The Clone Plugin Defines the size of the intermediate buffer used when transferring data during a local cloning operation. The default value is 4 mebibytes (MiB). A larger buffer size may permit I/O device drivers to fetch data in parallel, which can improve cloning performance. SET_VAR  Hint Applies No Type Integer Default Value 4194304 Minimum Value 1048576 Maximum Value 268435456 Unit bytes Command-Line Format --clone-ddl-timeout Introduced 8.0.17 System Variable clone_ddl_timeout Scope Global Dynamic Yes SET_VAR  Hint Applies No Type Integer Default Value 300 Minimum Value 0 Maximum Value 2592000 Unit seconds Command-Line Format --clone-donor-timeout-after-network- failure Introduced 8.0.24 System Variable clone_donor_timeout_after_network_failure Scope Global Dynamic Yes SET_VAR  Hint Applies No Type Integer Default Value 5 Minimum Value 0 The time in seconds to wait for a backup lock when executing a cloning operation. This setting is applied on both the donor and recipient MySQL server instances. A cloning operation cannot run concurrently with DDL operations. A backup lock is required on the donor and recipient MySQL server instances. The cloning operation waits for current DDL operations to finish. Once backup locks are acquired, DDL operations must wait for the cloning operation to finish. A value of 0 means that no backup lock is to be taken for the cloning operation. In this case, the cloning operation fails with an error if a DDL operation is attempted concurrently. • clone_ddl_timeout • clone_donor_timeout_after_network_failure 1130