Unable to identify HTTP header variable for pool redirection

Try replacing $HTTP::header value with [HTTP::header "datacenter"].

 

 

But what are you actually trying to accomplish? A pool and pool member selection has already been made by the time the HTTP_RESPONSE event has been triggered. Is the datacenter header inserted by the client in requests or the server in responses? What do you want to do when you see this header?

 

 

Aaron