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https://dev.mysql.com/doc/refman/8.0/en/information-schema-tp-thread-state-table.html
Note As of MySQL 8.0.14, the thread pool INFORMATION_SCHEMA tables are also available as Performance Schema tables. (See Section 29.12.16, “Performance Schema Thread Pool Tables”.) The INFORMATION_SCHEMA tables are deprecated; expect them to be ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-drop-table.html
Usage ndb_drop_table -c connection_string tbl_name -d db_name Options that can be used with ndb_drop_table are shown in the following table. --database, -d Command-Line Format --database=name Type String Default Value TEST_DB Name of the database in ...--connect-retries Command-Line Format --connect-retries=# Type Integer Default Value 12 Minimum Value 0 Maximum Value 12 Number of times to retry connection before giving ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-events-stages-history-table.html
The events_stages_history table contains the N most recent stage events that have ended per thread. Stage events are not added to the table until they have ended. When the table contains the maximum number of rows for a given thread, the oldest ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-events-statements-history-table.html
The events_statements_history table contains the N most recent statement events that have ended per thread. Statement events are not added to the table until they have ended. When the table contains the maximum number of rows for a given thread, ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-events-transactions-history-table.html
The events_transactions_history table contains the N most recent transaction events that have ended per thread. Transaction events are not added to the table until they have ended. When the table contains the maximum number of rows for a given ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-events-waits-history-table.html
The events_waits_history table contains the N most recent wait events that have ended per thread. Wait events are not added to the table until they have ended. When the table contains the maximum number of rows for a given thread, the oldest thread ...The Performance Schema autosizes the value of N during server ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-mutex-instances-table.html
The mutex_instances table lists all the mutexes seen by the Performance Schema while the server executes. The mutex_instances table has these columns: NAME The instrument name associated with the mutex. The mutex_instances table has these indexes: ...A mutex is a synchronization mechanism used in the code to enforce that only one thread at a given time can have access to some common ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-objects-summary-global-by-type-table.html
The Performance Schema maintains the objects_summary_global_by_type table for aggregating object wait events. row *************************** OBJECT_TYPE: TABLE OBJECT_SCHEMA: test OBJECT_NAME: t COUNT_STAR: 3 SUM_TIMER_WAIT: 263126976 ...Example ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-applier-status-table.html
This table shows the current general transaction execution status on the replica. The table provides information about general aspects of transaction applier status that are not specific to any thread involved. Thread-specific status information is ...There is always a default replication channel, and more replication channels can be ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-tp-thread-group-state-table.html
Note The Performance Schema table described here is available as of MySQL 8.0.14. Prior to MySQL 8.0.14, use the corresponding INFORMATION_SCHEMA table instead; see Section 28.5.2, “The INFORMATION_SCHEMA TP_THREAD_GROUP_STATE Table”. The ...