Why is there many instances of "fsevent_watch" under Ruby in mac?

Question

Now I have 21 instances of "fsevent_watch" for which the parent process & process group is "ruby".

I am developing a rails project but nothing is currently running now. The server I started earlier was closed by using cntrl+C. I am on a mac.

How is it getting created? Shouldn't it be closed after the ruby application is closed?

Answer 1

It is caused by spring server that is running in the background for your Rails application.

You can check the spring status by,

spring status

Then, stop the spring server by,

spring stop

This will kill/close all the active processes that you see.