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https://dev.mysql.com/doc/refman/8.0/en/group-replication-offline-upgrade.html
To perform an offline upgrade of a Group Replication group, you remove each member from the group, perform an upgrade of the member and then restart the group as usual. In a multi-primary group you can shutdown the members in any order. In a ...See ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-plugin-architecture.html
MySQL Group Replication is a MySQL plugin and it builds on the existing MySQL replication infrastructure, taking advantage of features such as the binary log, row-based logging, and global transaction identifiers. The following figure presents a ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-upgrade.html
This section explains how to upgrade a Group Replication setup. The basic process of upgrading members of a group is the same as upgrading stand-alone instances, see Chapter 3, Upgrading MySQL for the actual process of doing upgrade and types ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-replication-group-member-stats.html
Each member in a replication group certifies and applies transactions received by the group. The performance_schema.replication_group_member_stats table provides group-level information related to the certification process, and also statistics for ...Statistics regarding the certifier and applier procedures are useful to understand how the applier queue is growing, how many conflicts have been found, how many transactions were checked, which transactions are committed everywhere, and so ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-functions-for-mode.html
The following functions enable you to control the mode which a replication group is running in, either single-primary or multi-primary mode. group_replication_switch_to_multi_primary_mode() Changes a group running in single-primary mode to ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-replication-group-members.html
The performance_schema.replication_group_members table is used for monitoring the status of the different server instances that are members of the group. The information in the table is updated whenever there is a view change, for example when the ...At that point, servers exchange some of their metadata to synchronize themselves and continue to cooperate ...
https://dev.mysql.com/doc/refman/8.0/en/alter-logfile-group.html
ALTER LOGFILE GROUP logfile_group ADD UNDOFILE 'file_name' [INITIAL_SIZE [=] size] [WAIT] ENGINE [=] engine_name This statement adds an UNDO file named 'file_name' to an existing log file group logfile_group. An ALTER LOGFILE GROUP statement has ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-bootstrap.html
The process of starting a group for the first time is called bootstrapping. The bootstrap should only be done by a single server, the one that starts the group and only once. This is why the value of the group_replication_bootstrap_group option was ...The same reasoning applies to stopping and restarting the plugin with this option set to ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-deploying-instances.html
The Group Replication plugin is provided with MySQL Server 8.0; no additional software is required, although the plugin must be installed in the running MySQL server. See Section 20.2.1.1, “Deploying Instances for Group Replication”; for ... The ...
https://dev.mysql.com/doc/refman/8.0/en/drop-logfile-group.html
DROP LOGFILE GROUP logfile_group ENGINE [=] engine_name This statement drops the log file group named logfile_group. The log file group must already exist or an error results. (For information on creating log file groups, see Section 15.1.16, ...