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https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-connection-status-table.html
This table shows the current status of the replication I/O thread that handles the replica's connection to the source. It contains values that change during the connection, whereas replication_connection_configuration contains values which define ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-group-member-stats-table.html
This table shows statistical information for MySQL Group Replication members. The replication_group_member_stats table has these columns: CHANNEL_NAME Name of the Group Replication channel. This has a different value for each member in the group.
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-group-members-table.html
This table shows network and status information for replication group members. The network addresses shown are the addresses used to connect clients to the group, and should not be confused with the member's internal group communication address ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-setup-consumers-table.html
For detailed information about the effect of enabling different consumers, see Section 25.4.7, “Pre-Filtering by Consumer”. If you disable a consumer, the server does not spend time adding event information to it.
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-socket-summary-tables.html
These socket summary tables aggregate timer and byte count information for socket operations: socket_summary_by_event_name: Aggregate timer and byte count statistics generated by the wait/io/socket/* instruments for all socket I/O operations, per ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-table-wait-summary-tables.html
The table_io_waits_summary_by_table table has these grouping columns to indicate how the table aggregates events: OBJECT_TYPE, OBJECT_SCHEMA, and OBJECT_NAME. In event rows, these locks are distinguished by the OPERATION column, which has one of ...
https://dev.mysql.com/doc/refman/5.7/en/thread-pool-information-schema-tables.html
The following sections describe the INFORMATION_SCHEMA tables associated with the thread pool plugin (see Section 5.5.3, “MySQL Enterprise Thread Pool”). The thread pool INFORMATION_SCHEMA tables are implemented by individual plugins and the ...
https://dev.mysql.com/doc/refman/5.7/en/source-configuration-options.html
Note It is not possible to compile without Performance Schema support. The CMake program provides a great deal of control over how you configure a MySQL source distribution. Typically, you do this using options on the CMake command line. For ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo.html
row *************************** Engine: PERFORMANCE_SCHEMA Support: YES Comment: Performance Schema Transactions: NO XA: NO Savepoints: NO *************************** 10. NDB Cluster also maintains tables in the INFORMATION_SCHEMA information ...
https://dev.mysql.com/doc/refman/5.7/en/glossary.html
Several InnoDB status variables, INFORMATION_SCHEMA tables, and performance_schema tables help to monitor the internal workings of the buffer pool. To check the frequency of this condition, query the INFORMATION_SCHEMA.INNODB_CMP table and check how ... These terms are commonly used in information about the MySQL database ...