AW: Preferred configuration with Hardware Loadbalancer
Hello, I mean a frontend Apache httpd and backend Tomcat server. Loadbalancing would be done by a hardware load balancer fronted to the Apache Webserver, so we should not balance the request two times. It should be only a Failovercluster. Best regards Alexander -Ursprüngliche Nachricht- Von: Ronald Klop (Mailing List) [mailto:ronald-mailingl...@base.nl] Gesendet: Donnerstag, 6. Oktober 2011 10:44 An: Tomcat Users List Betreff: Re: Preferred configuration with Hardware Loadbalancer What do you mean by Apache Webserver? Do you mean Apache Tomcat or Apache httpd? And do you want Failover (active-passive) or Loadbalancing (active-active)? Ronald. Op donderdag, 6 oktober 2011 10:36 schreef Alexander Diedler adied...@tecracer.de: Hello, I am just planning a Application cluster for Tomcat. We have a big hardware loadbalancer (Cisco) and three virtual servers. We talked about several configurations, but it is not clear for us, how to build a Tomcat cluster, with Failover and Session-Replication, but without Loadbalancing? E.g. the LB redirect the request to node 1. The Apache Webserver redirects the request to node2. So we have a double load-balancing, what ne would avoid. Best regards Alexander smime.p7s Description: S/MIME cryptographic signature
Re: AW: Preferred configuration with Hardware Loadbalancer
I don't have a crystal ball to look into your setup, but I would remove httpd and set up the LB and Tomcat. Less moving parts, so it is easier to think about. And read this: http://tomcat.apache.org/tomcat-7.0-doc/cluster-howto.html Ronald. Op donderdag, 6 oktober 2011 12:43 schreef Alexander Diedler adied...@tecracer.de: Hello, I mean a frontend Apache httpd and backend Tomcat server. Loadbalancing would be done by a hardware load balancer fronted to the Apache Webserver, so we should not balance the request two times. It should be only a Failovercluster. Best regards Alexander -Ursprüngliche Nachricht- Von: Ronald Klop (Mailing List) [mailto:ronald-mailingl...@base.nl] Gesendet: Donnerstag, 6. Oktober 2011 10:44 An: Tomcat Users List Betreff: Re: Preferred configuration with Hardware Loadbalancer What do you mean by Apache Webserver? Do you mean Apache Tomcat or Apache httpd? And do you want Failover (active-passive) or Loadbalancing (active-active)? Ronald. Op donderdag, 6 oktober 2011 10:36 schreef Alexander Diedler adied...@tecracer.de: Hello, I am just planning a Application cluster for Tomcat. We have a big hardware loadbalancer (Cisco) and three virtual servers. We talked about several configurations, but it is not clear for us, how to build a Tomcat cluster, with Failover and Session-Replication, but without Loadbalancing? E.g. the LB redirect the request to node 1. The Apache Webserver redirects the request to node2. So we have a double load-balancing, what ne would avoid. Best regards Alexander
Re: AW: Preferred configuration with Hardware Loadbalancer
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Alexander, On 10/6/2011 6:43 AM, Alexander Diedler wrote: I mean a frontend Apache httpd and backend Tomcat server. Loadbalancing would be done by a hardware load balancer fronted to the Apache Webserver, so we should not balance the request two times. It should be only a Failovercluster. I agree with Ronald: drop the Apache httpd and figure out how to get your Cisco load balancer to detect failure and perform failover. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk6N+pYACgkQ9CaO5/Lv0PCqcwCfeWQqDopt2un5xYuxEQezKuz3 MJIAnA/A2IERGEk8J0yRijVm4o05ZNdV =9Ifd -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
