F5 APM - iRule Question
Hello. I have a question on how to create a iRule that would look at a URI header and baste on that URI header will either forward to a pool or ELSE go the APM policy iRULE question URI header /gateway/register/acceptinvitation?invitationtoken ELSE go to APM policy What the goal here is that we want to send a link to a new users that can register and they connect straight to the registration website. Once they create their login, general traffic would be hit with a APM login page. Thoughts? RGW
iRule killing BIG-IP
Hi, I have huge issue with iRule obviously killing BIG-IP 2000. In tests iRule logic works OK, but under load BIG-IP is overloaded. Scenario: BIG-IP no iRule, 30 to 40k concurrent connections - CPU usage 40-50% Same number of concurrent connections with iRule attached to VS - CPU usage skyrocketing to almost 100% I am looking for directions what to check first. iRule is quite complicated and not optimized for sure - lack of knowledge and time on my side. Still it looks for me as not so much complicated - so I am puzzled. What to look for first and how? It's HTTP intensive iRule in first place - most of the logic in HTTP_REQUEST event. I wonder what load could be caused by inactive debug statements like: if {0} (log local0. "something"} - of course 0 is some global static variable like $static::debug I have something around 40 of those Then I have nested if - around 8, mostly using HTTP::cookie value $cookie name in if and subtable lookups. Then of course some set/add keys to subtables - one main with around 5000 keys, other just single key in main table. One switch without -global and five conditions resulting in HTTP::response - either 403 or 302 with Location and Set-Cookie So what is first candidate for closer investigation? Should I use timing on (seems that above 11.5.0 it's enabled by default so no need to set in iRule?) Any advises/ideas will be appreciated a lot, I am running out of options here :-( Piotr