Forum Discussion
NimbostratusWhich is processed first...iRule or Persistence Record?
I am going to be adding an iRule to a VS that already has persistence configured. The iRule is going to be looking at a HTTP header and based off of it is setting a key and then setting persistence off of it. (ActiveSync deployment guide for persistence).
I currently have Source and Microsoft is asking to add the iRule. I am just thinking about if new connections are going to start using the iRule or the Persistence records that are already there.
Thanks.
2 Replies
giltjrI would assume that iRules are processed first as they can change persistence.
THiDepends on which event(s) the iRule is using. Typically Layer 7 persistence is set in when HTTP_REQUEST event. The persistence (profile ) occurs after HTTP_REQUEST_DATA event. So you can set/override the persistence profile (or merely select/set proper one) before it.
Have a look on What Lies Beneath's superb iRule Event Order - HTTPS/SSL -Client & Server Side. Check also iRule persist command from iRules Wiki.
