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https://dev.mysql.com/doc/refman/8.0/en/group-replication-connection-security.html
Stop the primary member last, so that you do not trigger a new primary election and have to wait for that to complete. From MySQL 8.0.27, Group Replication can secure group communication connections between members by one of the following methods: ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-flow-control.html
Whenever the size of one of these queues exceeds the user-defined threshold, the throttling mechanism is triggered. MySQL Group Replication ensures that a transaction commits only after a majority of the members in a group have received it and ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-member-actions.html
The Performance Schema table replication_group_member_actions lists the member actions that are available in the configuration, the events that trigger them, and whether or not they are currently enabled. From MySQL 8.0.26, Group Replication has ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-throttling.html
The quota is reduced by the number of transactions that were delayed in the last period, and then also further reduced by 10% to allow the queue that triggered the problem to reduce its size. Based on the metrics gathered across all servers in the ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-view-changes.html
This interaction with the donor continues until the server joining the group's applier thread processes the view change log event that corresponds to the view change triggered when the server joining the group came into the group. When Group ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-introduction.html
They are actually views, not base tables, so there are no files associated with them, and you cannot set triggers on them. INFORMATION_SCHEMA provides access to database metadata, information about the MySQL server such as the name of a database or ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-optimization.html
Applications that monitor databases may make frequent use of INFORMATION_SCHEMA tables. To write queries for these tables most efficiently, use the following general guidelines: Try to query only INFORMATION_SCHEMA tables that are views on data ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-locks-set.html
WRITE implicitly (for example, through triggers) or by LOCK TABLES ... A locking read, an UPDATE, or a DELETE generally set record locks on every index record that is scanned in the processing of an SQL statement. It does not matter whether there ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached-porting-memcached.html
When you use the default innodb_only caching policy, calls to add(), set(), incr(), and so on can succeed but still trigger debugging messages such as while expecting 'STORED', got unexpected response 'NOT_STORED. This is because InnoDB performs ...
https://dev.mysql.com/doc/refman/8.0/en/insert.html
Data conversions that would trigger errors abort the statement if IGNORE is not specified. INSERT [LOW_PRIORITY | DELAYED | HIGH_PRIORITY] [IGNORE] [INTO] tbl_name [PARTITION (partition_name [, partition_name] ...)] [(col_name [, col_name] ...)] { ...