First: I’m truly quite a beginner with all the techniques used in my question, so please bear with my poor use of the terminology and be aware that the answer is probably a very simple one. My position at the moment is a test-developer.
We are using cookie insert as a LB technique behind a reversed proxy (Apache).
Apache -> ACE -> (Webservers)
The problem is that when running a test-script (using Silk Performer) to load-test the solution, the cookie used for cookie insert is not always set when going through the reversed proxy. In some GET the LB-cookie is set, and that virtual user keeps sending that cookie in subsequent requests. But for other users it is not set. The cookie does later get set for other users, and it also seems as ACE ignores it in most of the cases when it is set.
It seems to a novice like me that several http-gets are looked upon by ACE as one session somehow, and the reading and setting of the LB-cookies is only honourd for the firs of those GETs ignored for subsequent GETs.
If we run our tests directly against ACE it works fine! Even if we use the option to run all virtual users from the same IP! The cookie for LB is always set and is used properly.
What could possible be the problem? The guys running the reversed proxy denies to have anything to do with it since they are using only the simplest form of configuration and are just forwarding the connections.
I know I’m giving you far too few details, and the reason is of cause that I don’t know them. J But perhaps you can point me in some directions anyway?
