Re: Limiting persistant connections with IIS

From: Date: Wed, 11 Aug 2004 17:30:01 +0000
Subject: Re: Limiting persistant connections with IIS
References: 1  Groups: php.db 
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Hi Remember that odbc supports connection pooling. Use non-persistent connections in PHP, and switch to odbc connection pooling. <srees@nildram.co.uk> wrote in message news:411A3C37.mail5AY11Y2BR@nildram.co.uk... > I'm running a PHP app on windows 2000 / IIS using unified ODBC to > connect to MS-SQL. I would like to connect to the database using > persistant connections but need to limit the total number of > connections to avoid swamping the database. It seems that a new > connection is created for every request made to the webserver at > least for the first few tens of requests - presumably a new php > thread is being created for each request. > > I've tried limiting the maximum connections allowed by IIS for > the website - but this does not appear to affect the number of PHP > threads holding persistant connections to the db. > I have set odbc.max_links in the php.ini file in case it is a bug > in my program opening lots of connections but with maximum connections > for IIS being set to 20 and max_links 4 I still end up with several > hundred database connections after a few hundred page requests. > > If I was implementing this on apache (which I have much more experience > of using) I would use the MaxClients directive to achieve this... > > Does anyone know how to limit the number of persistant database > connections on windows/IIS/PHP? > > cheer Simon > > > -- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Simon Rees | srees@nildram.co.uk | > ORA-03113: end-of-file on communication channel > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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