What farm profile are you working with? If TCP: The exchange server will be marked as offline before of the next connection without open, so if the load balancer takes 2 minutes or more to decide to send the next connection to the exchange server downed at the moment zen tries to open a TCP socket and fails is when the server will be marked as down, you are not going to see the backend as down at the same time bakend goes down, only at the time that the load balancer decides to use it and it fails.
The maintenance mode disables the backend but it doesn't delete the persistent sessions, so if you are working with persitence mode enabled the next connections are not going to be sent to this backend, but memorized sessions are maintained until they die. Regards! 2015-06-11 17:25 GMT+02:00 VELARTIS Philipp Dürhammer < p.duerham...@velartis.at>: > I was testing with our exchange environment and after putting one server > offline the zen loadbalancer needs about 2!!! minutes to check that the > servers are offline > > I could verify this with tcp dump. > > Also i was playing around with maintainance mode. Absolutely nothing > happens. I can see in tcp dump that all requests still go to the server in > maintainance mode. > > When i delete a backend interface still connections go the deleted server > … only changing the port oft the farm and changing it back helps (seems > then pen is restartet) > > > > Is this a normal behavior??? > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Zenloadbalancer-support mailing list > Zenloadbalancer-support@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support > > -- Load balancer distribution - Open Source Project http://www.zenloadbalancer.com Distribution list (subscribe): zenloadbalancer-support@lists.sourceforge.net
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