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https://dev.mysql.com/doc/refman/9.7/en/change-replication-source-to.html
SOURCE_CONNECT_RETRY = interval Specifies the interval in seconds between the reconnection attempts that the replica makes after the connection to the source times out. If both the default settings are used, the replica waits 60 seconds between ...] ...
https://dev.mysql.com/doc/refman/9.7/en/faqs-replication.html
How do I know how late a replica is compared to the source? In other words, how do I know the date of the last statement replicated by the replica? Check the Seconds_Behind_Master column in the output from SHOW REPLICA | SLAVE STATUS. (This is why ... In the following section, we provide answers to questions that are most frequently asked about MySQL ...
https://dev.mysql.com/doc/refman/9.7/en/innodb-buffer-pool.html
Per second averages provided in InnoDB Standard Monitor output are based on the elapsed time since InnoDB Standard Monitor output was last printed. youngs/s The per second average of accesses to old pages in the buffer pool LRU list that have ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-disk-write-speed-aggregate-node.html
The disk_write_speed_aggregate_node table provides aggregated information per node about the speed of disk writes during LCP, backup, and restore operations.
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-params-ndbd.html
KeepAliveSendInterval: Time between keep-alive signals on links between data nodes, in milliseconds. MaxDiskWriteSpeed: Maximum number of bytes per second that can be written by LCP and backup when no restarts are ongoing. The listings in this ...
https://dev.mysql.com/doc/refman/9.7/en/replication-options-replica.html
log_slow_replica_statements Command-Line Format --log-slow-replica-statements[={OFF|ON}] System Variable log_slow_replica_statements Scope Global Dynamic Yes SET_VAR Hint Applies No Type Boolean Default Value OFF When the slow query log is enabled, ... This section explains the server options and system variables that apply to replica servers and contains the following: Startup Options for Replica Servers System Variables Used on Replica Servers Specify the options either on the command line or in an option ...
https://dev.mysql.com/doc/refman/9.7/en/audit-log-component-reference.html
audit_log.flush_interval_seconds Command-Line Format --audit-log.flush-interval-seconds=# System Variable audit_log.flush_interval_seconds Scope Global Dynamic No SET_VAR Hint Applies No Type Unsigned Long Default Value 0 Maximum Value (Windows) ...
https://dev.mysql.com/doc/refman/9.7/en/audit-log-reference.html
To check the status of the component: SHOW VARIABLES LIKE 'component_scheduler%'; +-----------------------------+-------+ | Variable_name | Value | +-----------------------------+-------| | component_scheduler.enabled | On | ... Important The ...
https://dev.mysql.com/doc/refman/9.7/en/built-in-function-reference.html
The following table lists each built-in (native) function and operator and provides a short description of each one. For a table listing functions that are loadable at runtime, see Section 14.2, “Loadable Function Reference”. ->> Return value ...
https://dev.mysql.com/doc/refman/9.7/en/clone-plugin-options-variables.html
clone_ddl_timeout Command-Line Format --clone-ddl-timeout System Variable clone_ddl_timeout Scope Global Dynamic Yes SET_VAR Hint Applies No Type Integer Default Value 300 Minimum Value 0 Maximum Value 2592000 Unit seconds The time in seconds that a ... This section describes the system variables that control operation of the clone ...