Hi, I've been following the Varnih development for the last few months. I'm using it as a front-end cache for a fairly large Website which runs on Zope/Plone, with a Zeo Cluster architecture of 1 Zeo Server and 3 Zeo Clients sitting behind Lighttpd acting as a load balancer, which in turn is right behind Varnish.
I'm currently implementing Varnish over a similar setup, but I began working with the 2.0 version of the software. After discovering and playing around with all the new options I upgraded the original Varnish installation. In the current setup I'm skipping Lighttpd altogether and began using Varnish as a load balancer altogether as well, with the 'directors' feature. However I'm still missing the last bit of the requested functionality that is to evenly balance all the requests from 'anonymous' users that aren't registered/logged into the system (which I am already identifying in the sub_rcvd function of my VCL), but for registered users to preserve their session by redirecting them always to the same backend server. I know I can create a 'hash' using some relatively unique values, as the originating IP address + the User Agent and a session-dependent cookie value, but what I don't know is (if possible), how to use this hash to determinate to what backend server to direct the request to. If what I'm asking is not possible to do with Varnish, any suggestions on using another tool as a load balancer behind Varnish would be greatly appreciated. Best regards, -- Carlos Oliva G. Igloo Sistemas Ltda. [email protected] - http://www.igloo.cl/ _______________________________________________ varnish-misc mailing list [email protected] http://projects.linpro.no/mailman/listinfo/varnish-misc
