The system has been chocking under a serious system load for the past 20min. Iv been getting a connection error for about that long.
Either DOS related or System load related.
What you can do.
1) SCSI drives. Are you using them?
2) Forum DB. Is it on a second drive?
3) Ram, do you have at least 4gb?
3) OS - Not Redhat i hope, try FreeBSD it can handle thousands of users when your talking about # of users.
4) Are you running eaccelerator, APC or any type of php cache? If not you should be.
5) Is Apache Optimized?
6) Is BH the only site on this box? Hopefully! Hopefully its not a cheapo VPS setup!
7) Your not using cPanel are you? Nasty overloaded control panel. Preferable you should not be running a CP at all. Try lighthttpd or something that much lighter.
8) Is your OS 64-bit, including MySQL?
9) Thought about running the forum on one box while running the DB access on another? You really should.
10) All system related binaries up-to-date? How about sockets and optimization of systctl.conf?
etc.
You should invest in optimization services for a busy forum like this. Costs you less than 100 bucks. Contact
http://efastconsulting.com. We really can help!