Is it possible for Apache [2.2.12 (Ubuntu) prefork] to have a MaxClients setting of, say, 18, but have the number of processes spike to a number significantly higher? (In this case, I am seeing 30+).
I am observing this. I've stopped/started Apache (rather than a reload). I am seeing the message in the Apache error log: "[Wed Mar 31 10:38:49 2010] [error] server reached MaxClients setting, consider raising the MaxClients setting." But I'm not too troubled by that: I am assuming that the listenbacklog (default = 511) will eventually capture queued requests.