React create app hot reload is not always working on linux

Question

I created a react application using create-react-app boilerplate, which seems to be very popular, hot reload some times updates when any of the files changes and some times

Answer 1

In unbuntu, i basically kill all the process running on port (for react app default is :3000).

List all the process running on port 3000.

lsof -i :3000

This command will show something like this.

COMMAND   PID USER   FD   TYPE  DEVICE SIZE/OFF NODE NAME
node     7429 yipl   19u  IPv4 1081760      0t0  TCP localhost:3000->localhost:35762 (ESTABLISHED)
chrome  26448 yipl  177u  IPv4 1080082      0t0  TCP localhost:35762->localhost:3000 (ESTABLISHED)

Now kill the process by PID.

kill -9 7429
kill -9 26488

Start your react app again.