On Wed, 2008-09-10 at 12:21 -0400, Albert wrote: > We encountered a problem earlier today where pound had too many open > files. This had never happened before (in 3 years of running pound), > and happened right after we lost one of our web servers unexpectedly. > We have a HAPort setup for all of our backends (port other than 80), and > its checked every 15 sec. At the time when pound started complaining > about too many open files, it hadn't removed the dead backend from > available list. > > I believe I have tracked the problem to the fact that "shutdown" is not > being called prior to "close(socket)" on line 774 of http.c V2.4.2. > Looking at the rest of the code, every time a socket is about to be > closed, shutdown is called. I don't know if this is the problem we > encountered with too many file handles being opened, but I was wondering > if shutdown() needs to be called before close(). Here's the snippet of > pound errors when this occurred: > > Sep 10 09:45:36 p2 pound: (b4429ba0) backend 192.168.111.23:80 connect: > Connection timed out > Sep 10 09:45:37 p2 pound: (b3b05ba0) connect_nb: error after getsockopt: > Connection timed out > Sep 10 09:45:37 p2 pound: (b3b05ba0) backend 192.168.111.23:80 connect: > Connection timed out > Sep 10 09:45:37 p2 pound: (b487aba0) connect_nb: error after getsockopt: > Connection timed out > Sep 10 09:45:37 p2 pound: (b487aba0) backend 192.168.111.23:80 connect: > Connection timed out > Sep 10 09:45:38 p2 pound: HTTP accept: Too many open files > Sep 10 09:45:38 p2 pound: (b52e3ba0) connect_nb: error after getsockopt: > Connection timed out > Sep 10 09:45:38 p2 pound: (b52e3ba0) backend 192.168.111.23:80 connect: > Connection timed out > Sep 10 09:45:34 p2 pound: (b4e51ba0) connect_nb: error after getsockopt: > Connection timed out > Sep 10 09:45:34 p2 pound: (b4e51ba0) backend 192.168.111.23:80 connect: > Connection timed out > Sep 10 09:45:34 p2 pound: (b697cba0) connect_nb: error after getsockopt: > Connection timed out > Sep 10 09:45:34 p2 pound: (b697cba0) backend 192.168.111.23:80 connect: > Connection timed out > Sep 10 09:45:35 p2 pound: (b509aba0) connect_nb: error after getsockopt: > Connection timed out > Sep 10 09:45:35 p2 pound: (b509aba0) backend 192.168.111.23:80 connect: > Connection timed out > Sep 10 09:45:35 p2 pound: (b70d9ba0) connect_nb: error after getsockopt: > Connection timed out > Sep 10 09:45:35 p2 pound: (b70d9ba0) backend 192.168.111.23:80 connect: > Connection timed out
I am quite sure that adding a shutdown() would not hurt. However, having too many open files is not likely to be related to this, but rather to the total allowed number of open files. -- Robert Segall Apsis GmbH Postfach, Uetikon am See, CH-8707 Tel: +41-44-920 4904 -- To unsubscribe send an email with subject unsubscribe to [EMAIL PROTECTED] Please contact [EMAIL PROTECTED] for questions.
