Well the forum again went offline this evening after it had been fixed. I’ve now got our datacentre technicians looking into it. Things have been stable for months now so this is most likely down to some hardware error. I’ve gone in and repaired things three times now and the problem keeps coming back.
At the moment the mysqld service is crashing out and restarting leaving various tables locked and inaccessible requiring a repair. Sorry for any downtime folks but I’ll try to ensure that it’s sorted before the end of Sunday.