shell> mysqlhotcopy db_name [/path/to/new_directory]
shell> mysqlhotcopy db_name_1 ... db_name_n /path/to/new_directory
Back up tables in the given database that match a regular expression:
shell> mysqlhotcopy db_name./regex/
The regular expression for the table name can be negated by prefixing it with a tilde ("~"):
shell> mysqlhotcopy db_name./~regex/
mysqlhotcopy supports the following options:
Table 4.11. mysqlhotcopy Option Reference
|--addtodest||addtodest||Do not rename target directory (if it exists); merely add files to it||
|--host=host_name||host||Connect to the MySQL server on the given host||
|--keepold||keepold||Do not delete previous (renamed) target when done||
|--noindices||noindices||Do not include full index files in the backup||
|--password[=password]||password||The password to use when connecting to the server||
|--port=port_num||port||The TCP/IP port number to use for the connection||
|--quiet||quiet||Be silent except for errors||
|--allowold||allowold||Do not abort if a target exists; rename it by adding an _old suffix||
|--regexp||regexp||Copy all databases with names that match the given regular expression||
|--resetmaster||resetmaster||Reset the binary log after locking all the tables||
|--resetslave||resetslave||Reset the master.info file after locking all the tables||
|--socket=path||socket||For connections to localhost||
|--tmpdir=path||tmpdir||The temporary directory||
|--user=user_name,||user||The MySQL username to use when connecting to the server||
|--version||Display version information and exit||
|--checkpoint=db_name.tbl_name||checkpoint||Insert checkpoint entries||
|--chroot=path||chroot||Base directory of the chroot jail in which mysqld operates||
|--debug||debug||Write a debugging log||
|--dryrun||dryrun||Report actions without performing them||
|--flushlogs||flushlogs||Flush logs after all tables are locked||
|--help||Display help message and exit||
Display a help message and exit.
Do not rename target directory (if it exists); merely add files to it.
Do not abort if a target exists; rename it by adding an _old suffix.
Insert checkpoint entries into the specified database db_name and table tbl_name.
Base directory of the chroot jail in which mysqld operates. The path value should match that of the --chroot option given to mysqld.
Enable debug output.
Report actions without performing them.
Flush logs after all tables are locked.
The hostname of the local host to use for making a TCP/IP connection to the local server. By default, the connection is made to localhost using a Unix socket file.
Do not delete previous (renamed) target when done.
The method for copying files (cp or scp).
Do not include full index files in the backup. This makes the backup smaller and faster. The indexes for reloaded tables can be reconstructed later with myisamchk -rq.
The password to use when connecting to the server. Note that the password value is not optional for this option, unlike for other MySQL programs. You can use an option file to avoid giving the password on the command line.
Specifying a password on the command line should be considered insecure. See Section 5.6, "Keeping Your Password Secure".
The TCP/IP port number to use when connecting to the local server.
Be silent except for errors.
Record master and slave status in the specified database db_name and table tbl_name.
Copy all databases with names that match the given regular expression.
Reset the binary log after locking all the tables.
Reset the master.info file after locking all the tables.
The Unix socket file to use for the connection.
The suffix for names of copied databases.
The temporary directory. The default is /tmp.
The MySQL username to use when connecting to the server.
mysqlhotcopy reads the [client] and [mysqlhotcopy] option groups from option files.
To execute mysqlhotcopy, you must have access to the files for the tables that you are backing up, the SELECT privilege for those tables, the RELOAD privilege (to be able to execute FLUSH TABLES), and the LOCK TABLES privilege (to be able to lock the tables).
Use perldoc for additional mysqlhotcopy documentation, including information about the structure of the tables needed for the --checkpoint and --record_log_pos options:
shell> perldoc mysqlhotcopy
Copyright 2007-2008 MySQL AB
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