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https://dev.mysql.com/doc/refman/8.4/en/firewall-elements.html
MySQL Enterprise Firewall is based on a plugin library that includes these elements: A server-side plugin named MYSQL_FIREWALL examines SQL statements before they execute and, based on the registered firewall profiles, renders a decision whether to ...Tables in the firewall database provide backing storage of firewall data for persistence of profiles across server ...Stored procedures perform tasks such as registering firewall ...
https://dev.mysql.com/doc/refman/8.4/en/handler-scope.html
When the server finds one or more applicable handlers at a given scope, it chooses among them based on condition precedence: A MySQL error code handler takes precedence over an SQLSTATE value handler. END block is in scope only for the SQL ... A ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-limitations-limits.html
This number includes all SQL nodes (MySQL Servers), API nodes (applications accessing the cluster other than MySQL servers), data nodes, and management servers. In this section, we list limits found in NDB Cluster that either differ from limits ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-cluster-operations.html
(Currently, the MySQL Server does not expose the NDB API transaction ID of an ongoing transaction.) The operation_type column can take any one of the values READ, READ-SH, READ-EX, INSERT, UPDATE, DELETE, WRITE, UNLOCK, REFRESH, SCAN, SCAN-SH, ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-cluster-transactions.html
(Currently, the MySQL Server does not expose the NDB API transaction ID of an ongoing transaction.) block_instance refers to an instance of a kernel block. The cluster_transactions table shows information about all ongoing transactions in an NDB ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-mta.html
The content of ANONYMOUS_GTID events, including sequence_number and last_committed (and thus the transaction dependencies), can be seen using mysqlbinlog. MTA Configuration: Source If set on the source mysqld, replica_parallel_type must be ...To use ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-single-user-mode.html
Single user mode enables the database administrator to restrict access to the database system to a single API node, such as a MySQL server (SQL node) or an instance of ndb_restore. API nodes—such as MySQL Servers—waiting for a connection (that ...Note When the preceding command is invoked, all transactions running on the designated node are aborted, the connection is closed, and the server must be ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-status-variable-tables.html
The MySQL server maintains many status variables that provide information about its operation (see Section 7.1.10, “Server Status Variables”). For example: SELECT EVENT_NAME, COUNT_STAR FROM ...Status variable information is available in these ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-table-reference.html
The following table summarizes all available Performance Schema tables. For greater detail, see the individual table descriptions. Table 29.1 Performance Schema Tables Table Name Description accounts Connection statistics per client account ...
https://dev.mysql.com/doc/refman/8.4/en/plugin-services.html
MySQL server plugins have access to server “plugin services.” The plugin services interface complements the plugin API by exposing server functionality that plugins can call. For developer information about writing plugin services, see MySQL ...