Re: [APC-DEV] APC + Apache SIGHUP

On Fri, Oct 9, 2009 at 03:27, Nathan Clemons <nathan@livemocha.com> wrote: > On Thu, Oct 8, 2009 at 3:07 AM, Gopal V <gopalv@php.net> wrote: >> So basically the apc module init is called again in the parent >> process after it gets a SIGHUP. It's not that apc is clearing >> its cache or handling the HUP, apache is essentially doing an >> internal soft restart. >> >> http://httpd.apache.org/docs/2.2/stopping.html#hup >> > > Thanks, I didn't actually realize that it restarted APC/PHP on a > SIGHUP. Are you familiar with whether or not this occurs during a > SIGUSR1? The Apache documentation is unclear about module reloading. > From my testing, it seems like it does, but I'm not completely sure > about that. According to Rich Bowen (from the Apache doc team) then SIGUSR1 is a graceful-restart and Apache will *not* reload the modules. Note though: Some Linux distros add an 'reload' alias, which sometimes is graceful and othertimes a restart.. so don't use that :) According to his quick testing Linux is the only OS which does *not* reload the modules.. so if you are running BSD/OSX or heaven forbid something crazy like windows or novell... -Hannes