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Data
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Version: 9.1 (in Debian 10)
Developer / Owner: Oracle, MariaDB Corporation Ab and others.
Short description:
The mysqladmin linux command manual page and help. Mysqladmin is a client for performing administrative operations. It can be used to check the configuration and current status of the server, create and drop databases, and so on.
Man page output
man mysqladminMYSQLADMIN(1) MariaDB Database System MYSQLADMIN(1)
NAME
mysqladmin - client for administering a MariaB server
SYNOPSIS
mysqladmin [options] command [command-arg] [command [command-arg]] ...
DESCRIPTION
mysqladmin is a client for performing administrative operations. You can use it to check
the server´s configuration and current status, to create and drop databases, and more.
Invoke mysqladmin like this:
shell> mysqladmin [options] command [command-arg] [command [command-arg]] ...
mysqladmin supports the following commands. Some of the commands take an argument
following the command name.
• create db_name
Create a new database named db_name.
• debug
Tell the server to write debug information to the error log.
This also includes information about the Event Scheduler.
• drop db_name
Delete the database named db_name and all its tables.
• extended-status
Display the server status variables and their values.
• flush-all-statistics
Flush all statistics tables.
• flush-all-status
Flush all status and statistics.
• flush-binary-log
Flush the binary log.
• flush-client-statistics
Flush client statistics.
• flush-engine-log
Flush engine log.
• flush-error-log
Flush error log.
• flush-general-log
Flush general query log.
• flush-hosts
Flush all information in the host cache.
• flush-index-statistics
Flush index statistics.
• flush-logs
Flush all logs.
• flush-privileges
Reload the grant tables (same as reload).
• flush-relay-log
Flush relay log.
• flush-slow-log
Flush slow query log.
• flush-status
Clear status variables.
• flush-table-statistics
Flush table statistics.
• flush-tables
Flush all tables.
• flush-threads
Flush the thread cache.
• flush-user-resources
Flush user resources.
• kill id,id,...
Kill server threads. If multiple thread ID values are given, there must be no spaces
in the list.
• old-password new-password
This is like the password command but stores the password using the old (pre MySQL
4.1) password-hashing format.
• password new-password
Set a new password. This changes the password to new-password for the account that you
use with mysqladmin for connecting to the server. Thus, the next time you invoke
mysqladmin (or any other client program) using the same account, you will need to
specify the new password.
If the new-password value contains spaces or other characters that are special to your
command interpreter, you need to enclose it within quotes. On Windows, be sure to use
double quotes rather than single quotes; single quotes are not stripped from the
password, but rather are interpreted as part of the password. For example:
shell> mysqladmin password "my new password"
Caution
Do not use this command used if the server was started with the
--skip-grant-tables option. No password change will be applied. This is true even
if you precede the password command with flush-privileges on the same command line
to re-enable the grant tables because the flush operation occurs after you
connect. However, you can use mysqladmin flush-privileges to re-enable the grant
table and then use a separate mysqladmin password command to change the password.
• ping
Check whether the server is alive. The return status from mysqladmin is 0 if the
server is running, 1 if it is not. This is 0 even in case of an error such as Access
denied, because this means that the server is running but refused the connection,
which is different from the server not running.
• processlist
Show a list of active server threads. This is like the output of the SHOW PROCESSLIST
statement. If the --verbose option is given, the output is like that of SHOW FULL
PROCESSLIST.
• reload
Reload the grant tables.
• refresh
Flush all tables and close and open log files.
• shutdown
Stop the server.
• start-all-slaves
Start all slaves.
• start-slave
Start replication on a slave server.
• status
Display a short server status message.
• stop-all-slaves
Stop all slaves.
• stop-slave
Stop replication on a slave server.
• variables
Display the server system variables and their values.
• version
Display version information from the server.
All commands can be shortened to any unique prefix. For example:
shell> mysqladmin proc stat
+----+-------+-----------+----+---------+------+-------+------------------+
| Id | User | Host | db | Command | Time | State | Info |
+----+-------+-----------+----+---------+------+-------+------------------+
| 51 | monty | localhost | | Query | 0 | | show processlist |
+----+-------+-----------+----+---------+------+-------+------------------+
Uptime: 1473624 Threads: 1 Questions: 39487
Slow queries: 0 Opens: 541 Flush tables: 1
Open tables: 19 Queries per second avg: 0.0268
The mysqladmin status command result displays the following values:
• Uptime
The number of seconds the MariaDB server has been running.
• Threads
The number of active threads (clients).
• Questions
The number of questions (queries) from clients since the server was started.
• Slow queries
The number of queries that have taken more than long_query_time seconds.
• Opens
The number of tables the server has opened.
• Flush tables
The number of flush-*, refresh, and reload commands the server has executed.
• Open tables
The number of tables that currently are open.
• Memory in use
The amount of memory allocated directly by mysqld. This value is displayed only when
MariaDB has been compiled with --with-debug=full.
• Maximum memory used
The maximum amount of memory allocated directly by mysqld. This value is displayed
only when MariaDB has been compiled with --with-debug=full.
If you execute mysqladmin shutdown when connecting to a local server using a Unix socket
file, mysqladmin waits until the server´s process ID file has been removed, to ensure that
the server has stopped properly.
mysqladmin supports the following options, which can be specified on the command line or
in the [mysqladmin] and [client] option file groups.
• --help, -?
Display help and exit.
• --character-sets-dir=path
The directory where character sets are installed.
• --compress, -C
Compress all information sent between the client and the server if both support
compression.
• --connect-timeout=timeout
Equivalent to --connect_timeout, see the end of this section.
• --count=N, -c N
The number of iterations to make for repeated command execution if the --sleep option
is given.
• --debug[=debug_options], -# [debug_options]
Write a debugging log. A typical debug_options string is ´d:t:o,file_name´. The
default is ´d:t:o,/tmp/mysqladmin.trace´.
• --debug-check
Check memory and open file usage at exit..
• --debug-info
Print debugging information and memory and CPU usage statistics when the program
exits.
• --default-auth
Default authentication client-side plugin to use.
• --default-character-set=charset_name
Use charset_name as the default character set.
• --defaults-extra-file=filename
Set filename as the file to read default options from after the global defaults files
has been read. Must be given as first option.
• --defaults-file=filename
Set filename as the file to read default options from, override global defaults files.
Must be given as first option.
• --force, -f
Do not ask for confirmation for the drop db_name command. With multiple commands,
continue even if an error occurs.
• --host=host_name, -h host_name
Connect to the MariaDB server on the given host.
• --local, -l
Suppress the SQL command(s) from being written to the binary log by using FLUSH LOCAL
or enabling sql_log_bin=0 for the session.
• --no-beep, -b
Suppress the warning beep that is emitted by default for errors such as a failure to
connect to the server.
• --no-defaults
Do not read default options from any option file. This must be given as the first
argument.
• --password[=password], -p[password]
The password to use when connecting to the server. If you use the short option form
(-p), you cannot have a space between the option and the password. If you omit the
password value following the --password or -p option on the command line, mysqladmin
prompts for one.
Specifying a password on the command line should be considered insecure.
• --pipe, -W
On Windows, connect to the server via a named pipe. This option applies only if the
server supports named-pipe connections.
• --port=port_num, -P port_num
The TCP/IP port number to use for the connection or 0 for default to, in order of
preference, my.cnf, $MYSQL_TCP_PORT, /etc/services, built-in default (3306).
• --print-defaults
Print the program argument list and exit. This must be given as the first argument.
• --protocol={TCP|SOCKET|PIPE|MEMORY}
The connection protocol to use for connecting to the server. It is useful when the
other connection parameters normally would cause a protocol to be used other than the
one you want.
• --relative, -r
Show the difference between the current and previous values when used with the --sleep
option. Currently, this option works only with the extended-status command.
• --shutdown-timeouttimeout
Equivalent of --shutdown_timeout, see the end of this section.
• --silent, -s
Exit silently if a connection to the server cannot be established.
• --sleep=delay, -i delay
Execute commands repeatedly, sleeping for delay seconds in between. The --count option
determines the number of iterations. If --count is not given, mysqladmin executes
commands indefinitely until interrupted.
• --socket=path, -S path
For connections to localhost, the Unix socket file to use, or, on Windows, the name of
the named pipe to use.
• --ssl
Enable SSL for connection (automatically enabled with other flags). Disable with
--skip-ssl.
• --ssl-ca=name
CA file in PEM format (check OpenSSL docs, implies --ssl).
• --ssl-capath=name
CA directory (check OpenSSL docs, implies --ssl).
• --ssl-cert=name
X509 cert in PEM format (check OpenSSL docs, implies --ssl).
• --ssl-cipher=name
SSL cipher to use (check OpenSSL docs, implies --ssl).
• --ssl-key=name
X509 key in PEM format (check OpenSSL docs, implies --ssl).
• --ssl-crl=name
Certificate revocation list (check OpenSSL docs, implies --ssl).
• --ssl-crlpath=name
Certificate revocation list path (check OpenSSL docs, implies --ssl).
• --ssl-verify-server-cert
Verify server's "Common Name" in its cert against hostname used when connecting. This
option is disabled by default.
• --user=user_name, -u user_name
The MariaDB user name to use when connecting to the server.
• --verbose, -v
Verbose mode. Print more information about what the program does.
• --version, -V
Display version information and exit.
• --vertical, -E
Print output vertically. This is similar to --relative, but prints output vertically.
• --wait[=count], -w[count]
If the connection cannot be established, wait and retry instead of aborting. If a
count value is given, it indicates the number of times to retry. The default is one
time.
You can also set the following variables by using --var_name=value
• connect_timeout
The maximum number of seconds before connection timeout. The default value is 43200
(12 hours).
• shutdown_timeout
The maximum number of seconds to wait for server shutdown. The default value is 3600
(1 hour).
COPYRIGHT
Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc., 2010-2015 MariaDB
Foundation
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 02110-1335 USA or see http://www.gnu.org/licenses/.
SEE ALSO
For more information, please refer to the MariaDB Knowledge Base, available online at
https://mariadb.com/kb/
AUTHOR
MariaDB Foundation (http://www.mariadb.org/).
MariaDB 10.3 28 December 2017 MYSQLADMIN(1)
Help output
mysqladmin --helpmysqladmin Ver 9.1 Distrib 10.3.27-MariaDB, for debian-linux-gnu on x86_64
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Administration program for the mysqld daemon.
Usage: mysqladmin [OPTIONS] command command....
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf ~/.my.cnf
The following groups are read: mysqladmin client client-server client-mariadb
The following options may be given as the first argument:
--print-defaults Print the program argument list and exit.
--no-defaults Don't read default options from any option file.
The following specify which files/extra groups are read (specified before remaining options):
--defaults-file=# Only read default options from the given file #.
--defaults-extra-file=# Read this file after the global files are read.
--defaults-group-suffix=# Additionally read default groups with # appended as a suffix.
-c, --count=# Number of iterations to make. This works with -i
(--sleep) only.
--debug-check Check memory and open file usage at exit.
--debug-info Print some debug info at exit.
-f, --force Don't ask for confirmation on drop database; with
multiple commands, continue even if an error occurs.
-C, --compress Use compression in server/client protocol.
--character-sets-dir=name
Directory for character set files.
--default-character-set=name
Set the default character set.
-?, --help Display this help and exit.
-h, --host=name Connect to host.
-l, --local Local command, don't write to binlog.
-b, --no-beep Turn off beep on error.
-p, --password[=name]
Password to use when connecting to server. If password is
not given it's asked from the tty.
-P, --port=# Port number to use for connection or 0 for default to, in
order of preference, my.cnf, $MYSQL_TCP_PORT,
/etc/services, built-in default (3306).
--protocol=name The protocol to use for connection (tcp, socket, pipe,
memory).
-r, --relative Show difference between current and previous values when
used with -i. Currently only works with extended-status.
-s, --silent Silently exit if one can't connect to server.
-S, --socket=name The socket file to use for connection.
-i, --sleep=# Execute commands repeatedly with a sleep between.
--ssl Enable SSL for connection (automatically enabled with
other flags).
--ssl-ca=name CA file in PEM format (check OpenSSL docs, implies
--ssl).
--ssl-capath=name CA directory (check OpenSSL docs, implies --ssl).
--ssl-cert=name X509 cert in PEM format (implies --ssl).
--ssl-cipher=name SSL cipher to use (implies --ssl).
--ssl-key=name X509 key in PEM format (implies --ssl).
--ssl-crl=name Certificate revocation list (implies --ssl).
--ssl-crlpath=name Certificate revocation list path (implies --ssl).
--ssl-verify-server-cert
Verify server's "Common Name" in its cert against
hostname used when connecting. This option is disabled by
default.
-u, --user=name User for login if not current user.
-v, --verbose Write more information.
-V, --version Output version information and exit.
-E, --vertical Print output vertically. Is similar to --relative, but
prints output vertically.
-w, --wait[=#] Wait and retry if connection is down.
--connect-timeout=#
--shutdown-timeout=#
--plugin-dir=name Directory for client-side plugins.
--default-auth=name Default authentication client-side plugin to use.
Variables (--variable-name=value)
and boolean options {FALSE|TRUE} Value (after reading options)
--------------------------------- ----------------------------------------
count 0
debug-check FALSE
debug-info FALSE
force FALSE
compress FALSE
character-sets-dir (No default value)
default-character-set utf8mb4
host (No default value)
local FALSE
no-beep FALSE
port 0
relative FALSE
socket /var/run/mysqld/mysqld.sock
sleep 0
ssl FALSE
ssl-ca (No default value)
ssl-capath (No default value)
ssl-cert (No default value)
ssl-cipher (No default value)
ssl-key (No default value)
ssl-crl (No default value)
ssl-crlpath (No default value)
ssl-verify-server-cert FALSE
user (No default value)
verbose FALSE
vertical FALSE
connect-timeout 43200
shutdown-timeout 3600
plugin-dir (No default value)
default-auth (No default value)
Where command is a one or more of: (Commands may be shortened)
create databasename Create a new database
debug Instruct server to write debug information to log
drop databasename Delete a database and all its tables
extended-status Gives an extended status message from the server
flush-all-statistics Flush all statistics tables
flush-all-status Flush status and statistics
flush-client-statistics Flush client statistics
flush-hosts Flush all cached hosts
flush-index-statistics Flush index statistics
flush-logs Flush all logs
flush-privileges Reload grant tables (same as reload)
flush-binary-log Flush binary log
flush-engine-log Flush engine log(s)
flush-error-log Flush error log
flush-general-log Flush general log
flush-relay-log Flush relay log
flush-slow-log Flush slow query log
flush-status Clear status variables
flush-table-statistics Clear table statistics
flush-tables Flush all tables
flush-threads Flush the thread cache
flush-user-statistics Flush user statistics
flush-user-resources Flush user resources
kill id,id,... Kill mysql threads
password [new-password] Change old password to new-password in current format
old-password [new-password] Change old password to new-password in old format
ping Check if mysqld is alive
processlist Show list of active threads in server
reload Reload grant tables
refresh Flush all tables and close and open logfiles
shutdown Take server down
status Gives a short status message from the server
start-slave Start slave
stop-slave Stop slave
variables Prints variables available
version Get version info from server
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