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https://dev.mysql.com/doc/refman/8.0/en/performance-schema-keyring-keys-table.html
MySQL Server supports a keyring that enables internal server components and plugins to securely store sensitive information for later retrieval. As of MySQL 8.0.16, the keyring_keys table exposes metadata for keys in the keyring. Key metadata ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-persisted-variables-table.html
The persisted_variables table provides an SQL interface to the mysqld-auto.cnf file that stores persisted global system variable settings, enabling the file contents to be inspected at runtime using SELECT statements. Variables are persisted using ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-pre-filtering.html
setup_objects controls whether the Performance Schema monitors particular table and stored program objects. Pre-filtering is done by the Performance Schema and has a global effect that applies to all users. Pre-filtering can be applied to either ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-quick-start.html
You can make performance_schema the default database so that references to its tables need not be qualified with the database name: mysql> USE performance_schema; Performance Schema tables are stored in the performance_schema database. This section ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-applier-configuration-table.html
Parameters stored in the table can be changed at runtime with the CHANGE REPLICATION SOURCE TO statement (from MySQL 8.0.23) or CHANGE MASTER TO statement (before MySQL 8.0.23). This table shows the configuration parameters that affect transactions ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-applier-status-table.html
(The DESIRED_DELAY value is stored in the replication_applier_configuration table.) See Section 19.4.11, “Delayed Replication” for more information. This table shows the current general transaction execution status on the replica. The table ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-connection-configuration-table.html
Parameters stored in the table can be changed at runtime with the CHANGE REPLICATION SOURCE TO statement (from MySQL 8.0.23) or CHANGE MASTER TO statement (before MySQL 8.0.23). This table shows the configuration parameters used by the replica for ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-setup-consumers-table.html
For detailed information about the effect of enabling different consumers, see Section 29.4.7, “Pre-Filtering by Consumer”. If you disable a consumer, the server does not spend time adding event information to it. The setup_consumers table has ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-setup-tables.html
These setup tables are available: setup_actors: How to initialize monitoring for new foreground threads setup_consumers: The destinations to which event information can be sent and stored setup_instruments: The classes of instrumented objects for ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-summary-tables.html
Summary tables provide aggregated information for terminated events over time. The tables in this group summarize event data in different ways. Each summary table has grouping columns that determine how to group the data to be aggregated, and ...