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Forum Discussion

Steve_07_136055's avatar
Steve_07_136055
Icon for Nimbostratus rankNimbostratus
Apr 25, 2014

Load Balanced services consuming other load balanced services

Hi,   Beginner here so trying to understand the required setup. I am putting together the following but I've come across another forum that stated this could be problematic so I wanted to get the ...
application delivery
deployment
LTM
Kevin_Stewart's avatar
Kevin_Stewart
Icon for Employee rankEmployee
Apr 26, 2014

At a minimum, because the two servers are on the same network segment, you'd necessarily want to use a SNAT. You could create a separate VIP on the app VLAN that the servers use to load balance amongst themselves. Two questions then come to mind:

 

  1. Do you need any kind of persistence across these services? For example, if the client is load balanced to server A, does server A have to persist to itself across the inner VIP? Or is basic load balancing okay?

     

  2. Are the two services running on the tomcat server completely independent of one another? Such that if the web server dies the web service may still be usable? Or would it be reasonable to a) take the server out of rotation if either service failed, and b) simply have the tomcat server talk to itself for web service requests, without going through a VIP.