With the configuration below and your explanations, I suppose that there is some kind of
load-balancing going on between the two machines.
What is used at the front-end to load-balance ?
An idea (for the moment vague) would be to use some intelligent front-end, which would
decide (maybe as Mark wrote, in function of the client IP address) to start chanelling one
client to either machine 1 or machine 2 - and within it to Tomcat A,B,C or D - , set a
cookie, and use this cookie later to keep sending the same client to the same back-end
machine.
Kind of a session on top of a session..
There is also the question of why App1-4 have to be split between different
Tomcats.
Why can you not run all apps within one single JVM/Tomcat ?
Andrew Hole wrote:
There is a middleware-to-middleware connection between Tomcat A and Tomcat B
using RMI (point-to-point protocol) and Tomcat A has in-memory data useful
to App3.
The same aproach in the second server: applications in tomcat d have RMI
communication to tomcat c.
thanks
On Mon, Nov 22, 2010 at 11:58 PM, André Warnier <a...@ice-sa.com> wrote:
Andrew Hole wrote:
Sorry for the inconvenience. I sent the email with wrong content.
An example:
Machine 1:
Tomcat A
App1
App2
Tomcat B
App3
App4
Machine 2:
Tomcat C
App1
App2
Tomcat D
App3
App4
Using session affinity, if I make a request to App1 and the Tomcat A in
Machine 1 is selected. All the sequent requests will be redirected (within
the same session) to the same Tomcat (tomcat A). However, if i make a
request to App3, Tomcat B (machine 1) or Tomcat D (machine 2) could be
selected. What I really want is that the request to App3 could be done to
Tomcat B in machine 1 (the request was done using the same browser
client).
Ok, now I get it.
My next question is : why ?
Why is it important that, having started on Tomcat A with App1, the same
client would get App3 on Tomcat B, rather than on Tomcat D ?
What do Tomcat A and Tomcat B have in common, that Tomcat C and D don't ?
And vice-versa.
And , should your scheme still work if in the future, Tomcat A and Tomcat B
were split onto two separate machines ?
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org
