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https://dev.mysql.com/doc/refman/8.4/en/performance-schema-runtime-configuration.html
If you have the UPDATE privilege, you can change Performance Schema operation by modifying setup tables to affect how monitoring occurs. For additional details about these tables, see Section 29.12.2, “Performance Schema Setup Tables”. The ...
https://dev.mysql.com/doc/refman/8.4/en/point-in-time-recovery-positions.html
As an example, suppose that around 20:06:00 on March 11, 2020, an SQL statement was executed that deleted a table. You can perform a point-in-time recovery to restore the server up to its state right before the table deletion. In our example, given ... The last section, Section 9.5.1, “Point-in-Time Recovery Using Binary Log”, explains the general idea of using the binary log to perform a ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-triggers.html
If an upgraded replication source server still has old replicas using MySQL versions that do not support multiple triggers, an error occurs on those replicas if a trigger is created on the source for a table that already has a trigger with the same ... With statement-based replication, triggers executed on the source also execute on the ...
https://dev.mysql.com/doc/refman/8.4/en/replication-multi-source-monitoring.html
To monitor the status of replication channels the following options exist: Using the replication Performance Schema tables. The information that was available through these variables has been migrated to the replication performance tables. This ...
https://dev.mysql.com/doc/refman/8.4/en/sys-schema-progress-reporting.html
The following sys schema views provide progress reporting for long-running transactions: processlist session x$processlist x$session Assuming that the required instruments and consumers are enabled, the progress column of these views shows the ...
https://dev.mysql.com/doc/refman/8.4/en/using-explain.html
That is, MySQL explains how it would process the statement, including information about how tables are joined and in which order. With the help of EXPLAIN, you can see where you should add indexes to tables so that the statement executes faster by ... The EXPLAIN statement provides information about how MySQL executes statements: EXPLAIN works with SELECT, DELETE, INSERT, REPLACE, and UPDATE ...
https://dev.mysql.com/doc/refman/8.4/en/using-log-files.html
Note that before starting mysqld with the general query log enabled, you should check all your tables with myisamchk. If this happens, you should check all your tables with myisamchk (see Chapter 7, MySQL Server Administration), and test the ...If ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/mysqlbackup.incremental.html
Creating Incremental Backups Using Only the Redo Log The --incremental-with-redo-log-only might offer some benefits over the --incremental option for creating an incremental backup: The changes to the InnoDB tables are determined based on the ...In ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/restore-use-tts.html
Requirements for restoring backups created with transportable tablespaces (TTS) (that is, created with the --use-tts option) are similar to those listed in Section 5.1.4, “Table-Level Recovery (TLR)”, with some differences noted in the section.
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndbd.html
The ndbd binary provides the single-threaded version of the process that is used to handle all the data in tables employing the NDBCLUSTER storage engine. Options that can be used with ndbd are shown in the following table. The option also causes ...This data node process enables a data node to accomplish distributed transaction handling, node recovery, checkpointing to disk, online backup, and related ...