We are not aware of any memory leaks in monitord. We ran several test cases with sites running for weeks with default alerts.
I would appreciate it if anyone upgrading to rev3 would keep an eye on this and let us know if you see monitord growing without bound. Please include detailed o/s information when you post results.
The last leak I am aware of was in the engine, fixed in (I believe) 5.3 rev1 and 5.2 rev2. This leak would occur if you had cross-process routing going on, the message metadata would leak. Normally not a lot of memory so this would take a while to be noticed.
Rob Abbott
Cloverleaf Emeritus