Not one to leave myself hanging :), I thought I'd update the group before I switch venues... I've narrowed this problem to SSL requests only, and httpd is hanging during the request read. I use a PerlPostReadRequestHandler (which has been helpful in scoping the problem via a USR2 signal trap), but it turns out httpd isn't even getting that far... the httpd child hangs somewhere before the scorecard changes from "..reading.." status. Could be a locking/semaphore issue... My next debug attempt (I'm waiting for the problem to recur) will be using gdb to get some backtraces and then head over to http-dev and/or mod_ssl lists. Any last-ditch advice from MP folks would be welcome, but not expected since this doesn't appear to be a MP/Perl issue (although it could be libapreq since I believe mod_ssl uses that.)
thanks Jeff On 9/8/05, Jeff Ambrosino <[EMAIL PROTECTED]> wrote: > Sorry, I should have mentioned that I'm using a reverse mod_proxy, so > the "hanging" is most likely during the http response from the > back-end web server. I realize this may not be a MP2 problem, but > figured I'd at least start here on the mod_perl list since my entire > app is an http output filter that processes the proxied response (and > unfortunately the mod_proxy list is basically dead). > > thanks > JB > > > On 9/8/05, Jeff Ambrosino <[EMAIL PROTECTED]> wrote: > > Hi mod_perl folks, > > > > I'm getting occasional hanging httpd children (prefork) that suck up > > alot of CPU and > > bog down my server. When I inspect Apache Status (ExtendedStatus On), I see > > something like this: > > > > 434-3 11031 0/29/612 R 0.49 1341 0 0.0 0.20 4.09 ? ? ..reading.. > ................. > > FYI I'm using httpd-2.0.54, mp2.0.0-RC4, libapreq2-2.04_03-dev. > > > > thanks, > > JB > > >
