hoopycat wrote:
With PHP, you shouldn't (mustn't?) use a threaded MPM
s/PHP/mod_php/ - it's perfectly good, and actually the better choice if you're using php via fastcgi (and possibly via fpm - I'm still confused about just what the latter does)
hoopycat wrote:
try using Prefork MPM and see if that improves things at all.
"prefork" and "improves" in a single sentence? WHO ARE YOU AND WHAT DID YOU DO TO HOOPYCAT?!
Also: check out your session timeouts in php.ini, and try to switch the stuff to cookie mode. I know I saw such random session losses many times, and never could quite troubleshoot it.