What are the pros and cons or some experience when using php/phalcon as a daemon?
Memory leaks where?
If there was a memory leak then it would leak. Probably they would know about it already though.
Use logs and sOme monitoring systems. We have couple Of daemons in Phalcon running for weeks / month without issues
We also use Phalcon daemons about 7 and haven't seen issues for over a year.
This is really interesting topic.
I also run one part of the system with Phalcon as a daemonized process. Works like a charm after fixing things like loosing DB connection after some period of inactivity etc.