Jim Ferenczi d6445fae4b Add a cluster setting to disallow loading fielddata on _id field (#49166)
This change adds a dynamic cluster setting named `indices.id_field_data.enabled`.
When set to `false` any attempt to load the fielddata for the `_id` field will fail
with an exception. The default value in this change is set to `false` in order to prevent
fielddata usage on this field for future versions but it will be set to `true` when backporting
to 7x. When the setting is set to true (manually or by default in 7x) the loading will also issue
a deprecation warning since we want to disallow fielddata entirely when https://github.com/elastic/elasticsearch/issues/26472
is implemented.

Closes #43599
2019-11-28 09:35:28 +01:00
..
2019-10-11 16:34:11 +03:00
2018-04-20 15:33:59 -07:00

Elastic License Functionality

This directory tree contains files subject to the Elastic License. The files subject to the Elastic License are grouped in this directory to clearly separate them from files licensed under the Apache License 2.0.