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https://dev.mysql.com/doc/refman/8.0/en/group-replication-responses-failure-exit.html
However, clients can still read data, and because updates are no longer being made, there is a probability of stale reads which increases over time. Unreachable majority timeout - The member has lost contact with a majority of the group members so ... The group_replication_exit_state_action system variable, which is available from MySQL 8.0.12 and MySQL 5.7.24, specifies what Group Replication does when the member leaves the group unintentionally due to an error or problem, and either fails to auto-rejoin or does not ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-server-states.html
The state of a Group Replication group member shows its current role in the group. The Performance Schema table replication_group_members shows the state for each member in a group. If the group is fully functional and all members are communicating ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-summary.html
A replication group is formed by multiple servers; each server in the group may execute transactions independently at any time. Group Replication is a technique that can be used to implement fault-tolerant systems. A replication group is a set of ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-tuning-recovery.html
Sleep Interval for Connection Attempts For state transfer from the binary log, the group_replication_recovery_reconnect_interval system variable defines how much time the distributed recovery process should sleep between donor connection attempts.
https://dev.mysql.com/doc/refman/8.0/en/group-replication-upgrade.html
While you are in the process of upgrading an online group, in order to maximize availability, you might need to have members with different MySQL Server versions running at the same time. If your group needs to remain online, as is common with ...
https://dev.mysql.com/doc/refman/8.0/en/handler-scope.html
A stored program may include handlers to be invoked when certain conditions occur within the program. The applicability of each handler depends on its location within the program definition and on the condition or conditions that it handles: A ...
https://dev.mysql.com/doc/refman/8.0/en/help.html
HELP 'search_string' The HELP statement returns online information from the MySQL Reference Manual. Its proper operation requires that the help tables in the mysql database be initialized with help topic information (see Section 7.1.17, ...
https://dev.mysql.com/doc/refman/8.0/en/index-hints.html
Thus, you should expect USE INDEX, FORCE INDEX, and IGNORE INDEX to be deprecated in a future release of MySQL, and at some time thereafter to be removed altogether. Index hints give the optimizer information about how to choose indexes during ...
https://dev.mysql.com/doc/refman/8.0/en/index-statistics.html
(This may occur for bulk inserts or deletes, or some ALTER TABLE statements, for example.) If this happens, the statistics are collected using whatever value innodb_stats_method or myisam_stats_method has at the time. Storage engines collect ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-buffer-page-table.html
ACCESS_TIME An abstract number used to judge the first access time of the page. The INNODB_BUFFER_PAGE table provides information about each page in the InnoDB buffer pool. For related usage information and examples, see Section 17.15.5, “InnoDB ...