On Fri, 14 Sep 2007, Joerg Delker wrote: > Hi Folks, > > I just found this thread in the archives describing my problem. > So let me tune in so we hopefully can find that bummer. > > Symptoms: > I'm also suffering from very slow connections via the VIPs in contrast to > accessing the real servers directly. A wget fetch from a particular web takes > ~40sec via the VIP and ~4sec directly. > > Analysis: > Looking at the related tcpdumps for the VIP traffic I see: > in dump (Client<->Director): > * TCP Retransmissions VIP->Client > * Duplicate ACKs Client->VIP > in dump (Director<->Realserver) > * TCP Retransmissions Realserver->Client > * Duplicate ACKs Client->Realserver > * TCP previous segment lost Client->Realserver (appears after each Dup ACK) > > Note: Routing client traffic directly to the real server shows perfect TCP > traffic! > > Environment: > The director is acting as firewall, router, loadbalancer using > ipvsadm v1.24 2003/06/07 (compiled with popt and IPVS v1.2.0) > and configured as LVS-NAT to access the real servers. > Kernel tested: 2.6.16, 2.6.18, 2.6.22 - no difference noticable > Hardware issues can be ruled out as the directly routed traffic uses exact > the same path.
there's a section on slow loading webpages in (I think) the mini-HOWTO. Also try your setup without the firewall rules Joe -- Joseph Mack NA3T EME(B,D), FM05lw North Carolina jmack (at) wm7d (dot) net - azimuthal equidistant map generator at http://www.wm7d.net/azproj.shtml Homepage http://www.austintek.com/ It's GNU/Linux! _______________________________________________ LinuxVirtualServer.org mailing list - [email protected] Send requests to [EMAIL PROTECTED] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
