anchor.diff:  example of changing the address all network based modules will use to
   bind and publish to:
   
  -[source,js]
  +[source,yaml]
   --------------------------------------------------
   network :
       host : 10.0.0.4
  
positive.code: Also, don't forget to give your production cluster a name, which is used
  to discover and auto-join other nodes:
  
  [source,js]
  --------------------------------------------------
  cluster:
    name: <NAME OF YOUR CLUSTER>
  
negative.code: In order to test how many open files the process can open, start it with
  `-Des.max-open-files` set to `true`. This will print the number of open
  files the process can open on startup.
  
  Alternatively, you can retrieve the `max_file_descriptors` for each node
  using the <<cluster-nodes-info>> API, with:
  
  [source,js]
  --------------------------------------------------
  curl localhost:9200/_nodes/process?pretty
  --------------------------------------------------
  
  
  [float]
  [[setup-configuration-memory]]
  