Server 2008 R2
Openfire 3.81 + Fastpath.
I can only get about 5-7 days of uptime and then I start getting Java out of memory errors. This is a VM with 8 cores and 8GB of ram dedicated to it but I have never been able set Openfire to use more then 1024.
Running Openfire as a service, I have setup the openfire-server.vmoptions file with this in it.
If I increase it higher then 1024 the service will not start.
I have about 500 users on the server and more planned if I can keep it stable.