Performance Schema Keyring Tables The  firewall_membership  table provides a view into the in-memory data cache for MySQL Enterprise Firewall. It lists the members (accounts) of registered firewall group profiles. It is used in conjunction with the  mysql.firewall_membership  system table that provides persistent storage of firewall data; see MySQL Enterprise Firewall Tables. The  firewall_membership  table has these columns: The group profile name. The name of an account that is a member of the profile. The  firewall_membership  table has no indexes. TRUNCATE TABLE  is not permitted for the  firewall_membership  table. The  firewall_membership  table was added in MySQL 8.0.23. The following sections describe the Performance Schema tables associated with the MySQL keyring (see Section 6.4.4, “The MySQL Keyring” ). They provide information about keyring operation: The  keyring_component_status  table (available as of MySQL 8.0.24) provides status information about the properties of the keyring component in use, if one is installed. The table is empty if no keyring component is installed (for example, if the keyring is not being used, or is configured to manage the keystore using a keyring plugin rather than a keyring component). There is no fixed set of properties. Each keyring component is free to define its own set. Example  keyring_component_status  contents: The  keyring_component_status  table has these columns: • STATUS_KEY • keyring_keys : Metadata for keys in the MySQL keyring. • keyring_component_status : Information about the keyring component in use. • MEMBER_ID • GROUP_ID 27.12.18 Performance Schema Keyring Tables 27.12.18.1 The keyring_component_status Table mysql>  SELECT * FROM performance_schema.keyring_component_status; +---------------------+-------------------------------------------------+ | STATUS_KEY | STATUS_VALUE | +---------------------+-------------------------------------------------+ | Component_name | component_keyring_file | | Author | Oracle Corporation | | License | GPL | | Implementation_name | component_keyring_file | | Version | 1.0 | | Component_status | Active | | Data_file | /usr/local/mysql/keyring/component_keyring_file | | Read_only | No | +---------------------+-------------------------------------------------+ 5044