I have two questions about mod_webapp and/or mod_jk.
But first a little background:
Most of you know that I'm working on a
distributed session management solution the
purpose for which is to provide fail-over capability
in the context of a load balanced environment.
By fail-over, I mean
Hi, I have been working on load balancing Apache/Tomcat clusters.
In mod_jk, the fail-over is done in the function
get_most_suitable_worker. Basically if the worker who initiated the
session is available (i.e. not in error state), use it, otherwise loop
through the workers and select either the
Hi Mathias,
Maybe you could contribute some docs, you seem very familiar with the
subject ! Code would be even better :-)
In jk2 it should be possible for 'callbacks' to change anything, and all
the information about lb is exposed in accessible structures ( private
data has been greatly reduced
Tom Drake wrote:
Mathias;
Thanks for your very informative reply. From your reply, it seems
that mod_jk comes close to doing what I want, and should actually
provide the fail-over I'm looking for, however not in the most
optimal way.
What would be involved in adding (optionally
[EMAIL PROTECTED]
Sent: Tuesday, December 18, 2001 12:23 PM
Subject: Re: Load balancing - fail-over support with mod_webapp
| Tom Drake wrote:
|
| Mathias;
|
| Thanks for your very informative reply. From your reply, it seems
| that mod_jk comes close to doing what I want, and should actually
On Tue, 18 Dec 2001, Tom Drake wrote:
Date: Tue, 18 Dec 2001 13:25:07 -0800
From: Tom Drake [EMAIL PROTECTED]
Reply-To: Tomcat Developers List [EMAIL PROTECTED],
Tom Drake [EMAIL PROTECTED]
To: Tomcat Developers List [EMAIL PROTECTED]
Subject: Re: Load balancing - fail-over support
On Tue, 18 Dec 2001, Craig R. McClanahan wrote:
The load balancer routing from JK hasn't ever been implemented in
Catalina yet. Patches welcome :-).
Can we get a 'setRequest' method on Manager ? I'm trying to find
workarounds, but that would be the simple solution.
Again, adding support for
PM
Subject: Re: Load balancing - fail-over support with mod_webapp
| On Tue, 18 Dec 2001, Craig R. McClanahan wrote:
|
| The load balancer routing from JK hasn't ever been implemented in
| Catalina yet. Patches welcome :-).
|
| Can we get a 'setRequest' method on Manager ? I'm trying to find
On Tue, 18 Dec 2001 [EMAIL PROTECTED] wrote:
Date: Tue, 18 Dec 2001 14:14:10 -0800 (PST)
From: [EMAIL PROTECTED]
Reply-To: Tomcat Developers List [EMAIL PROTECTED]
To: Tomcat Developers List [EMAIL PROTECTED]
Subject: Re: Load balancing - fail-over support with mod_webapp
On Tue, 18 Dec
Another solution would be to calculate some sort
of checksum on each session id received for a vm that is
no longer on the air. Then modulo that number by the number of
available tc instances in the cluster, and route the request to the
the jth server in the cluster (where j is the
PROTECTED]
Sent: Tuesday, December 18, 2001 6:09 PM
Subject: Re: Load balancing - fail-over support with mod_webapp
On Tue, 18 Dec 2001 [EMAIL PROTECTED] wrote:
Date: Tue, 18 Dec 2001 14:14:10 -0800 (PST)
From: [EMAIL PROTECTED]
Reply-To: Tomcat Developers List [EMAIL PROTECTED
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