[DOCS] Adds link to clear role cache API (elastic/x-pack-elasticsearch#4405)
Original commit: elastic/x-pack-elasticsearch@a79714510bd4dfee2ea979109e1dc2787560db7a
@@ -19,6 +19,9 @@ remote authentication service or hitting the disk for every incoming request.
There are realm settings that you can use to configure the user cache. For more
information, see {xpack-ref}/controlling-user-cache.html[Controlling the User Cache].
+To evict roles from the role cache, see the
+<<security-api-clear-role-cache,Clear Roles Cache API>>.
+
==== Path Parameters
`realms` (required)::
