Hello, I have two IPVS hosts (with heartbeat), managing about 20 virtual services with ~150 workers. I use ldirectord, direct routing, wrr and wlc schedulers. After upgrading one of the IPVS hosts to 2.6.33 (from 2.6.30), I am experiencing problems - the workers are being removed and re-added by ldirectord frequently, and sometimes even the whole virtual service stalls and is redirected to the fallback server.
I am still not sure whether the kernel is the cause, but there is a strange thing: "ipvsadm -L" reports 0 active connections for every service and worker, the number of inactive connections reported is also almost always 0, very rarely (about 1 worker out of 10-20) is reported to have 1 inactive connection. This does not match the reality, and indeed, "wc -l /proc/net/ip_vs_conn" reports a more reasonable number of about 50-60 thousand connections total. Maybe this can confuse the wlc (and possibly also wrr) scheduler enought to direct all connections to a single worker until it becomes overloaded? Is it a kernel bug IPVS? Has anybody seen something similar? Thanks, -Yenya -- | Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> | | GPG: ID 1024/D3498839 Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E | | http://www.fi.muni.cz/~kas/ Journal: http://www.fi.muni.cz/~kas/blog/ | Please don't top post and in particular don't attach entire digests to your mail or we'll all soon be using bittorrent to read the list. --Alan Cox _______________________________________________ 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