Hi again, Is there a logical reason as to why one of the servers is having so many connections being turned into inactive (FIN_WAIT) so quickly?
I have read that ipvsadm should keep connections established for a while but I simply cannot understand why the load balancer is behaving like this. Any clues will be appreciated. Thanks again. ---------- Forwarded message ---------- From: Andre Magri <[email protected]> Date: 12 February 2010 17:10 Subject: Re: [lvs-users] InActConn dilemma To: "LinuxVirtualServer.org users mailing list." < [email protected]> ipvsadm -Ln --stats IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Conns InPkts OutPkts InBytes OutBytes -> RemoteAddress:Port FWM 80 2053990 19742182 0 4960M 0 -> www2:80 59309 3268078 0 896604K 0 -> www1:80 1994681 16474104 0 4064M 0 Except for the NIC team the webservers are configured exactly the same. Every 1.0s: ipvsadm -Ln --rate Fri Feb 12 17:08:59 2010 IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port CPS InPPS OutPPS InBPS OutBPS -> RemoteAddress:Port FWM 80 134 1280 0 369766 0 -> www2:80 4 214 0 45576 0 -> www1:80 130 1066 0 324189 0 Am I going to have a problem when heavy traffic hits? Thanks! On 12 February 2010 16:33, Graeme Fowler <[email protected]> wrote: > On Fri, 2010-02-12 at 16:25 +0100, Andre Magri wrote: > > IP Virtual Server version 1.2.1 (size=4096) > > Prot LocalAddress:Port Scheduler Flags > > -> RemoteAddress:Port Forward Weight ActiveConn InActConn > > FWM 80 wlc persistent 1200 > > -> www2.mysite.com:http Route 1 359 146 > > -> www1.mysite.com:http Route 1 127 *12176* > > > > The high rate of InActConn for www1 is worrying me. > > That indicates one of several possible things: > > 1. www1 is handling more connections than www2, or > 2. www1 is not closing connections properly > > Are the webservers configured in the same way? > > What do you see if you do: > > ipvsadm -Ln --stats > > Also, if you do this: > > watch -n1 -- ipvsadm -Ln --rate > > [use ctrl-c to exit] > > what do you see? I'd surmise that www1 is handling a lot more traffic > than www2. > > Graeme > > > _______________________________________________ > 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 > _______________________________________________ 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
