Load Balancing Portal that uses JPDK portlets

Question

We are having the following Portal architecture :
-Browser
-Firewall
-Load Balancers
-Multiple 9iAS middle-tiers (2)
-DB Server
We are using Web Providers registered with Portal which calls JPDK portlets.
We have registered the Web Provider url's, but of course had to
enter a URL to point to the location of the provider.xml. If we enter the URL specifying a particular 9iAS middle-tier hostname, all requests for the provider from any of the middle-tiers are routed through the one 9iAS server, which places a heavy load on this server.
Requirement : We want to specify the location of the provider.xml as local to the particular 9iAS server and so call the portlet from the same server, which will spread the load.
What would be the best way to achieve this ?

Answer 1

Hi,
You can very well provide the URL of 'Load balancer' while registering the WebProvider, provided it meets the following condition :
Condition : For example, your middle-tiers are named 'machineA' & 'machineB'. Your loadbalancer's name being 'loadbalancer'. Say, a user wants to access a file by name 'test.html' which exists in both machineA & machineB and is identical. Let http://machineA/test.html & http://machineB/test.html be the URLS for accessing it.
The user should get the output after specifying the loadbalancer's name in the place of the 'serverA' or serverB.
Something like, http://loadbalancer/test.html
If the condition is satisified, you can register the webprovider with Loadbalancer's URL.
--Sriram