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https://dev.mysql.com/doc/refman/8.4/en/performance-schema-hosts-table.html
The hosts table contains a row for each host from which clients have connected to the MySQL server. For each host name, the table counts the current and total number of connections. For a description of how the Performance Schema maintains rows in ...To set the table size explicitly, set the performance_schema_hosts_size system variable at server ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-users-table.html
The users table contains a row for each user who has connected to the MySQL server. For each user name, the table counts the current and total number of connections. For a description of how the Performance Schema maintains rows in this table, ...
https://dev.mysql.com/doc/refman/8.4/en/start-replica.html
START REPLICA [thread_types] [until_option] [connection_options] [channel_option] thread_types: [thread_type [, thread_type] ... ] thread_type: IO_THREAD | SQL_THREAD until_option: UNTIL { {SQL_BEFORE_GTIDS | SQL_AFTER_GTIDS} = gtid_set | ...uuid: ...
https://dev.mysql.com/doc/refman/8.4/en/sys-schema-object-index.html
The following tables list sys schema objects and provide a short description of each one.
https://dev.mysql.com/doc/refman/8.4/en/x-plugin-sha2-cache-plugin.html
You can use X Plugin to authenticate against such accounts using non-SSL connections with SHA256_MEMORY authentication and SSL connections with PLAIN authentication. Before you can use non-SSL X Protocol connections to authenticate an account that ... X Plugin supports MySQL user accounts created with the caching_sha2_password authentication ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-information-commands.html
In addition, you can obtain information about mysql client commands that are independent of the MySQL server and thus are also available for use when connected to the MySQL Cluster Manager agent. You can also use most standard mysql client commands ... Online help is available in the MySQL Cluster Manager client for MySQL Cluster Manager client ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-using-cluster-setup-creating.html
Starting the MySQL Cluster Manager client and connect to the MySQL Cluster Manager agent. You can connect to an agent process running on any of the cluster hosts, using the mcm client on any computer that can establish a network connection to the ...
https://dev.mysql.com/doc/c-api/8.4/en/c-api-asynchronous-interface-usage.html
The asynchronous C API functions cover operations that might otherwise block when reading to or writing from the server connection: The initial connection operation, sending a query, reading the result, and so forth. Asynchronous Function ... This ...
https://dev.mysql.com/doc/extending-mysql/8.4/en/writing-audit-plugins.html
For example, for MYSQL_AUDIT_CONNECTION_CLASS (the class that covers connect and disconnect events), plugin_audit.h defines these symbols: typedef enum { /** occurs after authentication phase is completed. */ MYSQL_AUDIT_CONNECTION_CONNECT = 1 << 0, ... This section describes how to write a server-side audit plugin, using the example plugin found in the plugin/audit_null directory of MySQL source ...
https://dev.mysql.com/doc/ndb-operator/8.4/en/crd-ndbmysqldspec.html
connectionPoolSize (integer): (optional) This is the number of connections a single MySQL Server should use to connect to the MySQL Cluster data nodes. See the description of the mysqld --ndb-cluster-connection-pool option for further information.