I’m running openfire 3.7.0 on a Ubuntu Server 10.04 with sun-java6-jre, about 100 users, AD authentication and Broadcast, Client Control, Content Filter, Monitoring Service, MotD and Packet Filter plugins enabled.
About every 10 days openfire crash beacause it saturates the Java memory assigned (384MB); I’ve already tried to increase the amount of memory but it causes to only delay the problem.
You’ll have to download it on the java-monitor.com website (and you have to register there, as it pushes those memory/cpu etc. informations to their server)