27. LVS: Persistent Connection (Persistence, Affinity in cisco-speak)::
"persistent connection" a term used for clients connecting to webservers and databases. For Apache this is called a "keepalive" and is set in httpd.conf and
http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.persistent_connection.htmlHOME |
Just had to edit my config.php to change where it sends those horrible 'database error' emails (overloaded server), and noticed this entry - anyone know what it does exactly, and what is best?
do a search on this forum you should find a few posts by me and others http://vbulletin.com/forum/search.php?s= ;)
and what is best?
That depend on your hosting account. If your board is on a virtual account then better you turn off persistant connections. If your board is on a dedicated server then use persistant connections.
Hmm, well it is a dedicated server - but only a RAQ3 and routinely has over 150 users on - been upped to 512MB at least, it wasn't funny before :)
Lots of 'too many connection' errors, probably about 800 a day.
Originally posted by telescopi
Hmm, well it is a dedicated server - but only a RAQ3 and routinely has over 150 users on - been upped to 512MB at least, it wasn't funny before :)
Lots of 'too many connection' errors, probably about 800 a day.
If I'm not mistaken, simply put the max_connections to a number that is GREATER THAN the number of max connections into your web server.... in Apache I have mine set to 350, and the DB to 500. I'll fine tune more later.
I never think of search - most places turn it off for the sake of CPU :)
Think I've got an idea of what it does - dunno how it will turn out on a hugely loaded server though (normally between 5 and 15 load), we're getting a new server tomorrow anyway (dual P3, 1GB RAM), so hopefully won't be a problem after that :)
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