F5 Load Balancing with SAP PI

Hi Jason, this is a great question. I hope others will also jump in and try to assist, but I'll do my best in the meantime :-)

 

 

First off, I'm wondering if you've applied note: 951910 to the PI instance in support of the load balanced setup. Because you were running WebDispatcher, you probably have applied this note, but I just want to make sure you have. It might also not be relevant in your particular setup, but it's a minor configuration change to support load balancing.

 

 

It would be really helpful to get an HTTPWatch trace from the browser to see what could be happening during the login and whether your hypothesis is true. Because an HTTPWatch trace may contain sensitive and private data relating to your organization, I'm not positive what the best way to proceed is, but , let me know about the note first, and then we can go from there. I'm not positive that the browser is trying to call port 5$$04, but if it is, we can help you with an iRULE or other configuration setup (perhaps another virtual server on the BIG-IP LTM) that can answer calls for 5$$04 as well.

 

 

Also, as one final question for you, in setting up the PI load balancing on the BIG-IP, how many instances of PI do you have across how many servers and are you applying any sort of persistence profile (cookie or source ip , etc)?