why you rely on the PID?
im not sure about CentOS actually but it should also be possible to simply start it in a screen + a script which auto restarts if the executable stops (instead of running it in background or restarting using a cronjob whatever)

This is a bugtracker, not a board about 'How things should be done'...

And naturally
Stuff that works differently wont get touched a lot even if bugged