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https://dev.mysql.com/doc/refman/8.0/en/performance-schema-variables-info-table.html
The variables_info table shows, for each system variable, the source from which it was most recently set, and its range of values. VARIABLE_SOURCE The source from which the variable was most recently set: COMMAND_LINE The variable was set on the ...
https://dev.mysql.com/doc/refman/8.0/en/point-in-time-recovery-binlog.html
This section explains the general idea of using the binary log to perform a point-in-time-recovery. The next section, Section 9.5.2, “Point-in-Time Recovery Using Event Positions”, explains the operation in details with an example. Note Many of ...
https://dev.mysql.com/doc/refman/8.0/en/range-optimization.html
The range access method uses a single index to retrieve a subset of table rows that are contained within one or several index value intervals. The following sections describe conditions under which the optimizer uses range access. Additionally, for ...
https://dev.mysql.com/doc/refman/8.0/en/replication-delayed.html
MySQL supports delayed replication such that a replica server deliberately executes transactions later than the source by at least a specified amount of time. This section describes how to configure a replication delay on a replica, and how to ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-shutdowns.html
It is safe to shut down a replication source server and restart it later. When a replica loses its connection to the source, the replica tries to reconnect immediately and retries periodically if that fails. This may be changed with the CHANGE ...
https://dev.mysql.com/doc/refman/8.0/en/replication-gtids-auto-positioning.html
GTIDs replace the file-offset pairs previously required to determine points for starting, stopping, or resuming the flow of data between source and replica. When GTIDs are in use, all the information that the replica needs for synchronizing with ...
https://dev.mysql.com/doc/refman/8.0/en/replication-gtids-howto.html
This section describes a process for configuring and starting GTID-based replication in MySQL 8.0. This is a “cold start” procedure that assumes either that you are starting the source server for the first time, or that it is possible to stop ...
https://dev.mysql.com/doc/refman/8.0/en/replication-implementation.html
Replication is based on the source server keeping track of all changes to its databases (updates, deletes, and so on) in its binary log. The binary log serves as a written record of all events that modify database structure or content (data) from ...
https://dev.mysql.com/doc/refman/8.0/en/replication-multi-source-monitoring.html
To monitor the status of replication channels the following options exist: Using the replication Performance Schema tables. This enables you to write complex queries based on Channel_Name as a key. By default, if the FOR CHANNEL channel clause is ...
https://dev.mysql.com/doc/refman/8.0/en/replication-options.html
The following sections contain information about mysqld options and server variables that are used in replication and for controlling the binary log. Options and variables for use on sources and replicas are covered separately, as are options and ...