Date: Mon, 15 Dec 2003 12:42:03 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: freebsd-hackers@freebsd.org Subject: Re: general load balancing issues Message-ID: <20031215124203.GA19265@happy-idiot-talk.infracaninophile.co.uk> In-Reply-To: <20031215114652.GA74902@icomag.de> References: <20031215114652.GA74902@icomag.de>
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On Mon, Dec 15, 2003 at 12:46:52PM +0100, Bogdan TARU wrote:
> Right now I am considering a setup with one common NFS repository for
> the configuration files, Apache binaries, Web content and temp
> directory for PHP, NFS resource which will be mounted on all the
> 'front' webservers. I am wondering, though, if I will be able (by
> having one common temp directory for PHP) to load-balance the domains
> involving sessions: will the sessions be lost when connsecutive hits
> go to different webservers, or not?=20
The canonical answer to this is to store the session data in the
back-end database, so that it's accessible to all of your servers.
See the PHP docs for session_set_save_handler(). There's an example of
how to do this in the O'Reilly Platypus book "Web Database
Applications with PHP and MySQL", or contact me off list and I can
send you some sample code. Probably a good idea to take this off-list
anyhow, as it's not really hackers@... material.
Cheers,
Matthew
--=20
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
PGP: http://www.infracaninophile.co.uk/pgpkey Marlow
Tel: +44 1628 476614 Bucks., SL7 1TH UK
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