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https://dev.mysql.com/doc/refman/8.0/en/group-replication-group-write-consensus.html
This section explains how to inspect and configure the maximum number of consensus instances at any time for a group. This maximum is referred to as the event horizon for a group, and is the maximum number of consensus instances that the group can ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-operations.html
This section explains common operations for managing groups. ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-performance.html
If an otherwise correctly functioning and configured member is unable to join or rejoin the group using distributed recovery, and remains in ERROR status, Section 20.5.4.4, “Fault Tolerance for Distributed Recovery”, explains the possible issues. Group Replication is designed to create fault-tolerant systems with built-in failure detection and automated ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-requirements-and-limitations.html
This section lists and explains the requirements and limitations of Group Replication.
https://dev.mysql.com/doc/refman/8.0/en/group-replication-responses-failure-expel.html
A suspicion is created when one server does not receive messages from another server, as explained in Section 20.1.4.2, “Failure Detection”. You can use the group_replication_member_expel_timeout system variable, which is available from MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-security.html
This section explains how to secure a group, securing the connections between members of a group, or by establishing a security perimeter using an IP address allowlist.
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-view-changes.html
This topic explains the role of view changes and the view change identifier, and the steps to carry out state transfer from the binary log. When Group Replication's distributed recovery process is carrying out state transfer from the binary log, to ...
https://dev.mysql.com/doc/refman/8.0/en/index-condition-pushdown-optimization.html
EXPLAIN output shows Using index condition in the Extra column when Index Condition Pushdown is used. Index Condition Pushdown (ICP) is an optimization for the case where MySQL retrieves rows from a table using an index. Without ICP, the storage ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-compression-internals.html
The compression of B-tree nodes (of both clustered and secondary indexes) is handled differently from compression of overflow pages used to store long VARCHAR, BLOB, or TEXT columns, as explained in the following sections. This section describes ...