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  • DR >> tcpip timing.

    Issue:

    When doing a DR animation-job, the initiating machine starts sending information to slave machines. The longer the job takes the more resends of informating occur. After a while the slave machines drop-out on the rendering job, with an "not responding" message.

    We are using VIZ 2007 & VRAY 1.5 RC3 on 10 Windows XP Pro sp2 machines, and 3 Windows 2000 Pro workstation machines.

    We are trying to find out what the issue is, causing the drop-out of the slave-machines.


    Here is what we know:

    There is a known issue with XP SP2, limititing the number of concurrent tcpip-connections to 10 per second, whereas earlier versions of the OS system were unlimited. (There is a different limitation for all NT platform machine which limits the number of connection to network shares to 10 for workstation editions.)
    The 10 connections per second limition is know to be an issue for P2P programs as well, giving simular behaviour. Dropping out on network-connections, eventually resulting in network congestion.

    I suspect we have a simular problem with the V-RAY spawner. In many P2P programs, developers started building in a timing the mechanism for the outgoing tcpip connections, to stay within the SP2 connection limits of 10 per second.

    Does anyone know how VRAY operates in this manner???

  • #2
    i think it's 10 NEW connections per second...

    this should only be an issue for more than 10 DR nodes?

    i used xpantispy ( http://xp-antispy.org/content/view/17/45/ )
    to patch the connection limit.

    without it, using things like bit torrent freezes the whole network after some time...very irritating.
    Marc Lorenz
    ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
    www.marclorenz.com
    www.facebook.com/marclorenzvisualization

    Comment


    • #3
      Originally posted by plastic_
      i think it's 10 NEW connections per second...

      this should only be an issue for more than 10 DR nodes?

      i used xpantispy ( http://xp-antispy.org/content/view/17/45/ )
      to patch the connection limit.

      without it, using things like bit torrent freezes the whole network after some time...very irritating.
      You used it to fix the problem?

      Comment


      • #4
        i'm not using DR, but it fixed my p2p problems, so if it's related, it may be a good idea to try it.
        but it is patching a windows system file, which is a bit messy (windows file protection). sometimes windows auto update restores the old way again.
        Marc Lorenz
        ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
        www.marclorenz.com
        www.facebook.com/marclorenzvisualization

        Comment

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