You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@tomcat.apache.org by Alexander Diedler <ad...@tecracer.de> on 2011/10/06 10:36:03 UTC
Preferred configuration with Hardware Loadbalancer
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
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----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-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
Re: AW: Preferred configuration with Hardware Loadbalancer
Posted by "Ronald Klop (Mailing List)" <ro...@base.nl>.
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 <ad...@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-mailinglist@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
> <ad...@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
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
AW: Preferred configuration with Hardware Loadbalancer
Posted by Alexander Diedler <ad...@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-mailinglist@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
<ad...@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: Preferred configuration with Hardware Loadbalancer
Posted by "Ronald Klop (Mailing List)" <ro...@base.nl>.
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 <ad...@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
>
>
>
>
>
>
>
>
>