{"id":101,"date":"2006-12-20T10:49:00","date_gmt":"2006-12-20T14:49:00","guid":{"rendered":"http:\/\/onlineappsdba.com\/?p=101"},"modified":"2008-06-25T15:48:07","modified_gmt":"2008-06-25T19:48:07","slug":"oracle-apps-load-balancer-setup-for-http-server","status":"publish","type":"post","link":"https:\/\/onlineappsdba.com\/index.php\/2006\/12\/20\/oracle-apps-load-balancer-setup-for-http-server\/","title":{"rendered":"Oracle Apps Load Balancer Setup for HTTP Server"},"content":{"rendered":"

<\/a><\/p>\n

I am going to cover most common load balancer<\/span> setup in Oracle Apps 11i i.e. Setup Two or more Middle tier with Web Server & Form Server with Hardware Load balancer<\/span> in front of middle tier . This type of setup is also called as “HTTP Layer Hardware Load balancing<\/strong>” in Oracle Applications.<\/p>\n

Below are steps you need to follow to configure Multiple Middle Tier (Web & Forms Server ) with Hardware Load balancer<\/span> in front.<\/p>\n

1. Setup a Load balancer<\/span> such that it forwards requests to first middle tier only.<\/p>\n

2. Make sure sticky bit is set on load balancer<\/span> for session persistence (Check Load balancer<\/span> documentation), You can Network level switch as well to send requests to multiple middle tier<\/p>\n

3. Apply Prereq.<\/span> patches (3175852, 3077386, 3209878)<\/p>\n

4. Edit following entry in XML or Context File directly ($APPL<\/span>_TOP\/admin\/$CONTEXT_NAME.xml<\/span><\/span>) or via Oracle<\/span> Application Manager<\/p>\n

— 4.1 “Web entry point Host” to the HTTP load-balancer<\/span> machine name<\/p>\n

— 4.2 “Web entry point Domain” to the HTTP load-balancer<\/span> domain name<\/p>\n

— 4.3 “Web entry protocol” to the HTTP load-balancer<\/span> protocol e.g. “http” or “https”<\/p>\n

— 4.4 “Active Web Port” to the value of the HTTP load-balancer’s<\/span> external port<\/p>\n

— 4.5 “Login<\/span> Page” to include “Web entry protocol”:\/\/”Web Host entry point”.”Web domain entry point”:”Active Web Port”<\/p>\n

— 4.6 “disco_machine” to load balancer<\/span> machine<\/p>\n

5. Run Autoconfig<\/span><\/p>\n

6. Start Services & check if you can login<\/span> to applications via Load balancer<\/span><\/p>\n

7. Now clone this middle tier to another node (where you want to add another node)<\/p>\n

8. Make sure above parameter are pointing to load balancer<\/span> in second node as well<\/p>\n

9. Change load balancer<\/span> to point to second node only<\/p>\n

10. shutdown services on first node<\/p>\n

11. try accessing application from second node (you should be able to access application without issues)<\/p>\n

11.1 — If forms are not opening properly , check “ICX<\/span> Form Launcher ..” Profile option should point to load balancer<\/span><\/p>\n

12. Now start application on both middle tier<\/p>\n

13. Point load balancer<\/span> to both middle tier<\/p>\n

14. You should be able to access applications<\/p>\n

Things to Note :<\/strong><\/p>\n

——————<\/p>\n

Above solution is for HTTP Layer load balancing & HTTP Server will forward Forms request to form server running on same node .<\/p>\n

Related Links<\/strong><\/p>\n

Metalink<\/span> Note : 217368.1 Advanced Configurations and Topologies for Enterprise Deployments of E-Business Suite 11i<\/p>\n

http:\/\/teachMeOracle.com\/forum<\/p>\n","protected":false},"excerpt":{"rendered":"

I am going to cover most common load balancer setup in Oracle Apps 11i i.e. Setup Two or more Middle 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