[Mono-list] Apache / mod_mono restarts required to avoid whitescreens

dugaldcurtis dugald at zoom.co.uk
Mon Feb 18 05:05:26 EST 2008

Hi All,
I have set up a dedicated web server which runs a website used in schools. 
It currently serves at most 10 concurrent users.  Usage is light (low
bandwidth) - and involves around 400 calls to MySql in the morning over a
half hour period and the same at lunchtime.  Server load is very low and
bandwidth is tiny.  At lunchtime users access the wepage one at a time (no
concurrent access).
However, I have to gracefully restart Apache between morning and lunch or
else (on busier days) lunchtime web pages start to just whitescreen (and
load after a minute or so).  Button presses which are supposed to action
database inserts appear to work but the inserts don't happen. With the
restart at 11.30 this never happens.  However, users get logged out and the
root of the problem isn't getting sorted.
Any ideas what the problem could be?  Is it mono or Apache?  When I restart
apache, mod_mono restarts as well?  Is there a way to restart mod_mono but
not Apache?  Testing possible solutions isn't easy - it is critical that we
capture the lunchtime info as it relates to billing.  I have been unable to
recreate the conditions myself.
Any advice would be greatly appreciated as soon more schools are to be added
to the system and I am very concerned.  Undecided
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