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https://dev.mysql.com/doc/refman/8.0/en/myisamchk-general-options.html
--help, -? Command-Line Format --help Display a help message and exit. --HELP, -H Command-Line Format --HELP Display a help message and exit. --debug=debug_options, -# debug_options Command-Line Format --debug[=debug_options] Type String Default ...
https://dev.mysql.com/doc/refman/8.0/en/charset-applications.html
For applications that store data using the default MySQL character set and collation (utf8mb4, utf8mb4_0900_ai_ci), no special configuration should be needed. Specify character settings at configuration time, if you build MySQL from source. If most ...If applications require data storage using a different character set or collation, you can configure character set information several ways: Specify character settings per ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-standard-monitor.html
Status This section shows the timestamp, the monitor name, and the number of seconds that per-second averages are based on. The number of seconds is the elapsed time between the current time and the last time InnoDB Monitor output was printed. The ...Enabling either monitor for periodic output turns on the same output stream, but the stream includes extra information if the Lock Monitor is ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-data-node-memory-management.html
This ensures that the data node can run in a stable manner without using swap memory, so that NDB can be used for latency-sensitive (realtime) applications. The reserved memory area can be used only by the resource for which it is reserved and ...
https://dev.mysql.com/doc/refman/8.0/en/mysqld-multi.html
(If the option is given multiple times, the last value is used.) Command-Line Format --defaults-extra-file=filename Type File name Default Value [none] For additional information about these and other option-file options, see Section 6.2.2.3, ...It ...
https://dev.mysql.com/doc/refman/8.0/en/replication-binlog-encryption-key-rotation.html
When binary log encryption is enabled, you can rotate the binary log master key at any time while the server is running by issuing ALTER INSTANCE ROTATE BINLOG MASTER KEY. You can rotate the binary log master key on a regular basis to comply with ...Binary log encryption keys that are no longer in use for any files after the re-encryption process are removed from the ...
https://dev.mysql.com/doc/refman/8.0/en/replication-semisync-installation.html
To enable the plugins, set the appropriate system variable either at runtime using SET GLOBAL, or at server startup on the command line or in an option file. Semisynchronous replication is implemented using plugins, which must be installed on the ...After a plugin has been installed, you control it by means of the system variables associated with ...
https://dev.mysql.com/doc/refman/8.0/en/replication-upgrade.html
When you upgrade servers that participate in a replication topology, you need to take into account each server's role in the topology and look out for issues specific to replication. For general information and instructions for upgrading a MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/replication.html
In this environment, all writes and updates must take place on the source server. Replication is asynchronous by default; replicas do not need to be connected permanently to receive updates from a source. This model can improve the performance of ...
https://dev.mysql.com/doc/refman/8.0/en/signal.html
SIGNAL provides error information to a handler, to an outer portion of the application, or to the client. SIGNAL Overview Signal Condition Information Items Effect of Signals on Handlers, Cursors, and Statements SIGNAL Overview The condition_value ...Also, it provides control over the error's characteristics (error number, SQLSTATE value, ...