I'd suggest investigating Apache2.2 and mod_proxy + mod_proxy_ajp + mod_proxy_balancer.
Madhur K Tanwani wrote: > Thanks Filip. > I understand now that Tomcat performs redirection - which implies that the > URL must change. > Then, I suppose I must ask > - Is something like mod_proxy available in Tomcat? > - Is it possible to emulate the same behavior in Tomcat? > > After my discussion on the Tomcat 5.5 load balancing thread and this > one, I'm > thinking of a setup like > <request> > | > V > Apache 2.0 httpd Webserver > (LB with sticky sessions, weighted round robin, mod_jk2) > | > |--------> Tomcat Worker 1 (ajp13) > |--------> Tomcat Worker 2 (ajp13) > |--------> Tomcat Worker 3 (ajp13) > > The session management will be done using either JDBCStore or in-memory > replication amongst the Tomcat servers. > > Can you suggest something in the design that is wither wrong or can be > improved? > Is there something that the LB gurus find obviously wrong here and would > want to > tell me (or would you want me to encounter it as it comes :) )? > > Awaiting your valuable comments, > Madhur. > > Filip Hanik - Dev Lists wrote: >> redirection, as the name tells you, doesn't balance, it redirects, and >> there is nothing transparent about a redirection. >> what you are looking for is called proxying, and the best example for >> that, would be mod_proxy in the Apache httpd web server. >> >> >> Filip >> >> Madhur K Tanwani wrote: >>> Hi, >>> I'm separating this question from my earlier thread on load balancing >>> rules - it >>> seems that it was over-looked there since it did not fit in there :(. >>> >>> My question is that when I use the default balancer webapp from >>> Tomcat 5.5 the >>> redirection rules redirect me to either jakarta, cnn or yahoo's site. >>> However, >>> the redirection is not transparent to the user. >>> >>> for example, >>> Client Types : http://servername:8080/balancer/ >>> Balancer Redirects To: http://jakarta.apache.org >>> *The browser URL changes to : http://jakarta.apache.org* >>> >>> I think this change of URL does not make the transition transparent. >>> Also, the >>> subsequent requests bypass the load balancer(LB) and are directly >>> served by the >>> server (so what happens if the server is down - the LB has support >>> for fail over >>> but the request never went via the LB) >>> >>> Please could someone throw some light on the same? >>> Awaiting responses, >>> >> >> >> --------------------------------------------------------------------- >> To start a new topic, e-mail: users@tomcat.apache.org >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > > --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
