On Wed, 2007-04-04 at 20:35 +0100, Iain Young wrote: > a) showing "System CPU" at around 20%, which vanishes if I kill > LVS.
This shouldn't be. My systems sit at idle, basically, waiting to do something. The heartbeating should be of minimal impact. What method are you using for director/real server failover? keepalived, heartbeat/ldirectord or something else? It would help if you posted configs. > b) Sending out an awful lot of LAN traffic (120,000 packets an > hour!), which I'm guessing is multicast [which is to be expected], > but surely it doesnt need *that* many packets! Again, it dissapears > when I shutdown LVS. Depending on your setup, you should have, lets say, 1 packet per machine per second. Perhaps 2 if you use two different heartbeat methods. So, say, about 3600/server * 2, 7200, * 2 for multiple heartbeat methods, 14400... Now lets assume that because I don't pay much attention to the packets flying back and forth between the machines I'm off by alot... I doubt I'm off by an order of magnitude... am I? > Curiously, even if I start LVS w/o running the master and backup > daemons, then I also still both effects. This is on Ubuntu Feisty, > kernel 2.6.20, ipvsadm 1.24 > > > Anyone have any ideas if this is a) Normal, b) What I might have > missed, c) How to fix it ? A) Not likely B & C) Not really sure without seeing configs or knowing what method you're using. > I could move the LAN traffic off to another interface, and a crossover > cable, but that really only moves the problem, and doesnt sort the > CPU system issue. Exactly. There's something else going on here. Masking the problem won't do much good. Do the directors and real servers (I realize they're the same box, I more mean the services) act as expected? Do they fail over from director to director? Do real servers get removed as expected when shutdown? -- Sal Tepedino <[EMAIL PROTECTED]> _______________________________________________ LinuxVirtualServer.org mailing list - [email protected] Send requests to [EMAIL PROTECTED] or go to http://www.in-addr.de/mailman/listinfo/lvs-users
