Why does the Redis server shut down after 20 days and enter the message NOAUTH Authentication required.?

Question

Redis

Hello!
I use in a project on Laravel 4 Redis server for push notifications.
I am running it and nodejs using pm2.
Everything works well, but after 20 days, at the moment when
Push Notifications should work, I suddenly see the NOAUTH Authentication required message.
If you restart the radish, then everything works fine again for 20 days.
Please tell me, what could be the problem?

Answer 1

Cookies are probably burning. The authentication message says just that.
Therefore, you need to re-login.

Answer 2

I observed an interesting bug of radish on default settings, if you write hard and write into it, it falls.