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From "Filip Hanik - Dev" <devli...@hanik.com>
Subject Re: Clustering / Load Balancer / Session Cookie
Date Thu, 29 Apr 2004 15:02:10 GMT
yeah pen is awesome! You'll like it

Filip

----- Original Message -----
From: "Dale, Matt" <Matt.Dale@beCogent.com>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Sent: Thursday, April 29, 2004 9:59 AM
Subject: RE: Clustering / Load Balancer / Session Cookie



Ah thanks, i'll give pen a shot I think. I was going to ask about using JK2 on the balancer
machine to redirect the requests as  the
url would appear the same then too. But the balancers you posted look like better options.

Thanks
Matt

-----Original Message-----
From: Filip Hanik - Dev [mailto:devlists@hanik.com]
Sent: 29 April 2004 15:47
To: Tomcat Users List
Subject: Re: Clustering / Load Balancer / Session Cookie


http://siag.nu/pen
http://balance.sourceforge.net

pen is my favorite, performs best and works on both windows and unix

Filip
----- Original Message -----
From: "Dale, Matt" <Matt.Dale@beCogent.com>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Sent: Thursday, April 29, 2004 8:51 AM
Subject: RE: Clustering / Load Balancer / Session Cookie


Thanks for the quick reply.

So the supplied tomcat load balancer isnt of any use for stateful sessions where the cluster
is spread accross several machines?

-----Original Message-----
From: Peter Lin [mailto:tcw00lfel@yahoo.com]
Sent: 29 April 2004 14:44
To: Tomcat Users List
Subject: Re: Clustering / Load Balancer / Session Cookie



to paraphrase, you want to have it look like the same machine to the browser (ie user).

the easiest way is to use a hardware load balancer. I've use this approach a couple times
in the past and it works well.

peter lin



"Dale, Matt" <Matt.Dale@beCogent.com> wrote:

Hi,

I'm currently testing a setup up on 3 machines.

2 have tomcat 5.0.19, these 2 are clustered with session replication and have a simple test
app.

The other, also 5.0.19, runs the supplied balancer app.

I've written a simple round robin rule which passes the requests back and forth as it should,
I can see the sessions being
replicated fine in the logs so all is ok there.

BUT my problem is accessing the same session on both machines. Basically I'm stumped, I know
its not accessing the same session
because the redirected URL is different but how can I get around this?

I've tried a using an HTML frame on the balancer machine but that was clutching at straws
and obviously didnt work.

Any ideas would be appreciated.

Ta
Matt

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