Graeme,Thanks for the quick reply! In answer to your question, the stall occurs in about 30 seconds, and the overall throughput is significantly slower to begin with. For example, from my workstation to a node in the cluster, I get a throughput of around 9MB/s. Going through the redirectors, it starts off at 1.2 MB/s and then stalls very quickly after that. I actually added the "persistent = 600" in an attempt to see if that would help the situation, but it didn't. Last night I also disabled IPV6 on all nodes to see if that had an impact, but no joy there either. I'm happy to run tcpdump if it can provide any clues.
-- scooter On 12/02/2009 01:26 AM, Graeme Fowler wrote:
On Tue, 2009-12-01 at 15:02 -0800, Scooter Morris wrote:I have a two-node LVS configuration that I'm using as a front-end to a three-node cluster. It works really well for ssh, http, https, etc. But, when a user tries to use scp to copy a large file or directory to the cluster, it commonly stalls and doesn't complete.OK...scp directly to any node of the cluster works fine, either from outside the network or from inside it.OK...Things only crawl when using scp to go through the redirectors. Here are the relevant parts of the configuration file:That all looks sane enough. Question: how long does it take before a stall occurs? If it's around about 10 minutes... you should be able to see what I'm getting at there. We might need you to do some tests while running tcpdump, to see where the stall occurs. 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
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