The MySQL Keyring None. Return value: Returns 1 for success, or  NULL  and an error for failure. Associated keyring plugin:  keyring_hashicorp When invoked, the  keyring_hashicorp_update_config()  function causes  keyring_hashicorp to perform a runtime reconfiguration, as described in keyring_hashicorp Configuration. This function requires the  SYSTEM_VARIABLES_ADMIN  privilege because it modifies global system variables. Arguments: None. Return value: Returns the string  ’Configuration update was successful.’  for success, or ’Configuration update failed.’  for failure. This section describes sources of information about keyring use. To see whether a keyring plugin is loaded, check the  INFORMATION_SCHEMA.PLUGINS  table or use the SHOW PLUGINS  statement (see Section 5.6.2, “Obtaining Server Plugin Information” ). For example: To see which keys exist, check the Performance Schema  keyring_keys  table: To see whether a keyring component is loaded, check the Performance Schema keyring_component_status  table. For example: 1446 mysql>  SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE ’keyring%’; 6.4.4.16 Keyring Metadata • keyring_hashicorp_update_config() +--------------+---------------+ | PLUGIN_NAME | PLUGIN_STATUS | +--------------+---------------+ | keyring_file | ACTIVE | +--------------+---------------+ +-----------------------------+--------------+----------------+ | KEY_ID | KEY_OWNER | BACKEND_KEY_ID | +-----------------------------+--------------+----------------+ | audit_log-20210322T130749-1 | | | | MyKey | me@localhost | | | YourKey | me@localhost | | +-----------------------------+--------------+----------------+ +---------------------+-------------------------------------------------+ | STATUS_KEY | STATUS_VALUE | +---------------------+-------------------------------------------------+ | Component_name | component_keyring_file | | Author | Oracle Corporation | mysql>  SELECT * FROM performance_schema.keyring_component_status; mysql>  SELECT * FROM performance_schema.keyring_keys;