SHUTDOWN

MariaDB starting with 10.0.4

The SHUTDOWN command is a new feature in MariaDB 10.0.4

Syntax

SHUTDOWN [WAIT FOR ALL SLAVES]

Description

The SHUTDOWN command shuts the server down.

WAIT FOR ALL SLAVES

MariaDB starting with 10.4.4

The WAIT FOR ALL SLAVES option was first added in MariaDB 10.4.4.

When a master server is shutdown and it goes through the normal shutdown process, the master kills client threads in random order. By default, the master also considers its binary log dump threads to be regular client threads. As a consequence, the binary log dump threads can be killed while client threads still exist, and this means that data can be written on the master during a normal shutdown that won't be replicated. This is true even if semi-synchronous replication is being used.

In MariaDB 10.4 and later, this problem can be solved by shutting down the server with the SHUTDOWN command and by providing the WAIT FOR ALL SLAVES option to the command. For example:

SHUTDOWN WAIT FOR ALL SLAVES;

When the WAIT FOR ALL SLAVES option is provided, the server only kills its binary log dump threads after all client threads have been killed, and it only completes the shutdown after the last binary log has been sent to all connected slaves.

See Replication Threads: Binary Log Dump Threads and the Shutdown Process for more information.

Required Permissions

One must have a SHUTDOWN privilege (see GRANT) to use this command. It is the same privilege one needs to use the mysqladmin shutdown command.

Shutdown for Upgrades

If you are doing a shutdown to migrate to another major version of MariaDB, please ensure that the innodb_fast_shutdown variable is not 2 (fast crash shutdown). The default of this variable is 1.

Example

The following example shows how to create an event which turns off the server at a certain time:

CREATE EVENT `test`.`shutd`
    ON SCHEDULE
        EVERY 1 DAY
        STARTS '2014-01-01 20:00:00'
    COMMENT 'Shutdown Maria when the office is closed'
DO BEGIN
    SHUTDOWN;
END;

Other Ways to Stop mysqld

You can use the mysqladmin shutdown command to take down mysqld cleanly.

You can also use the system kill command on Unix with signal SIGTERM (15)

kill -SIGTERM pid-of-mysqld-process

You can find the process number of the server process in the file that ends with .pid in your data directory.

The above is identical to mysqladmin shutdown.

On windows you should use:

NET STOP MySQL

See Also

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