Hi Graeme, Our two servers are the exact same Dell Poweredge model with the same cpu's and same memory modules except for the network cards where one of them is running in a team. They are running IIS and I can see from perfmon that one of them (www1) is getting a high amount of requests where as the other is quite free.
If I observe connections on both servers (ipvsadm -lcn), connections to www2 are being kept established and therefore further traffic is done through these already 'active' connections, listed as ESTABLISHED, until they are timed out. www1 (or LVS, I'm getting confused here) is not keeping these connections alive and therefore turn into FIN_WAIT state until the 2 minutes are up. Which one is behaving incorrectly here - www1 or www2? This will help me establish where the problem is. Thank you once again. On 14 February 2010 00:51, Graeme Fowler <[email protected]> wrote: > On Sat, 2010-02-13 at 20:48 +0100, Andre Magri wrote: > > 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? > > You are using the WLC scheduler - the server with the least number of > *active* connections gets the next new one. > > It looks to me like your two servers are different specs, perform > differently or Apache is configured differently because one of them is > turning connections over far more quickly than the other. > > Because you're using -DR, the director never sees the session completely > close so holds sessions in "inactive" state until TCP timeout. > > I don't believe you have an LVS problem here; you have a problem that > your two webservers are performing differently. Is on set to use Apache > KeepAlives, by any chance? > > 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
