Need Cookie Hash iRule Help

In case of "least connections" algorithm, (as you had first selected) it is possible that the BIG-IP will pick the same member over and over again if all pool members have the same number of connections.

 

e.g. if pool member A and B both have 0 connections. Assume request 1 will be handled by A. When request 2 comes in, if A is done with request 1, then it is possible that A will also handle request 2 (since A and B are again at 0 conns).

 

 

I briefly tried the irule you provided with my machine and for round robin I could see my requests going to both pool members (i'm using version 9.3.1).

 

 

Could you add the following event/log statement to your irule?

 

when SERVER_CONNECTED {

 

log local0. "[LB::server addr]"

 

}

 

 

This will show the actual pool member selected by big-ip each time after it hits the else clause with the "default" log message in the rule.