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https://dev.mysql.com/doc/refman/8.4/en/shutdown.html
Because status variables are initialized for each server startup and do not persist across restarts, Com_shutdown normally has a value of zero, but can be nonzero if SHUTDOWN statements were executed but failed. Another way to stop the server is to ...SHUTDOWN provides an SQL-level interface to the same functionality available using the mysqladmin shutdown ...
https://dev.mysql.com/doc/refman/8.4/en/start-replica.html
IO_THREAD starts the replication receiver thread, which reads events from the source server and stores them in the relay log. The replication channels for Group Replication (group_replication_applier and group_replication_recovery) are managed ...
https://dev.mysql.com/doc/refman/8.4/en/structured-system-variables.html
A structured variable differs from a regular system variable in two respects: Its value is a structure with components that specify server parameters considered to be closely related. Each one has a different name and refers to a different resource ...There might be several instances of a given type of structured ...
https://dev.mysql.com/doc/refman/8.4/en/system-variable-privileges.html
(For information about dynamic variables, see Section 7.1.9.2, “Dynamic System Variables”.) For certain global system variables, SET can be used to persist their value to the mysqld-auto.cnf file in the data directory, to affect server operation ...This section describes the privileges required for operations that assign values to system variables at ...
https://dev.mysql.com/doc/refman/8.4/en/thread-commands.html
Daemon This thread is internal to the server, not a thread that services a client connection. Refresh The thread is flushing table, logs, or caches, or resetting status variable or replication server information. A thread can have any of the ...
https://dev.mysql.com/doc/refman/8.4/en/thread-pool-installation.html
To be usable by the server, the plugin library file must be located in the MySQL plugin directory (the directory named by the plugin_dir system variable). If necessary, configure the plugin directory location by setting the value of plugin_dir at ...
https://dev.mysql.com/doc/refman/8.4/en/thread-pool-tuning.html
Of chief importance is the number of thread groups in the thread pool, which can be set on server startup using the --thread-pool-size option; this cannot be changed at runtime. If all calls blocking the MySQL Server were reported to the thread ...
https://dev.mysql.com/doc/refman/8.4/en/upgrading-from-previous-series.html
Incompatible Changes in MySQL 8.4 Changed Server Defaults In addition, you can consult the resources listed here: Section 1.4, “What Is New in MySQL 8.4 since MySQL 8.0” MySQL 8.4 Release Notes Incompatible Changes in MySQL 8.4 This section ...
https://dev.mysql.com/doc/refman/8.4/en/version-tokens-elements.html
Version Tokens is based on a plugin library that implements these elements: A server-side plugin named version_tokens holds the list of version tokens associated with the server and subscribes to notifications for statement execution events. The ...
https://dev.mysql.com/doc/refman/8.4/en/version-tokens.html
MySQL includes Version Tokens, a feature that enables creation of and synchronization around server tokens that applications can use to prevent accessing incorrect or out-of-date data. Version token lists are established per server (for example, to ...The Version Tokens interface has these characteristics: Version tokens are pairs consisting of a name that serves as a key or identifier, plus a ...