We are having some issues where when using a catch-all persistence VIP for an FTP service and not any of the ftp ip_vs kernel modules. Sometimes when a client sends the request to the data port it lands on the wrong backend FTP server instead of the original control sessions backend. We have multiple director nodes in an active/active setup using anycast/BGP to get traffic to the nodes. So it is possible and even likely that the second connection to the data port would land on a different director node than the control session. We do have session syncing working between these nodes.
Is the persistence template state synced between nodes? Or, does each node create its own persistence template and could hash to a different backend than the other nodes? We are using WRR right now for the lb algorithm. We are running on Centos 7.6 kernel 3.10.0-957 Example of our configuration: -A -t vip:0 -s wrr -p 600 -a -t vip:0 -r realip_1:0 -i -w 1 -a -t vip:0 -r realip_2:0 -i -w 1 -a -t vip:0 -r realip_3:0 -i -w 1 -a -t vip:0 -r realip_4:0 -i -w 1 Thank you, Phillip Moore _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org Send requests to lvs-users-requ...@linuxvirtualserver.org or go to http://lists.graemef.net/mailman/listinfo/lvs-users
