Don't know if anyone may have any brainwaves with this one. We have a website that is quiet heavily used (delivers 4+ million pages a month). Runs on a Dell Poweredge server, and has run fine for the past two years.
The past few weeks, we've had issues with too many connections to the database. This has the problem that it takes the database down until mysqld is restart, at which point the problem clears and all returns to normal. It could be a week or so until another problem.
Today however, we've had an outage, which appears to the same thing, the lack of database access both through code and through PhpMyAdmin, brought me to look at the same thing - restart mysql ... only this time it failed. Two further attempts brought the same response. We've also had three crashed tables in the past two days, which may be adding to the trouble.
Nothing would clear the MySQL problem - the only recourse was a full reboot of the server. Because the SSH window locks up as soon as you think MySQL, its difficult to interrogate whats gone wrong. Does anyone have any ideas or suggestions? The service is running CentOS 5 and MySQL is 5.2 i think, one behind the latest version.
I'm rebooting the server as I type .... the previous reboot took the entire machine off line, as even httpd did not restart.
Any thoughts anyone???