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https://dev.mysql.com/doc/refman/8.0/en/charset-applications.html
Specify character settings at configuration time, if you build MySQL from source. For applications that store data using the default MySQL character set and collation (utf8mb4, utf8mb4_0900_ai_ci), no special configuration should be needed. 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/group-replication-responses-failure.html
By default, the following behaviors happen if a member is suspected of having failed: Up to MySQL 8.0.20, when a suspicion is created, it times out immediately. From MySQL 8.0.21, a waiting period of 5 seconds is added before the suspicion times out ...When a suspicion times out, the suspected member is assumed to have failed, and is expelled from the ... Group Replication's failure detection mechanism is designed to identify group members that ...
https://dev.mysql.com/doc/refman/8.0/en/events-configuration.html
When the Event Scheduler is ON, the event scheduler thread is listed in the output of SHOW PROCESSLIST as a daemon process, and its state is represented as shown here: mysql> SHOW PROCESSLIST\G *************************** 1. row ... Events are ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-frequently-asked-questions.html
Alternatively, from MySQL 8.0.21, you can specify them on the START GROUP_REPLICATION statement each time Group Replication is started. From MySQL 8.0, two settings are available to increase the chances of a member remaining in or rejoining a group: ...What is the maximum number of MySQL servers in a group? A group can consist of maximum 9 ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-preload-buffer-pool.html
In addition to saving the buffer pool state at shutdown and restoring it at startup, you can save and restore the buffer pool state at any time, while the server is running. [mysqld] innodb_buffer_pool_dump_pct=40 The innodb_buffer_pool_dump_pct ...
https://dev.mysql.com/doc/refman/8.0/en/postinstallation.html
This section discusses tasks that you should perform after installing MySQL: If necessary, initialize the data directory and create the MySQL grant tables. For some MySQL installation methods, data directory initialization may be done for you ...
https://dev.mysql.com/doc/refman/8.0/en/flush.html
If the --skip-grant-tables option was specified at server startup to disable the MySQL privilege system, FLUSH PRIVILEGES provides a way to enable the privilege system at runtime. The mysqladmin utility provides a command-line interface to some ...| ...
https://dev.mysql.com/doc/refman/8.0/en/validate-password-installation.html
Note If you install MySQL 8.0 using the MySQL Yum repository, MySQL SLES Repository, or RPM packages provided by Oracle, the validate_password component is enabled by default after you start your MySQL Server for the first time. For general ... This ...
https://dev.mysql.com/doc/refman/8.0/en/what-is-crashing.html
If you have examined all other possibilities and concluded that the MySQL server or a MySQL client is causing the problem, it is time to create a bug report, see Section 1.5, “How to Report Bugs or Problems”. Other programs that are not related ...This can normally be checked by pressing the Caps Lock ...
https://dev.mysql.com/doc/refman/8.0/en/alter-instance.html
ALTER INSTANCE instance_action instance_action: { | {ENABLE|DISABLE} INNODB REDO_LOG | ROTATE INNODB MASTER KEY | ROTATE BINLOG MASTER KEY | RELOAD TLS [FOR CHANNEL {mysql_main | mysql_admin}] [NO ROLLBACK ON ERROR] | RELOAD KEYRING } ALTER ...The ...