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https://dev.mysql.com/doc/refman/8.0/en/change-replication-source-to.html
Note that the Group Replication applier channel (group_replication_applier) has no receiver thread, only an applier thread. Channels specific to Group Replication cannot use ASSIGN_GTIDS_TO_ANONYMOUS_TRANSACTIONS, but an asynchronous replication ...
https://dev.mysql.com/doc/refman/8.0/en/change-master-to.html
Note that the Group Replication applier channel (group_replication_applier) has no receiver thread, only an applier thread. Channels specific to Group Replication cannot use ASSIGN_GTIDS_TO_ANONYMOUS_TRANSACTIONS, but an asynchronous replication ...
https://dev.mysql.com/doc/refman/8.0/en/mysqld-multi.html
mysqld_multi searches for groups named [mysqldN] in my.cnf (or in the file named by the --defaults-file option). This number is referred to in the following discussion as the option group number, or GNR. Group numbers distinguish option groups from ... mysqld_multi is designed to manage several mysqld processes that listen for connections on different Unix socket files and TCP/IP ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-mgm-client-commands.html
CREATE NODEGROUP nodeid[, nodeid, ...] Creates a new NDB Cluster node group and causes data nodes to join it. This command is used after adding new data nodes online to an NDB Cluster, and causes them to join a new node group and thus to begin ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-add-node-remarks.html
However, all data and indexes added to tables created after a new node group has been added are distributed automatically among all cluster data nodes, including those added as part of the new node group. It is possible to add a new node group ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlbinlog.html
Note When using event groups, the file offsets of events may be grouped together and the comments of events may be grouped together. mysqlbinlog supports the following options, which can be specified on the command line or in the [mysqlbinlog] and ... The server's binary log consists of files containing “events” that describe modifications to database ...
https://dev.mysql.com/doc/refman/8.0/en/mysqldump.html
Option Syntax - Alphabetical Summary mysqldump supports the following options, which can be specified on the command line or in the [mysqldump] and [client] groups of an option file. A “login path” is an option group containing options that ...
https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html
They are often used with a GROUP BY clause to group values into subsets. If you use an aggregate function in a statement containing no GROUP BY clause, it is equivalent to grouping on all rows. For more information, see Section 14.19.3, “MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/index-statistics.html
Table statistics are based on value groups, where a value group is a set of rows with the same key prefix value. For optimizer purposes, an important statistic is the average value group size. The average value group size is related to table ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-asynchronous-connection-failover-managed-table.html
This table holds configuration information used by the replica's asynchronous connection failover mechanism to handle managed groups, including Group Replication topologies. When you add a group member to the source list and define it as part of a ...The asynchronous connection failover mechanism fails over the connection if another available server on the source list has a higher priority (weight) ...