Puma server dies with no reason

Question

I'm running Puma 2.8.2 server for stubbing some of my back end services. Occasionally Puma server just dies without any reason.

There is no errors in error.log And here is excerpt from access.log:

10.210.140.21 - - [15/Oct/2014 09:28:22] "GET /status HTTP/1.1" 200 - 0.0030
- Gracefully stopping, waiting for requests to finish
- Goodbye!
=== puma startup: 2014-10-15 09:28:24 +0100 ===
10.210.140.21 - - [15/Oct/2014 09:28:24] "GET /status HTTP/1.1" 200 - 0.0254

Any thoughts what could cause this?

Answer 1

If this problem is becoming in Heroku and you are using Heroku free dyno, the problem is that you use the free dyno. Because your app goes to sleep after 30 minutes of inactivity.

You can find more info at the following link:

https://devcenter.heroku.com/articles/free-dyno-hours