On Mon, Dec 14, 2009 at 11:16:44AM +0200, Aleksey Chudov wrote: > Hello! > > Finally we have place our LVS in production. We doesn't find any errors in > test scheme. But there is problem in production environment. We are using > connection sync and every second above 100 error messages comes to > /var/log/messages on LVS Master server. > > Dec 14 12:06:42 lvs-master kernel: IPVS: ip_vs_send_async error > Dec 14 12:06:42 lvs-master kernel: IPVS: ip_vs_send_async error > Dec 14 12:06:42 lvs-master kernel: IPVS: ip_vs_send_async error > Dec 14 12:06:42 lvs-master kernel: IPVS: ip_vs_send_async error > > I try to start connection sync daemon different ways: > > 1) > /sbin/ipvsadm --start-daemon=master --mcast-interface=eth0 --syncid=1 > /sbin/ipvsadm --start-daemon=backup --mcast-interface=eth0 --syncid=1 > > 2) > /sbin/ipvsadm --start-daemon=master > /sbin/ipvsadm --start-daemon=backup > > 3) > /sbin/ipvsadm --start-daemon=master --mcast-interface=eth1 > /sbin/ipvsadm --start-daemon=backup --mcast-interface=eth1 > > But every time get the same errors. I can see connections from lvs master on > lvs backup so connection sync is work. > > My kernel version is 2.6.31.2. > My ipvsadm version is ipvsadm-1.24.
At a wild guess I'd say that there is some issue with the network configuration on your production machine such that the kernel can't send packets to the multicast group 224.0.0.81. Perhaps a missing route? _______________________________________________ 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
