Christian, We use the OPS one packet scheduling patch for this....for people using UDP SIP gateways. can't remember where it is off the top of my head though. give me a shout if you can't find it.
2009/4/3 Christian Balzer <[email protected]> > > Hello, > > LVS defines a UDP connection as packets coming from the same source IP > within a 5 minute window. Which I guess for services like NTP would be a > good thing[TM]. > One can tune that down to 1 second with "ipvsadmin --set" and while this > will give a much better spread (or any spread at all, since with a packet > every 2 seconds on average here it never changed realservers with the > default) it still will stick with one realserver EXACTLY when you want it > to balance things most, at the most busy times. > This is for radius and if our last mile provider drops all of Tokyo in a > maintenance we get greeted with several 10000 auth-requests at the same > time. Precisely the time when sticking with one server is not what we > want. > So I presume the (in 2000) suggested UDP timeout=0 option never got > implemented, right? > And I guess using the NQ scheduler would not help in this situation either, > since the persistence happens before it can decide to route this to an > unused realserver, correct? > > I guess an idea for the future would be a scheduler that is not connection > but packet oriented, this would provide me exactly with what I need for > this (admittedly special) case. > > Oh and is there any other way than calling "ipvsadmin --set" to set those > timeout values in a persistent way? Feels a bit silly to write an > initscript just for this, but since these don't seem to be sysctl > variables... > > Regards, > > Christian > -- > Christian Balzer Network/Systems Engineer NOC > [email protected] Global OnLine Japan/Fusion Network Services > http://www.gol.com/ > https://secure3.gol.com/mod-pl/ols/index.cgi/?intr_id=F-2ECXvzcr6656 > > _______________________________________________ > Please read the documentation before posting - it's available at: > http://www.linuxvirtualserver.org/ > > LinuxVirtualServer.org mailing list - [email protected] > Send requests to [email protected] > or go to http://lists.graemef.net/mailman/listinfo/lvs-users -- Regards, Malcolm Turnbull. Loadbalancer.org Ltd. Phone: +44 (0)870 443 8779 http://www.loadbalancer.org/ _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - [email protected] Send requests to [email protected] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
