IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
The cluster get settings API allows to retrieve the cluster wide settings.
GET /_cluster/settings
Or
GET /_cluster/settings?include_defaults=true
In the second example above, the parameter include_defaults ensures that the settings which were not set explicitly
are also returned. By default include_defaults is set to false.