So why does only the > Nimbus cpu usage seem to increase? >
