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https://dev.mysql.com/doc/refman/8.0/en/group-replication-gtids.html
The settings are made automatically on the Group Replication channels when they are created, or when a member server in a replication group is upgraded to 8.0.27 or higher. Group Replication uses GTIDs (global transaction identifiers) to track ...
https://dev.mysql.com/doc/refman/8.0/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 ...If s2 is ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-performance-xcom-cache.html
Note that before MySQL 8.0.21, this time period defaulted to 5 seconds from the member becoming unavailable, which is just the detection period before a suspicion is created, because the additional expel timeout set by the ... The group ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-performance.html
Group Replication is designed to create fault-tolerant systems with built-in failure detection and automated recovery. If a member server instance leaves voluntarily or stops communicating with the group, the remaining members agree a ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-responses-failure-partition.html
Setting a timeout means you do not need to pro-actively monitor for servers that are in a minority group after a network partition, and you can avoid the possibility of creating a split-brain situation (with two versions of the group membership) due ... By default, members that find themselves in a minority due to a network partition do not automatically leave the ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-restarting-group.html
In that situation, to re-create the group, it must be started by bootstrapping as if it was being started for the first time. Group Replication is designed to ensure that the database service is continuously available, even if some of the servers ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-upgrade-with-mysqlbackup.html
Repeat this process to create a suitable number of new instances, for example to be able to handle a failover. As part of a provisioning approach you can use MySQL Enterprise Backup to copy and restore the data from a group member to new members.
https://dev.mysql.com/doc/refman/8.0/en/group-replication-use-cases.html
Group Replication enables you to create fault-tolerant systems with redundancy by replicating the system state to a set of servers. A connector, load balancer, router, or some form of middleware are more suitable to deal with this issue. Even if ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-view-changes.html
The randomly generated part is generated when the group is created, and remains unchanged while there is at least one member in the group. Begin: Stable Group All servers are online and processing incoming transactions from the group. Figure 20.8 ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-disk-io.html
InnoDB uses asynchronous disk I/O where possible, by creating a number of threads to handle I/O operations, while permitting other database operations to proceed while the I/O is still in progress. There are two read-ahead heuristics in InnoDB: In ...On Linux and Windows platforms, InnoDB uses the available OS and library functions to perform “native” asynchronous ...