How to enable compatibility mode on existing Opensearch domain

Hi there, yes running the following command will enable compatibility mode in existing OpenSearch domain

PUT /_cluster/settings
{
  "persistent" : {
    "compatibility.override_main_response_version" : true
  }
}

If this is already executed, to verify if compatibility mode is enabled, run following command to list all current settings

GET _cluster/settings?include_defaults=true

And look for following section to see if compatibility mode is enabled.

"compatibility" : {
      "override_main_response_version" : "true"
    }

If you are not able to enable the setting, please open a Support case with AWS OpenSearch so that a proper solution can be provided upon looking into other resources.

I am able to edit these settings but they only effect the master services and not the nodes. The nodes are what Kibana checks for compatiblity.