Thanks for the reply, Do you mean to say that not
Tomcat but load balancer will do the replication job?
So user and roles will be still available in another
server. 

regards
manisha

--- "Farrow, Marc" <[EMAIL PROTECTED]> wrote:

> Depending on the load balancer, most sessions are
> replicated across the load
> balancer.  *shrug*
> 
> -----Original Message-----
> From: Manisha Sathe
> [mailto:[EMAIL PROTECTED]
> Sent: Monday, April 10, 2006 11:05 AM
> To: Tomcat Users List
> Subject: Tomcat 5.0 Datasource Realm and
> Cluster/load balance web servers
> 
> I am using form based Datasource Realm for
> authentication and authorization. Also need to
> consider clustering/loadbalancing of web server (in
> this case Tomcat). In docs it is written for Realm
> as
> follows
> 
> "Once a user has been authenticated, the user (and
> his
> or her associated roles) are cached within Tomcat
> for
> the duration of the user's login. ....
> The cached user is not saved and restored across
> sessions serialisations."
> 
> I am worried about last line - whether it means that
> it does not support loadbalance techniques ? So if
> next request from user (who is logged in previously)
> goes to another server, then user needs to login
> again? What is the solution for this?
> 
> Thanks in advance,
> 
> regards
> Manisha
> 
> 
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