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https://dev.mysql.com/doc/refman/8.4/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 ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-cloning.html
If you want to use remote cloning operations for distributed recovery in a group, you must set up existing members and joining members beforehand to support this function. If you do not want to use this function in a group, do not set it up, in ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-connection-security.html
MySQL 8.4 Group Replication can secure group communication connections between members by one of the following methods: Using its own implementation of the security protocols, including TLS/SSL and the use of an allowlist for incoming Group ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-ip-address-permissions.html
When and only when the XCom communication stack is used for establishing group communications (group_replication_communication_stack=XCOM), the Group Replication plugin lets you specify an allowlist of hosts from which an incoming Group ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-ipv6.html
Group Replication group members can use IPv6 addresses as an alternative to IPv4 addresses for communications within the group. To use IPv6 addresses, the operating system on the server host and the MySQL Server instance must both be configured to ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-summary.html
Group Replication is a technique that can be used to implement fault-tolerant systems. A replication group is a set of servers, each of which has a complete copy of the data (a shared-nothing replication scheme), which interact with each other ...
https://dev.mysql.com/doc/refman/8.4/en/index-page-merge-threshold.html
If the “page-full” percentage for an index page falls below the MERGE_THRESHOLD value when a row is deleted or when a row is shortened by an UPDATE operation, InnoDB attempts to merge the index page with a neighboring index page. The default ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-innodb-cached-indexes-table.html
The INNODB_CACHED_INDEXES table reports the number of index pages cached in the InnoDB buffer pool for each index. For related usage information and examples, see Section 17.15.5, “InnoDB INFORMATION_SCHEMA Buffer Pool Tables”. Index ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-innodb-cmpmem-table.html
The INNODB_CMPMEM and INNODB_CMPMEM_RESET tables provide status information on compressed pages within the InnoDB buffer pool. The INNODB_CMPMEM and INNODB_CMPMEM_RESET tables have these columns: PAGE_SIZE The block size in bytes. PAGES_USED The ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-innodb-metrics-table.html
The INNODB_METRICS table provides a wide variety of InnoDB performance information, complementing the specific focus areas of the Performance Schema tables for InnoDB. With simple queries, you can check the overall health of the system. With more ...