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i think the easiest answer is what jserv CAN and CANT do ;)
jserv can be load balanced.... at the jserv.conf level (by putting in
routes to other jserv instances and "balancing" a zone)..you can place
multiple jservs on one machines or across many.. or any mixture of the
two...
apache can also be load balanced by using a load balancing hardware
solution or software...
but you are correct.... jserv does not replicate the session values
among jservs .. this was not implemented for speed purposes...
hope that helps..
we basically work around this by allowing people to "open their old
session" if they lose it by getting their information out of the central
db...
-ed
----- Original Message -----
From: Ben Ricker <[EMAIL PROTECTED]>
Date: Wednesday, May 31, 2000 5:57 pm
Subject: Is Jserv clusteraible?
> ----------------------------------------------------------------
> BEFORE YOU POST, search the faq at <"
> target="l">http://java.apache.org/faq/>WHEN YOU POST, include all
> relevant version numbers, log files,
> and configuration files. Don't make us guess your problem!!!
> ----------------------------------------------------------------
>
> We are utilizing Jserv with one server which runs both Apache, Jserv,
> and the JVM. In time, we want to make this whole setup scalable using
> load balancing through a router. However, we are worried that session
> information would be lost. Say we have machines A, B, and C. User Fred
> makes a request for a servlet and the router finds that A is open
> so A
> get the business. Fred then hits a link on the returned HTML page and
> the router send this to machine B, not A. Will the session information
> be available? My first inclination is that it will not. Does Jserv
> havea way to utilize load balancing while keeping the session
> information?Should we let Jserv do the balancing? or should we
> load balance by IP,
> that is, IP 12.1 through 12.254 load balance on A, 13.1 through 13.254
> on B, etc.?
>
> Or does this make no sense whatsoever?
>
> Ben Ricker
> Web Administrator
> US-Rx, Inc.
>
>
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