[Mono-bugs] [Bug 472732] mod-mono spawns many process and fails to respond when using AutoRestartMode

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https://bugzilla.novell.com/show_bug.cgi?id=472732

User bassam at symform.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=472732#c17





--- Comment #17 from Bassam Tabbara <bassam at symform.com>  2009-02-11 17:42:56 MST ---
I don't believe this is an FD limit issue. I just conducted the following
experiment:

* I set the soft and hard limit the OS max of 1 million.
* I used a config file with MonoAutoRestartMode=None, MonoMaxActiveRequests=0,
MonoMaxWaitingRequest=0. 
* If I run "ab -n 1000 -c 100 http://machine/" it works fine. Note that using
your math above this should consume 100 * 3 FD total. Even if we assume 10 FD
per request the number is way less that 1M.

Now, I change config file to have MonoAutoRestartMode=Requests and set the
limit to 1000. After a 1000 requests I run the issue mentioned above (i.e. many
mod-mono-servers2 are spawned and the server returns 503s). 

With a total of 1000 requests coming in, this cannot be a FD limit issue.
Right?

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