iRule not working when HTTP cookie header exceeds certain length?

First thing... you're using global variables (Ex: $::cookie_name) when it looks like the data is specific to the connection. Can you first try removing the :: from the variable names to use local variables (Ex: $cookie_name)?

 

 

Also, I don't think you need to save the name and value of the cookies and then re-insert them with the updated domain. You can just set the domain using: 'HTTP::cookie domain $cookie_name $my_domain'.

 

 

Lastly, do you have multiple pools that could be used per individual virtual server? ie, are you using another rule to select a pool? If not, you can get move the code from LB_SELECTED to HTTP_REQUEST to consolidate.

 

 

Can you retest with local variables and see if you still encounter the failure?

 

 

Aaron