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Forum Discussion

Christer_377235's avatar
Christer_377235
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Nov 19, 2018

Both iRule and Cookie persistence?

Is it possible to have a rule where you redirect to pool members depending on url (always has priority) but you also have some kind of persistence table so you can drain connections so users are not ...
application delivery
BIG-IP
Christer_377235's avatar
Christer_377235
Icon for Nimbostratus rankNimbostratus
Nov 19, 2018

Detailed description part 2:

 

So we have an iRule that redirects /a to pool a and my-application/b* to pool b. If it does not have id at all and only have / then it is the first request from the external application and it can be load balanced to any server to create the initial session.

 

This works well but as an extension to this I would like to be able to be able to perform application updates or maintenance without disturbing users. So I want to be able to put "server a" in maintenance mode and that would mean that:

 

  1. All new request from the external application to my-application/ would end up at "server b".
  2. Users who already have a session created on "server a" can finish working, this can take 30 minutes or more.