Error message: "Cannot accept more connections"

This message, which can be found in the vovserver log, means that the table of connection is filling up and the vovserver refuses to accept more. This is connected to the number of file descriptors available to vovserver. This is typically around 1,000 for small compute farms or 65,000 and even more for large compute farms.

The remedy could be:
  • Find out if there are abusers of the system. You can do that with:
    % vovshow -users
    % vovshow -clients

    If an abuser is identified, perhaps he or she can be educated on the socially responsible use of the computing resources.

  • Increase the number of file descriptors available to the vovserver. Check the Server Capacity page for more details. This will require a restart of vovserver.