You have 4 Web servers with the four of them running wotaskd or they are front-ends to other servers running wotaskd and the apps?

Sessions are not bound to your webserver. We use a load balancer against 4 apache servers. You'll love it when you can do a software update and reboot without worrying about users -- during normal business hours.

We got ours off eBay for fraction of list cost.

-G

On Aug 24, 2009, at 4:31 AM, Aristedes Maniatis <a...@ish.com.au> wrote:

On 24/08/09 9:26 PM, Anjo Krank wrote:
If you only want to distribute web server load (as opposed to
failover/failsafe) you can simply use DNS:

www.foo.com A 127.0.0.1
www.foo.com A 127.0.0.2
www.foo.com A 127.0.0.3

No, I definitely want to *increase* reliability/failover rather than spread load around in this way (which will probably also kill any SSL connections). So my question is a specific one... do sessions need to be bound to a particular Apache httpd front end for the life of the session?

After this we need to address reliability of the mysql backend (we currently run master-slave, but master-master and some sort of failover in the jdbc connection will be needed). But one step at a time...

Ari Maniatis



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