Universal Persistence for URI String

Hi Innoue,

 

If you have 2 virtual servers but share the same IP address then yes you can share the same persistance profile and match it across the 2 virtualls.

 

 

However, when it comes to 2 separate Virtual IP addresses then I think Election HASH iRule applied to both virtuals might do the trick

 

 

Here is the code

 

  Election Hash iRule 
 Compute Hash - MD5 
 
 MD5 calculation of Server + URI 
 Rule selects Server that scores highest 
 
 S = Current high score 
 N = Node being evaluated 
 W = Winning node 
 
when HTTP_REQUEST timing on {
 set S "" 
 foreach N [active_members -list ] { 
 if { [md5 $N [URI::query [HTTP::uri]] ticket] > $S } {
 set S [md5 $N[HTTP::uri]] 
 set W $N
 }
 }
 pool  member [lindex $W 0] [lindex $W 1]
}

 

 

 

You can find more details about it on the following link

 

http://devcentral.f5.com/wiki/iRules.ElectionHashLoadBalancingAndPersistence.ashx

 

 

I hope this helps

 

Bhattman