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MARIADB-ADMIN(1) MariaDB Database System MARIADB-ADMIN(1) NAME mariadb-admin - client for administering a MariaDB server (mariadb- admin is now a symlink to mariadb-admin) SYNOPSIS mariadb-admin [options] command [command-arg] [command [command-arg]] ... DESCRIPTION mariadb-admin 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 mariadb-admin like this: shell> mariadb-admin [options] command [command-arg] [command [command-arg]] ... mariadb-admin 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-ssl Flush SSL certificates. • 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 mariadb-admin for connecting to the server. Thus, the next time you invoke mariadb-admin (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> mariadb-admin 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 mariadb-admin flush-privileges to re-enable the grant table and then use a separate mariadb-admin password command to change the password. • ping Check whether the server is alive. The return status from mariadb- admin 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> mariadb-admin 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 mariadb-admin 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 log_slow_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 mariadbd. 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 mariadbd. This value is displayed only when MariaDB has been compiled with --with-debug=full. If you execute mariadb-admin shutdown when connecting to a local server using a Unix socket file, mariadb-admin waits until the server's process ID file has been removed, to ensure that the server has stopped properly. mariadb-admin supports the following options, which can be specified on the command line or in the [mariadb-admin] 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/mariadb-admin.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, mariadb-admin 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). Forces --protocol=tcp when specified on the command line without other connection properties. • --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, mariadb-admin 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. Forces --protocol=socket when specified on the command line without other connection properties; on Windows, forces --protocol=pipe. • --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. • --tls-version=name, Accepts a comma-separated list of TLS protocol versions. A TLS protocol version will only be enabled if it is present in this list. All other TLS protocol versions will not be permitted. • --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. • --wait-for-all-slaves Wait for the last binlog event to be sent to all connected slaves before shutting down. This option is off by default. 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., 2010-2024 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 11.4 3 September 2024 MARIADB-ADMIN(1)
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