https://bugzilla.novell.com/show_bug.cgi?id=472732
User [email protected] added comment https://bugzilla.novell.com/show_bug.cgi?id=472732#c15 --- Comment #15 from Bassam Tabbara <[email protected]> 2009-02-11 10:15:58 MST --- Marek, thanks for the explanation. I'm happy for this to be a configuration issue on my part, and I would happily offer to document it on the mod-mono wiki once its setteled :-) A couple of clarifications: * We are using MPM worker * I've set the hard and soft per proccess FD limits to 32768. When I check the limits of the backend process using /proc/BACKENDPID/limits it shows 32768 on both soft and hard limits. I'm not clear about your comment of this limit being set on a group of processes. * I've set the autorestart request limit to 100 only for the repro. It was set to 10,000 on our servers. * The repro is most basic ASP.NET app with a single default.aspx page. Shutdown of this application should be pretty fast. If I understand your explanation, you are proposing that I size up the request limits, etc. to *avoid* this issue. It seems that there is a window here where apache/mod-mono could start a large number of processes and consume a large number of FD. This window happens when backend are shutdown and restarted and is a result of the synchornous operations that are performed. Is this correct? My issues is that I'm unomfortable running without any limits (time or request) based, and I've yet been able to find the right configuration to avoid this issue when a limits is reached. I've observed that by setting the request limit to 10,000 (and having the FD descriptor limit set to a high number) this prolongs the lock-up issue but it still happens. The cronjob approach might be the most robust approach at this point. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug. _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
