*Please could you reproduce the issue and meanwhile the client is waiting to be redirected to other backend (2 minutes timeout) could you execute the next command?*
*netstat -putan* *paste me the output* *Feel free to send me directly the output to my email. * 2015-06-13 18:48 GMT+02:00 VELARTIS Philipp Dürhammer < [email protected]>: > Hi > > > > We work with the tcp profiles. > > I dont get your answer 100%. > > > > Our test: unplug the network from one of the backend servers. The light > goes red imeadently but all clients connected to this backend server have a > timeout of 2 minutes. And it does not help to make a reload of the > webbroweser if i use owa. (try to reconnect) Other clients connected to > other backend still work… > > I also set the option to „backend respone time sec = 2“ > > I dont get why the loadbalancer show the backend as red but needs 2 > minutes to redirect client which where connected to this backend. > > This is not a behavour that should be like this. A friend of mine uses the > KEMP loadbalancer and when a backend server dies it switches over in 2-5 > seconds… > > > > Like this if a server is going down all outlooks connected to the failed > backend server will hang for about 2 minutes! > > > > Regards! > > > > *Von:* Emilio Campos [mailto:[email protected]] > *Gesendet:* Freitag, 12. Juni 2015 13:34 > *An:* [email protected] > *Betreff:* Re: [Zenloadbalancer-support] backend failover very slow > > > > 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 < > [email protected]>: > > 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 > [email protected] > https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support > > > > > -- > > Load balancer distribution - Open Source Project > http://www.zenloadbalancer.com > Distribution list (subscribe): > [email protected] > > > -- > ✓ Geprüft von IKARUS anti.virus > http://www.ikarussecurity.com > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Zenloadbalancer-support mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support > > -- Load balancer distribution - Open Source Project http://www.zenloadbalancer.com Distribution list (subscribe): [email protected]
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