mysqladmin



MYSQLADMIN(1)                MySQL Database System               MYSQLADMIN(1)




NAME

       mysqladmin - client for administering a MySQL server


SYNOPSIS

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


DESCRIPTION

       mysqladmin is a client for performing administrative operations. You
       can use it to check the server’s configuration and current status,
       create and drop databases, and more.

       Invoke mysqladmin like this:

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

       mysqladmin supports the following commands:

       ·  create db_name

          Create a new database named db_name.

       ·  debug

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

       ·  drop db_name

          Delete the database named db_name and all its tables.

       ·  extended-status

          Display the server status variables and their values.

       ·  flush-hosts

          Flush all information in the host cache.

       ·  flush-logs

          Flush all logs.

       ·  flush-privileges

          Reload the grant tables (same as reload).

       ·  flush-status

          Clear status variables.

       ·  flush-tables

          Flush all tables.

       ·  flush-threads

          Flush the thread cache. (Added in MySQL 3.23.16.)

       ·  kill id,id,...

          Kill server threads.

       ·  old-password new-password

          This is like the password command but stores the password using the
          old (pre-4.1) password-hashing format. This command was added in
          MySQL 4.1.0. (See Section 4.9, “Password Hashing in MySQL 4.1”.)

       ·  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.

          If new-password 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"

       ·  ping

          Check whether the server is alive. The return status from mysqladmin
          is 0 if the server is running, 1 if it is not. Beginning with MySQL
          4.0.22, the status is 0 even in case of an error such as Access
          denied, because that means the server is running but disallowed 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-slave

          Start replication on a slave server. (Added in MySQL 3.23.16.)

       ·  status

          Display a short server status message.

       ·  stop-slave

          Stop replication on a slave server. (Added in MySQL 3.23.16.)

       ·  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 MySQL 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. See Section 8.5, “The Slow Query Log”.

       ·  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 code. This value
          is displayed only when MySQL has been compiled with
          --with-debug=full.

       ·  Maximum memory used

          The maximum amount of memory allocated directly by mysqld code. This
          value is displayed only when MySQL 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:

       ·  --help, -?

          Display a help message and exit.

       ·  --character-sets-dir=path

          The directory where character sets are installed. See Section 7.1,
          “The Character Set Used for Data and Sorting”.

       ·  --compress, -C

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

       ·  --count=num, -c num

          The number of iterations to make. This works only with --sleep (-i).

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

          Write a debugging log. The debug_options string often is
          ´d:t:o,file_name’. The default is ´d:t:o,/tmp/mysqladmin.trace’.

       ·  --default-character-set=charset

          Use charset as the default character set. See Section 7.1, “The
          Character Set Used for Data and Sorting”. Added in MySQL 4.1.9.

       ·  --force, -f

          Do not ask for confirmation for the drop database command. With
          multiple commands, continue even if an error occurs.

       ·  --host=host_name, -h host_name

          Connect to the MySQL server on the given host.

       ·  --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, you are prompted for
          one.

       ·  --port=port_num, -P port_num

          The TCP/IP port number to use for the connection.

       ·  --protocol={TCP | SOCKET | PIPE | MEMORY}

          The connection protocol to use. Added in MySQL 4.1.

       ·  --relative, -r

          Show the difference between the current and previous values when
          used with -i. Currently, this option works only with the
          extended-status command.

       ·  --silent, -s

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

       ·  --sleep=delay, -i delay

          Execute commands again and again, sleeping for delay seconds in
          between.

       ·  --socket=path, -S path

          The socket file to use for the connection.

       ·  --user=user_name, -u user_name

          The MySQL username to use when connecting to the server.

       ·  --verbose, -v

          Verbose mode. Print out more information on 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 an option 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
       options:

       ·  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 shutdown. The default
          value is 3600 (1 hour).

       It is also possible to set variables by using
       --set-variable=var_name=value or -O var_name=value syntax. However,
       this syntax is deprecated as of MySQL 4.0.


SEE ALSO

       isamchk(1), isamlog(1), msql2mysql(1), myisamchk(1), myisamlog(1),
       myisampack(1), mysql(1), mysql.server(1), mysql_config(1),
       mysql_fix_privilege_tables(1), mysql_zap(1), mysqlaccess(1),
       mysqlbinlog(1), mysqlcheck(1), mysqld(1), mysqld_multi(1),
       mysqld_safe(1), mysqldump(1), mysqlhotcopy(1), mysqlimport(1),
       mysqlshow(1), pack_isam(1), perror(1), replace(1), safe_mysqld(1)

       For more information, please refer to the MySQL Reference Manual, which
       may already be installed locally and which is also available online at
       http://dev.mysql.com/doc/.


AUTHOR

       MySQL AB (http://www.mysql.com/).  This software comes with no
       warranty.



MySQL 4.1                         11/30/2005                     MYSQLADMIN(1)

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