Overload
At about 22:00, I couldn’t get to the webmail agent – got a “503” error. Checked the server and found about 20 helper processes, many of them running PHPWASD (so accessing PHP code) and in LEF state. But the administration pages of WASD showed just one or two.
I tried restarting the server but that didn’t help.
I tried STOP/ID for each of them, no error but the processes didn’t go away.
The only way to get around it was to restart the machine. Next, I changed the throttle, it allowed for 20 processes and even more. So I lowered the number of processes for all blogs.
That should help.