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https://dev.mysql.com/doc/refman/8.0/en/performance-schema-instrument-filtering.html
The setup_instruments table lists the available instruments: mysql> SELECT NAME, ENABLED, TIMED FROM performance_schema.setup_instruments; +---------------------------------------------------+---------+-------+ | NAME | ENABLED | TIMED | ...| ...
https://dev.mysql.com/doc/refman/8.0/en/replication-administration-skip.html
Details of the error and the last successfully applied transaction are recorded in the Performance Schema table replication_applier_status_by_worker. This method of skipping transactions is not suitable when you have enabled GTID assignment on a ...
https://dev.mysql.com/doc/refman/8.0/en/replication-delayed.html
The replication_applier_configuration Performance Schema table contains the DESIRED_DELAY column which shows the delay configured using the SOURCE_DELAY | MASTER_DELAY option. The replication_applier_status Performance Schema table contains the ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-views.html
Views are filtered by their own name, not by the tables they refer to. This means that a view can be replicated to the replica even if the view contains a table that would normally be filtered out by replication-ignore-table rules. Care should ...
https://dev.mysql.com/doc/refman/8.0/en/rewriter-query-rewrite-plugin.html
The Rewriter plugin uses a database named query_rewrite containing a table named rewrite_rules. The table provides persistent storage for the rules that the plugin uses to decide whether to rewrite statements. Users communicate with the plugin by ...
https://dev.mysql.com/doc/refman/8.0/en/sys-schema-prerequisites.html
Before using the sys schema, the prerequisites described in this section must be satisfied. Because the sys schema provides an alternative means of accessing the Performance Schema, the Performance Schema must be enabled for the sys schema to work.
https://dev.mysql.com/doc/refman/8.0/en/unix-signal-response.html
SIGHUP causes the server to reload the grant tables and to flush tables, logs, the thread cache, and the host cache. On Unix and Unix-like systems, a process can be the recipient of signals sent to it by the root system account or the system ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-logging-configuration.html
If compression or encryption are enabled, the effective file name (the name actually used to create the log file) differs from the configured file name because it has additional suffixes: If compression is enabled, the plugin adds a suffix of .gz.
https://dev.mysql.com/doc/refman/8.0/en/charset-collation-implementations.html
MySQL implements several types of collations: Simple collations for 8-bit character sets This kind of collation is implemented using an array of 256 weights that defines a one-to-one mapping from character codes to weights. It is a case-insensitive ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-local.html
Note A local cloning operation does not support cloning of user-created tables or tablespaces that reside outside of the data directory. All other user-created InnoDB tables and tablespaces, the InnoDB system tablespace, redo logs, and undo ...The ...The BACKUP_ADMIN privilege is required to execute CLONE LOCAL DATA DIRECTORY ...