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https://dev.mysql.com/doc/refman/8.4/en/performance-schema-threads-table.html
The threads table contains a row for each server thread. Each row contains information about a thread and indicates whether monitoring and historical event logging are enabled for it: mysql> SELECT * FROM performance_schema.threads\G ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-tp-thread-group-state-table.html
The tp_thread_group_state table has one row per thread group in the thread pool. Each row provides information about the current state of a group. The tp_thread_group_state table has these columns: TP_GROUP_ID The thread group ID. There is at most ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-tp-thread-group-stats-table.html
The tp_thread_group_stats table has these columns: TP_GROUP_ID The thread group ID. This number is incremented when a statement starts executing, not when it finishes. QUERIES_QUEUED The number of statements received that were queued for execution.
https://dev.mysql.com/doc/refman/8.4/en/pluggable-storage-common-layer.html
A MySQL pluggable storage engine is the component in the MySQL database server that is responsible for performing the actual data I/O operations for a database as well as enabling and enforcing certain feature sets that target a specific ...
https://dev.mysql.com/doc/refman/8.4/en/replication-channels.html
In MySQL multi-source replication, a replica opens multiple replication channels, one for each source server. The replication channels represent the path of transactions flowing from a source to the replica. Each replication channel has its own ...
https://dev.mysql.com/doc/refman/8.4/en/replication-howto-masterbaseconfig.html
To configure a source to use binary log file position based replication, you must ensure that binary logging is enabled, and establish a unique server ID. Each server within a replication topology must be configured with a unique server ID, which ...
https://dev.mysql.com/doc/refman/8.4/en/replication-howto.html
This section describes how to set up a MySQL server to use binary log file position based replication. There are a number of different methods for setting up replication, and the exact method to use depends on how you are setting up replication, ...
https://dev.mysql.com/doc/refman/8.4/en/replication-options-replica.html
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 ...
https://dev.mysql.com/doc/refman/8.4/en/replication-options-source.html
This section describes the server options and system variables that you can use on replication source servers. You can specify the options either on the command line or in an option file. On the source and each replica, you must set the server_id ...
https://dev.mysql.com/doc/refman/8.4/en/source-configuration-options.html
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 information about options supported by CMake, run either of these commands in ...