Re: mod_jk load balancing with multiple apache servers

[jerome moliere]

Peter Anning wrote:

Hi,

I am trying to implement the following configuration:

+++++++++++++++++++++++++++++++++++++++++++++++
             Cisco Load Balancer
+++++++++++++++++++++++++++++++++++++++++++++++
                       |
                       | (http)
                       |
+++++++++++++++++++++++++++++++++++++++++++++++
  Apache A                        Apache B         Apache Cluster Layer
   mod_jk                          mod_jk
+++++++++++++++++++++++++++++++++++++++++++++++
                       |
                       | (ajp13)
                       |
+++++++++++++++++++++++++++++++++++++++++++++++
TomcatI.myhost.com           TomcatII.myhost.com    JBoss Cluster Layer
+++++++++++++++++++++++++++++++++++++++++++++++
I can configure mod_jk in each of the Apache instances to
know about the two tomcat instances. So loadbalancing and
failover would work with one instance of apache.
Is there any way to have the Apache ``cluster'' layer
know about other ``members'' in the layer and the 
current servlet connection status?

Rgds
Peter
 

Hi peter,
i'm in a context near from yours
my opinion is that it isn't very logic because you introduce abstraction 
layers (like in a OO environment) & getting knowledge from
implementations (other tomcats from your second Apache server) will 
break those abstractions....
Moreover I think you could encounter network security problems with such 
things isn't it ?
my 2 pieces...
Jerome



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