[HTTP::uri] requires FASTHTTP profile?

Hi guys,

 

 

I'm having trouble extending an existing iRule on a Loadbalancer running BIG-IP 9.1.0 Build 6.2

 

I have a virtual server using a slightly (only fallback host) modified http-profile.

 

The VS already has a rule bound to it that looks like this:

 

 

when HTTP_REQUEST {
if { [HTTP::uri] starts_with "/maintenance/" } {
pool maintenance_pool
}
elseif { [HTTP::uri] starts_with "/tracking_engine/" } {
pool tracking
}
else { 
pool http_defaultpool
}
}

 

 

This one works properly. But since the fallback functions using profiles are too limited, I wanted to append the following to the rule:

 

 

when LB_FAILED {
   if [regexp {&view=([a-zA-Z]+)} [HTTP::uri] viewstring portalview] {
      HTTP::redirect https://some.webserver.com/maintenance/$portalview
   }
   elseif [regexp {/irj/portal/([a-zA-Z]+)} [HTTP::uri] uri_part portalview] {
      HTTP::redirect https://some.webserver.com/maintenance/$portalview
   }
   elseif { {[HTTP::uri] not starts_with "/maintenance"} and {[HTTP::uri] not starts_with "/tracking_engine"} } {
      set portalview [getfield $uri "/" 2]
      HTTP::redirect https://some.webserver.com/maintenance/$portalview
   }
}

 

 

There are three types of possible URIs that contain the customer ID:

 

1. the string &view=customer

 

2. /irj/portal/customer?target=xyz

 

3. /customer as starting page

 

 

Adding this to the rule, the loadbalancer complains about a missing FASTHTTP profile:

 

 

01070394:3: HTTP::uri in rule (dynamic_fallback) requires an associated FASTHTTP profile on the virtual server (some.webserver.com)

 

 

Inserting the new code to a second rule and binding this as additional resource in the iRule field results in the same error.

 

 

Now I wonder why I am allowed to use [HTTP::uri] in the first part of the rule, but not in second! I cannot change the profile to a FASTHTTP profile, because I need cookie persistence and SSL termination for the pool of webservers.

 

 

Any suggestions how to get rid of this problem?

 

Thanks in advance!

 

 

Martin