[Deploying Sakai] Load balancing and sticky sessions
john.grossman at mdanderson.org
Tue Apr 13 09:37:45 PDT 2010
Slightly unrelated - We have had some issues using Cisco CSS and SSL sticky
sessions. The CSS load balancer occasionally seems to lose track of the SSL
session and directs requests from an existing Sakai session to the wrong
server, causing the user to have to re-authenticate. Not sure if it is a CSS
configuration issue, a CSS bug or something else.
On 4/13/10 7:16 AM, "Jean-Francois Leveque" <jean-francois.leveque at upmc.fr>
> Hi all,
> The current UPMC load balancing is done by IP-based sticky sessions.
> This is inefficient with users going through proxies and requests done
> by the main portal on behalf of users.
> Our load-balancer admin offered to do the load-balancing based on a
> parameter in the URL sur as:
> http://<sakai instance domain name>/...?server=<serverId>
> Can this be done and if it can, how do I do this ?
> Please note that each Tomcat server is behind its own apache HTTPD
> server and accessed through mod_proxy.
> Jean-Francois Leveque
> Sakai CTO @ UPMC
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