Question

I’m having a problem where no matter what I try all Passenger instances are destroyed after an idle period (5 minutes, but sometimes longer). I’ve read the Passenger docs and related questions/answers on Stack Overflow.

My global config looks like this:

PassengerMaxPoolSize 6
PassengerMinInstances 1
PassengerPoolIdleTime 300

And my virtual config:

PassengerMinInstances 1

The above should ensure that at least one instance is kept alive after the idle timeout. I’d like to avoid setting PassengerPoolIdleTime to 0 as I’d like to clean up all but one idle instance.

I’ve also added the ruby binary to my CSF ignore list to prevent the long running process from being culled.

Is there somewhere else I should be looking?

Answer 1

This seems to be quite a common problem for people running Apache on WHM/cPanel:

http://techiezdesk.wordpress.com/2011/01/08/apache-graceful-restart-requested-every-two-hours/

Enabling piped logging sorted the problem out for me.