Re: Applications, Subnets and Multicasting Question

 Chad, I bet you don't see the same error is because your
Apache server has an address on both subnets. Thanks for
the help.


On Fri, 2005-07-08 at 17:08 -0600, Chad Leigh wrote:
> On Jul 7, 2005, at 1:46 PM, Ken Hammer wrote:
> 
> > Hi,
> >  I know there was much discussions about this in the archives,
> > but I believe this is a slightly different issue with the subnet
> > and multicasting.
> >  I have 2 application servers running the same application on
> > different subnets. This is WebObjects version 5.2.3 on Solaris
> > 2.8. The web server (Apache 1.3.31) is on a different machine but on
> > the same subnet as on of the application servers. So the setup is
> > like this:
> > App server: app1.net1.x.x.x
> > App server: app2:net2.x.x.x
> > WebServer:  web1.net1.x.x.x
> >
> > The WebObjectsConfig parameter looks like this:
> > WebObjectsConfig http://app1.net1.x.x.x:1085,http://app2.net2.x.x.x: 
> > 1085
> > 60
> >
> > We had users experience intermittent "Application Not Found"  
> > errors. One
> > minute they'd be working, next they'd get the error.
> > It was corrected by making a second machine app3.net1.x.x.x and  
> > removing
> > the reference to app2.net2.x.x.x in the WebObjectsConfig parameter.
> >
> 
> I am not sure if what we do is the same but we have the same app  
> running on two different HW servers, who are on different subnets,  
> with apache being in the same net as one of the app servers.  This is  
> with 5.2.x (various values of x and 5.1), on FreeBSD and Linux.   
> However, the apache HW server has addresses in both of the subnets so  
> that might be why we have no problems.
> 
> Our WebObjectsConfig line looks similar to yours for our various  
> apaches.
> 
> Most of our WO servers are on private 192.168 nets but we also run  
> some (small number) of instances on the apache machine for redundancy
> 
> Chad
> shire.net
> 
> > _______________________________________________
> > WebObjects-admin mailing list
> > [email protected]
> > http://www.omnigroup.com/mailman/listinfo/webobjects-admin
> >
> 
> 
> 
-- 
Ken Hammer
Web Applications & Technologies Services
University of Michigan