anchor.diff:  `reindex.remote.whitelist` property. It can be set to a comma delimited list
   of allowed remote `host` and `port` combinations (e.g.
   `otherhost:9200, another:9200, 127.0.10.*:9200, localhost:*`). Scheme is
  -ignored by the whitelist - only host and port are used, for example:
  +ignored by the whitelist -- only host and port are used, for example:
   
   
   [source,yaml]
  
positive.code: parallelizing the process fairly simple: split the list of indices to reindex
  and run each list in parallel.
  
  One off bash scripts seem to work nicely for this:
  
  [source,bash]
  ----------------------------------------------------------------
  
negative.code: }
  --------------------------------------------------
  // TESTRESPONSE
  <1> This object contains the actual status. It is identical to the response JSON
  except for the important addition of the `total` field. `total` is the total number
  of operations that the `_reindex` expects to perform. You can estimate the
  progress by adding the `updated`, `created`, and `deleted` fields. The request
  