Since I upgraded my wordpress to 3.1 the server load started to go up till the server and mysql fail and reboot again and again. I moved to a dedicated server and still have the problem. When I switch to the light WP theme, the load goes a little bit down but still experience server fail!
Apparently, there is something going on at the background that consume the server resources. It is not a specific plugin as I tried to inactivate all of them and activate them one by one but still cant know which one as It gets busier with every plugin I activate. Even without plugins it has a high load. I excluded the visitors high load as the website has been offline for 3 weeks now so the visitors aren't that much when I try to launch the WordPress.
I need professional help for troubleshooting and fixing the problem. Attached is a copy of the error_log