Options and Variables Introduced in MySQL 8.0 • caching_sha2_password_public_key_path : SHA2 authentication plugin public key path name. Added in MySQL 8.0.3. • clone_autotune_concurrency : Enables dynamic spawning of threads for remote cloning operations. Added in MySQL 8.0.17. • clone_buffer_size : Defines size of intermediate buffer on donor MySQL server instance. Added in MySQL 8.0.17. • clone_ddl_timeout : Number of seconds cloning operation waits for backup lock. Added in MySQL 8.0.17. • clone_donor_timeout_after_network_failure : The time allowed to restart a cloning operation after a network failure. Added in MySQL 8.0.24. • clone_enable_compression : Enables compression of data at network layer during cloning. Added in MySQL 8.0.17. • clone_max_concurrency : Maximum number of concurrent threads used to perform cloning operation. Added in MySQL 8.0.17. • clone_max_data_bandwidth : Maximum data transfer rate in MiB per second for remote cloning operation. Added in MySQL 8.0.17. • clone_max_network_bandwidth : Maximum network transfer rate in MiB per second for remote cloning operation. Added in MySQL 8.0.17. • clone_ssl_ca : Specifies path to certificate authority (CA) file. Added in MySQL 8.0.14. • clone_ssl_cert : Specifies path to public key certificate file. Added in MySQL 8.0.14. • clone_ssl_key : Specifies path to private key file. Added in MySQL 8.0.14. • clone_valid_donor_list : Defines donor host addresses for remote cloning operations. Added in MySQL 8.0.17. • connection_control_failed_connections_threshold : Consecutive failed connection attempts before delays occur. Added in MySQL 8.0.1. • connection_control_max_connection_delay : Maximum delay (milliseconds) for server response to failed connection attempts. Added in MySQL 8.0.1. • connection_control_min_connection_delay : Minimum delay (milliseconds) for server response to failed connection attempts. Added in MySQL 8.0.1. • create_admin_listener_thread : Whether to use dedicated listening thread for connections on administrative interface. Added in MySQL 8.0.14. • cte_max_recursion_depth : Common table expression maximum recursion depth. Added in MySQL 8.0.3. • ddl-rewriter : Whether to activate ddl_rewriter plugin. Added in MySQL 8.0.16. • default_collation_for_utf8mb4 : Default collation for utf8mb4 character set. Added in MySQL 8.0.11. • default_table_encryption : Default schema and tablespace encryption setting. Added in MySQL 8.0.16. 57