LOCAL DATA DIRECTORY [=] 'clone_dir';
| INSTANCE FROM 'user'@'host':port
IDENTIFIED BY 'password'
[DATA DIRECTORY [=] 'clone_dir']
[REQUIRE [NO] SSL]
CLONE LOCAL DATA
DIRECTORY syntax clones data from the local MySQL data
directory to a directory on the same server or node where the
MySQL server instance runs. The
directory is the full path of the local directory that data is
cloned to. An absolute path is required. The specified directory
must not exist, but the specified path must be an existent path.
The MySQL server requires the necessary write access to create the
specified directory. For more information, see
Section 220.127.116.11, “Cloning Data Locally”.
syntax clones data from a remote MySQL server instance (the donor)
and transfers it to the MySQL instance where the cloning operation
was initiated (the recipient).
is the clone user on the donor MySQL server instance.
hostnameaddress of the donor MySQL server instance. Internet Protocol version 6 (IPv6) address format is not supported. An alias to the IPv6 address can be used instead. An IPv4 address can be used as is.
portnumber of the donor MySQL server instance. (The X Protocol port specified by
mysqlx_portis not supported. Connecting to the donor MySQL server instance through MySQL Router is also not supported.)
IDENTIFIED BY 'specifies the password of the clone user on the donor MySQL server instance.
DATA DIRECTORY [=] 'is an optional clause used to specify a directory on the recipient for the data you are cloning. Use this option if you do not want to remove existing data in the recipient data directory. An absolute path is required, and the directory must not exist. The MySQL server must have the necessary write access to create the directory.
When the optional
DATA DIRECTORY [=] 'clause is not used, a cloning operation removes existing data in the recipient data directory, replaces it with the cloned data, and automatically restarts the server afterward.
[REQUIRE [NO] SSL]explicitly specifies whether an encrypted connection is to be used or not when transferring cloned data over the network. An error is returned if the explicit specification cannot be satisfied. If an SSL clause is not specified, clone attempts to establish an encrypted connection by default, falling back to an insecure connection if the secure connection attempt fails. A secure connection is required when cloning encrypted data regardless of whether this clause is specified. For more information, see Configuring an Encrypted Connection for Cloning.
For additional information about cloning data from a remote MySQL server instance, see Section 18.104.22.168, “Cloning Remote Data”.