Ok I'll need some time to work through some of these suggestions and report results. I'll keep ya posted. thx for the suggsetions.
On 8/3/07, Graeme Fowler <[EMAIL PROTECTED]> wrote: > > On Fri, 2007-08-03 at 15:16 -0600, Dan Baughman wrote: > > One, physically separate load balancer. (ubuntu 6.06). Two physically > > separate real servers. This is all brand spanking new, high end intel > > hardware. Running DR ( with the loopback adapater on the 2k3 servers). > > Aha... a thought comes to mind here. > > > The real servers are using the same physical interface to respond to the > > load balanced requests as to the direct requests. > > OK. > > > The more hops out the more the issue presents itself. I am trying to by > > pass the loadbalancer in the problem case to see if it is even the > issue. > > PMTUD, aka Path MTU discovery. > > Somewhere in the path between you and your clients is a router which > isn't honouring ICMP replies telling it that DEST_UNREACH/FRAG_NEEDED. > > Try tuning your MTU down on both the W2K3 servers *and* the director so > they're all 400 (you'll have to look up how to do this for your distro, > but it usually isn't hard). It'll make the network seem less efficient > on the face of it, but "less efficient" might mean "working", and if it > does then you're sorted. > > If that fixes things, turn it up in increments of 100 bytes until it > breaks; that way you find the "weakest link" and can then set the MTU to > be lower than that value. > > Graeme > > > _______________________________________________ > LinuxVirtualServer.org mailing list - [email protected] > Send requests to [EMAIL PROTECTED] > or go to http://lists.graemef.net/mailman/listinfo/lvs-users > _______________________________________________ LinuxVirtualServer.org mailing list - [email protected] Send requests to [EMAIL PROTECTED] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
