如何在Puma中启用集群或混合模式，它们是什么？

Question

The readme at https://github.com/schneems/puma_worker_killer says Puma worker killer can only function if you have enabled cluster mode or hybrid mode (threads + worker cluster). If you are only using threads (and not workers) then puma worker killer cannot help keep your memory in control. Puma worker killer can only function if you have enabled cluster mode or hybrid mode (threads + worker cluster). If you are only using threads (and not workers) then puma worker killer cannot help keep your memory in control.

So if I'm using puma on heroku, how do I tell if cluster or hybrid mode is enabled, given that in the puma readme it only talks about clustered mode?

How do I enable cluster mode? How do I enable hybrid mode?

Is that simply done by specifying the number of workers in config/puma.rb in your Rails app's config folder?

Answer 1

Hybrid mode or Cluster mode are the same. Yes you need to specify the number of worker. You will need at least 2 workers to call it to be a cluster. Generally the number of workers depend up on the number for core's your processor has.