MAN page from Other MySQL-client-community-5.0.96-1.sles10.x86_64.rpm


Section: MySQL Database System (1)
Updated: 03/02/2012


mysqladmin - client for administering a MySQL server 


mysqladmin [options] command [command-options] [command [command-options]] ...



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.

Invokemysqladminlike this:

shell> mysqladmin [options] command [command-arg] [command [command-arg]] ...

mysqladminsupports the following commands. Some of the commands take an argument following the command name.

*create db_name

Create a new database nameddb_name.


Tell the server to write debug information to the error log.

*drop db_name

Delete the database nameddb_nameand all its tables.


Display the server status variables and their values.


Flush all information in the host cache.


Flush all logs.


Reload the grant tables (same asreload).


Clear status variables.


Flush all tables.


Flush the thread cache.

*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 thepasswordcommand but stores the password using the old (pre-4.1) password-hashing format. (SeeSection, lqPassword Hashing in MySQLrq.)

*password new-password

Set a new password. This changes the password tonew-passwordfor the account that you use withmysqladminfor connecting to the server. Thus, the next time you invokemysqladmin(or any other client program) using the same account, you will need to specify the new password.

If thenew-passwordvalue contains spaces or other characters that are special to your command interpreter, you need to enclose it within quotation marks. On Windows, be sure to use double quotation marks rather than single quotation marks; single quotation marks are not stripped from the password, but rather are interpreted as part of the password. For example:

shell> mysqladmin password "my new password"

Do not use this command used if the server was started with the--skip-grant-tablesoption. No password change will be applied. This is true even if you precede thepasswordcommand withflush-privilegeson the same command line to re-enable the grant tables because the flush operation occurs after you connect. However, you can usemysqladmin flush-privilegesto re-enable the grant table and then use a separatemysqladmin passwordcommand to change the password.


Check whether the server is available. The return status frommysqladminis 0 if the server is running, 1 if it is not. This is 0 even in case of an error such asAccess denied, because this means that the server is running but refused the connection, which is different from the server not running.


Show a list of active server threads. This is like the output of theSHOW PROCESSLISTstatement. If the--verboseoption is given, the output is like that ofSHOW FULL PROCESSLIST. (SeeSection, lqSHOW PROCESSLIST Syntaxrq.)


Reload the grant tables.


Flush all tables and close and open log files.


Stop the server.


Start replication on a slave server.


Display a short server status message.


Stop replication on a slave server.


Display the server system variables and their values.


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: 39487Slow queries: 0  Opens: 541  Flush tables: 1Open tables: 19  Queries per second avg: 0.0268

Themysqladmin statuscommand result displays the following values:


The number of seconds the MySQL server has been running.


The number of active threads (clients).


The number of questions (queries) from clients since the server was started.

*Slow queries

The number of queries that have taken more thanlong_query_timeseconds. SeeSection 5.2.4, lqThe Slow Query Logrq.


The number of tables the server has opened.

*Flush tables

The number offlush-*,refresh, andreloadcommands the server has executed.

*Open tables

The number of tables that currently are open.

*Memory in use

The amount of memory allocated directly bymysqld. This value is displayed only when MySQL has been compiled with--with-debug=full.

*Maximum memory used

The maximum amount of memory allocated directly bymysqld. This value is displayed only when MySQL has been compiled with--with-debug=full.

If you executemysqladmin shutdownwhen connecting to a local server using a Unix socket file,mysqladminwaits until the server's process ID file has been removed, to ensure that the server has stopped properly.

mysqladminsupports the following options, which can be specified on the command line or in the[mysqladmin]and[client]groups of an option file.mysqladminalso supports the options for processing option files described atSection, lqCommand-Line Options that Affect Option-File Handlingrq.


Display a help message and exit.


The directory where character sets are installed. SeeSection 9.5, lqCharacter Set Configurationrq.


Compress all information sent between the client and the server if both support compression.

*--count=N,-c N

The number of iterations to make for repeated command execution if the--sleepoption is given.

*--debug[=debug_options],-# [debug_options]

Write a debugging log. A typicaldebug_optionsstring is'd:t:o,file_name'. The default is'd:t:o,/tmp/mysqladmin.trace'.


Usecharset_nameas the default character set. SeeSection 9.5, lqCharacter Set Configurationrq.


Do not ask for confirmation for thedrop db_namecommand. With multiple commands, continue even if an error occurs.

*--host=host_name,-h host_name

Connect to the MySQL server on the given host.


The password to use when connecting to the server. If you use the short option form (-p), youcannothave a space between the option and the password. If you omit thepasswordvalue following the--passwordor-poption on the command line,mysqladminprompts for one.

Specifying a password on the command line should be considered insecure. SeeSection, lqEnd-User Guidelines for Password Securityrq. You can use an option file to avoid giving the password on the command line.


On Windows, connect to the server using 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.


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. For details on the permissible values, seeSection 4.2.2, lqConnecting to the MySQL Serverrq.


Show the difference between the current and previous values when used with the--sleepoption. This option works only with theextended-statuscommand.


Exit silently if a connection to the server cannot be established.

*--sleep=delay,-i delay

Execute commands repeatedly, sleeping fordelayseconds in between. The--countoption determines the number of iterations. If--countis not given,mysqladminexecutes commands indefinitely until interrupted.

*--socket=path,-S path

For connections tolocalhost, the Unix socket file to use, or, on Windows, the name of the named pipe to use.


Options that begin with--sslspecify whether to connect to the server using SSL and indicate where to find SSL keys and certificates. SeeSection, lqSSL Command Optionsrq.

*--user=user_name,-u user_name

The MySQL user name to use when connecting to the server.


Verbose mode. Print more information about what the program does.


Display version information and exit.


Print output vertically. This is similar to--relative, but prints output vertically.


If the connection cannot be established, wait and retry instead of aborting. If acountvalue 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=valueThe--set-variableformat is deprecated. syntax:


The maximum number of seconds before connection timeout. The default value is 43200 (12 hours).


The maximum number of seconds to wait for server shutdown. The default value is 3600 (1 hour).

It is also possible to set variables by using--var_name=value. The--set-variableformat is deprecated. 


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