On 03-Jul-2014 4:33 pm, "Malcolm Turnbull" <malc...@loadbalancer.org> wrote: > > Nilesh, > > How long does the upload take? > Its not a simple question of TCP time out? > > Take a look at : > http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.services.general.html#tcpip_idle_timeout > > > > > > > On 2 July 2014 19:24, Nilesh Govindrajan <m...@nileshgr.com> wrote: > > > On Wed, Jul 2, 2014 at 7:19 PM, Nilesh Govindrajan <m...@nileshgr.com> > > wrote: > > > Hi, > > > > > > We have a setup - 1 director and 2 real servers and LVS TUN is used > > > because they're located at different places. > > > > > > Now, the problem is that whenever someone tries to upload a large > > > image (~400 KB) via CloudFlare, it just gets stuck and fails. The same > > > works when I do it directly. > > > > > > Tried contacting CloudFlare, and they say everything is right on their > > side. > > > > > > I suspect this has something to do with LVS Tun. What could be the > > problem? > > > > > > Tried setting MTU = 1400 as per > > > > > http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.LVS-Tun.html#setting_mtu_by_route > > > but that doesn't help either. > > > > Okay some info on the MTU thing, I was seeing ICMP frag required > > messages in tcpdump on director. > > As per the guide, I changed MTU of outgoing interface on real servers > > to 1480 and changed MTU of tunnel to 1500. It stopped those messages > > and now I see lot of packets with F flag possibly indicating that > > fragmentation works correctly. But uploads still don't work. > > > > _______________________________________________ > > Please read the documentation before posting - it's available at: > > http://www.linuxvirtualserver.org/ > > > > LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org > > Send requests to lvs-users-requ...@linuxvirtualserver.org > > or go to http://lists.graemef.net/mailman/listinfo/lvs-users > > > > > > -- > Regards, > > Malcolm Turnbull. > > Loadbalancer.org Ltd. > Phone: +44 (0)330 1604540 > http://www.loadbalancer.org/ > _______________________________________________ > Please read the documentation before posting - it's available at: > http://www.linuxvirtualserver.org/ > > LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org > Send requests to lvs-users-requ...@linuxvirtualserver.org > or go to http://lists.graemef.net/mailman/listinfo/lvs-users
It's not a normal time out because I'm on a 24 Mbps connection and my server has 1 Gbit. When I connect to the real servers directly, it works. I'm trying to upload a 500 KB image which uploads in a very short time. When uploading via director, it just stalls indefinitely and then times out. _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org Send requests to lvs-users-requ...@linuxvirtualserver.org or go to http://lists.graemef.net/mailman/listinfo/lvs-users
