Elasticsearch: How to show cluster settings "default" values ?

[thechile]

Using indices.recovery.max_bytes_per_sec as an example, it defaults to 40mb. If i make no change to this setting via the API and it's not defined in the .yaml then trying to view this value using something like curl -XGET "http://localhost:9200/_cluster/settings?pretty" just gives me

{
  "persistent" : { },
  "transient" : { }
}

Is there anyway to show these default values pragmatically, instead of having to reference the documentation ? I wasn't able to find a way to query cluster settings, and return all current active settings. Not just those that have been user modified from their defaults, which i assume what _cluster/settings returns.

It would be nice if it also included settings that have been set via elasticsearch.yml and not just transient/persistent cluster settings changed via the API.

Thanks
Scott

[s1monw]

Closed by #16054 - in 5.0 you can specify ?include_defaults=true to get all settings including node defaults