/etc/ganglia/conf.d/xenstats.pyconf.disabled is in ganglia-monitor-python 3.6.0-6ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35  | modules {
   module {
      name = "xenstats"
      language = "python"
   }
}
collection_group {
   collect_every = 15
   time_threshold = 30
   metric {
     name = "xen_vms"
     value_threshold = 0
   }
   metric {
      name = "xen_mem_use"
      value_threshold = 1.0
   }
}
collection_group {
   collect_once = yes
   time_threshold = 20
   metric {
      name = "xen_mem"
      value_threshold = 1.0
   }
   metric {
      name = "xen_cpu"
      value_threshold = 0
  }
}
 |