Re: [PLUG] Strange Apache behavior

Eric,

We're running 2.2.x, but will see this behavior every now and then. We have dynamic websites (running in a tomcat container) and when that hangs, the front-end apache process runs out of available client connections (as users continue to hit our site). Clients eventually time-out and their browser looks like it's hanging (when it's really just waiting on httpd).

Does your friend serve-up any dynamic content or run scripts that may hang and eat-up available client connections?

Does he have the status mod enabled? (http://httpd.apache.org/docs/2.0/mod/mod_status.html)

His httpd.conf (and any conf files in conf.d) would be helpful.

Jonathan

From: Eric <eric@lucii.org>
To: Philadelphia Linux User's Group Discussion List <plug@lists.phillylinux.org>
Sent: Mon, January 18, 2010 6:12:34 PM
Subject: [PLUG] Strange Apache behavior

I have a client who has called me for assistance with a strange Apache
web server problem.

Apache has run fine for six or more months but in the last two weeks has
started to fail once or twice a day. The failure mode is odd... the
server runs normally, logging accesses and errors like everything was
fine but it appears that no pages are actually leaving the server and
going to the client - the client browsers time out.

Simply restarting Apache restores it to normal operation.

Has anyone seen anything like this?
Where do I look for evidence of what's happening?
The Apache logs as well as /var/log/messages, and /var/log/syslog don't
show any glaring problems.

System:
VPS with 1 GB RAM
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=6.06
DISTRIB_CODENAME=dapper
DISTRIB_DESCRIPTION="Ubuntu 6.06.2 LTS"

apache2ctl -v reports:
Server version: Apache/2.0.55
Server built: Nov 12 2009 23:17:17

It's a "reasonably" busy site but nothing extraordinary.
He's run apt-get update and apt-get upgrade so it's current.

Any suggestions are appreciated as he's stumped so he turned to me and
I'm stumped too!

Eric

--
# Eric Lucas
#
# "Oh, I have slipped the surly bond of earth
# And danced the skies on laughter-silvered wings...
# -- John Gillespie Magee Jr

___________________________________________________________________________
Philadelphia Linux Users Group -- http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug