F5 sticky sessions - no need for Terracotta?

Nate Klingenstein ndk at internet2.edu
Mon Aug 1 07:52:06 BST 2011


Tim,

This depends what you want to support.  If you want to support at  
least attribute queries -- required for backward compatibility with  
many older SP's and some advanced profiles -- then you'll need to at  
least do stateless clustering.  That's because the attribute query  
will come from a different host and the load balancer can't associate  
it with the original session/node.

https://wiki.shibboleth.net/confluence/display/SHIB2/IdPStatelessClustering

There are other feature limitations introduced by the use of stateless  
clustering as well.  You can read the article for a great summary.  If  
those limitations are significant for you, then you should perform  
real session replication, using either Terracotta or the new memcached  
work.

Hope this helps,
Nate.

On Aug 1, 2011, at 5:46 , Tim O'Connor wrote:

> Again on the F5 - If we are using sticky sessions on the F5, do we  
> need Terracotta?
>
> --
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