mysqlhotcopy is a Perl script that was originally written and
contributed by Tim Bunce. It uses FLUSH TABLES, LOCK TABLES, and cp or
scp to make a database backup. It is a fast way to make a backup of the
database or single tables, but it can be run only on the same machine
where the database directories are located. mysqlhotcopy works only
for backing up MyISAM and ARCHIVE tables. It runs on Unix.
To use mysqlhotcopy, you must have read 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).
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, which can be specified on
the command line or in the [mysqlhotcopy] and [client] groups of an
option file. For information about option files used by MySQL programs,
see Section 4.2.6, "Using Option Files".
o --help, -?
Display a help message and exit.
Do not rename target directory (if it exists); merely add files to
Do not abort if a target exists; rename it by adding an _old
Insert checkpoint entries into the specified database db_name and
Report actions without performing them.
Flush logs after all tables are locked.
o --host=host_name, -h host_name
The host name 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). The default is cp.
Do not include full index files for MyISAM tables in the backup.
This makes the backup smaller and faster. The indexes for reloaded
tables can be reconstructed later with myisamchk -rq.
o --password=password, -ppassword
The password to use when connecting to the server. The password
value is not optional for this option, unlike for other MySQL
Specifying a password on the command line should be considered
insecure. See Section 22.214.171.124, "End-User Guidelines for Password
Security". You can use an option file to avoid giving the password
on the command line.
o --port=port_num, -P port_num
The TCP/IP port number to use when connecting to the local server.
As of MySQL 5.5.3, mysqlhotcopy uses FLUSH TABLES tbl_list WITH
READ LOCK to flush and lock tables. Use the --old_server option if
the server is older than 5.5.3, which is when that statement was
introduced. This option was added in MySQL 5.5.3.
o --quiet, -q
Be silent except for errors.
Reset the master.info file after locking all the tables.
o --socket=path, -S path
The Unix socket file to use for connections to localhost.
The suffix to use for names of copied databases.
The temporary directory. The default is /tmp.
o --user=user_name, -u user_name
The MySQL user name to use when connecting to the server.
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 (C) 1997, 2018, Oracle and/or its affiliates. All rights
This documentation is free software; you can redistribute it and/or
modify it only under the terms of the GNU General Public License as
published by the Free Software Foundation; version 2 of the License.
This documentation is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License along
with the program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see
For more information, please refer to the MySQL Reference Manual, which
may already be installed locally and which is also available online at
Oracle Corporation (http://dev.mysql.com/).
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