anchor.diff:  print "<body>"
   print "<h1>tile.openstreetmap.org debug</h1>"
   print "<h2>Server Stats</h2>"
  +if cache_server:
  +  print "<p><b>Cache Server</b>: %s</p>" % cache_server
   print "<p>"
   print "<b>Render Server</b>: <%= node['fqdn'] %><br />"
   print "<b>Load Average</b>: %s</p>" % loadavg
  
positive.code: import cgi
  import cgitb
  import os
  import sys
  import resource
  import time
  
negative.code: if not os.environ.has_key('HTTP_USER_AGENT'):
    os.environ['HTTP_USER_AGENT'] = 'NONE'
  
  # Get the cache server name
  if os.environ.has_key('HTTP_VIA'):
    cache_server = re.search('[a-z0-9-]+\.openstreetmap\.org', os.environ['HTTP_VIA']).group(0)
  else:
    cache_server = None
  
  # Get the load average
  loadavg = float(open("/proc/loadavg").readline().split(" ")[0])
  
  