Sometimes my guest always Kick Out

[geevest.com]

Hello i have a trouble with my site.
i dont know why.
sometimes if all guests online in my forums.
example : Currently active users 1000(400 members and 600guests).
and then several minutes later all my guests always kickout from my site :
example : Currently active users 400(400 members and 0guests).

what's wrong with this?
and im always get a blank page for 1minute.its always happen.

i take VPS server.if i get a blank page and then restart HTTP Server (Apache) Its Normal again.
thanks

-bash-3.1# w

Philip S: 14:58:44 up 9 days, 1:23, 0 users, load average: 22.77, 24.78, 17.25

Philip S: USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT

Philip S: this is the current load on the vps

Philip S: 8128 nobody 16 0 37580 21m 3724 R 36 4.2 0:00.61 httpd

Philip S: 7897 nobody 15 0 34380 17m 3724 R 15 3.5 0:00.51 httpd

Philip S: 9809 nobody 15 0 33752 17m 3604 R 15 3.4 0:00.08 httpd

Philip S: 7955 nobody 15 0 36412 20m 3700 R 13 4.0 0:00.30 httpd

Philip S: 9315 nobody 16 0 32268 15m 3412 R 11 3.0 0:00.09 httpd

[Lynne]

check your mysql logs to see if mysql is getting restarted.

[geevest.com]

how i can check that (mysql logs) ?
because until now i have a same problem.thx

[Lynne]

I'm not sure where yours is, but mine is in var/lib/mysql and is named mysite.err

[snakes1100]

Log files are typically in /var/log, thats if mysql is set to log errors, check my.cnf to see if it is.

If you have a 22.77 load on the vps, you may have other issues anyways.

[geevest.com]

im not understand about this.

before this im using eukhost dedicated server for 1month. the support is very bad.
everyday my site always down.im running at dedicated support at eukhost for 1week,every day my site down.
and they cant refund my money.they always push me to upgrade in to high level dedicated server.if i cant upgrade my server they not guarantee for my data (lost) that so crazy.and they want me pay 10GBP.but im not.
because that im out from eukhost and i take liquidweb. the support is very good better than eukhost.
liquidweb is the best hosting.i like they support.