Hi, I have a very light infrastructure, with 2 servers acting as directors AND real servers.
I came across the packet storm problem where when the MASTER forwards a connection to the real server on the BACKUP (via DR), the BACKUP treats it as a VIP connection to be loadbalanced rather than a real server connection to process. And decides to load balance it back to the MASTER ..... I'm sure there is a way to do it, maybe with iptables. I'm looking for a schema explaining how a packet coming on an interface traverses the various layers (ipvs, netfilter, routing) so I could figure out how to do it. My chance is that I have 2 physical interfaces, one public and one private, so if a packet arrives on the private interface for the VIP, it's a DR from the MASTER, and if it comes on the public, it's pre-loadbalance traffic. Another option would be to be sure that the tables are in sync between the 2 machines so the BACKUP know that the connection has to be directed locally. I have tried to setup that feature, but it doesn't seems to sync really. PS: no arp issues (kernel 2.6 with net.ipv4.conf.all.arp_ignore = 1 and net.ipv4.conf.all.arp_announce = 2) PS2: the realserver on the MASTER works fine. -- Thomas _______________________________________________ LinuxVirtualServer.org mailing list - [email protected] Send requests to [EMAIL PROTECTED] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
