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https://dev.mysql.com/doc/refman/8.4/en/telemetry-metrics.html
The Server Telemetry Metrics Service and the Server Metrics Instrument Service enable you to register and query telemetry meters, metrics, and metric measurements, in order to periodically export these measurements using the OpenTelemetry protocol.
https://dev.mysql.com/doc/refman/8.4/en/upgrade-troubleshooting.html
If problems occur, such as that the new mysqld server does not start, verify that you do not have an old my.cnf file from your previous installation. If upgrade to MySQL 8.4 fails due to any of the issues outlined in Section 3.6, “Preparing Your ... A schema mismatch in a MySQL 8.3 instance between the .frm file of a table and the InnoDB data dictionary can cause an upgrade to MySQL 8.4 to ...
https://dev.mysql.com/doc/refman/8.4/en/validate-password-transitioning.html
Note In MySQL 8.4, the validate_password plugin was reimplemented as the validate_password component. The validate_password plugin is deprecated; expect it to be removed in a future version of MySQL. MySQL installations that currently use the ...
https://dev.mysql.com/doc/refman/8.4/en/version-tokens-installation.html
To be usable by the server, the plugin library file must be located in the MySQL plugin directory (the directory named by the plugin_dir system variable). If necessary, configure the plugin directory location by setting the value of plugin_dir at ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/bugs.corruption.html
Here are some suggestions for dealing with it: The problem can occur if the MySQL server is too busy. Before trying other solutions, you might want to perform the backup again using some non-default settings for the following mysqlbackup options: ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/meb-backup-process.html
In general, this is what happens when you run a backup operation with mysqlbackup: The InnoDB data files, redo log, binary log, and relay log files (except for the log files currently in use) are being copied into the backup, while the database ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/meb-files-backed-up-generated.html
Inside the image backup file created by the backup-to-image command of mysqlbackup are some new files that are produced during the backup process. These configuration parameters are read by mysqlbackup during operations like apply-log to determine ...These files are used to control later tasks such as verifying and restoring the backup ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/restore.html
Example 5.1 Restoring a Database Server mysqlbackup --defaults-file=<my.cnf> -uroot --backup-image=<image_name> \ --backup-dir=<backupTmpDir> --datadir=<restoreDir> copy-back-and-apply-log The copy-back-and-apply-log command achieves two things: ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/standard-options.html
Full descriptions for these options can be found in the MySQL reference manual, for example in Server Option, System Variable, and Status Variable Reference. The following options are also common between mysqlbackup and mysql, and full descriptions ... The general options are options of a general nature, or options that are not classified under any other specific option group: The following general options also exist for the mysql ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/index.html
If you have any questions about the features included in your version of MySQL Cluster Manager, refer to your MySQL Cluster Manager license agreement or contact your Oracle sales representative. This manual contains certain basic information about ... Abstract This is the User Manual for the MySQL Cluster Manager, version ...