Jay Modi 07ef8ccff4
Allow dynamic updates for index.hidden setting (#52837)
This commit changes the `index.hidden` setting from being final to a
dynamic setting. While the setting being final allows for easier
reasoning about an index, making this setting update-able has more
benefits in that we can upgrade existing indices to be hidden and it
will enable future features that would dynamically make indices hidden.

Backport of #52772
2020-02-26 11:46:29 -07:00
..