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https://dev.mysql.com/doc/refman/8.0/en/group-replication-enterprise-backup.html
MySQL Enterprise Backup is a commercially-licensed backup utility for MySQL Server, available with MySQL Enterprise Edition. This section explains how to back up and subsequently restore a Group Replication member using MySQL Enterprise Backup. The ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-functions-for-new-primary.html
To allow inspection of the primary while the function is operating, single statements that do not modify data, as listed in Permitted Queries Under Consistency Rules, are permitted to proceed. The following function enables you to set a member of a ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-observability.html
The entire state of the system (including the view, conflict statistics and service states) can be queried through Performance Schema tables. There is a lot of automation built into the Group Replication plugin. Nonetheless, you might sometimes ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-performance-xcom-cache-reduce.html
The minimum setting for the XCom message cache size is 1 GB up to MySQL 8.0.20. From MySQL 8.0.21, the minimum setting is 134217728 bytes (128 MB), which enables deployment on a host that has a restricted amount of available memory. Having a very ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-replication-group-members.html
The information is shared between all the server instances that are members of the replication group, so information on all the group members can be queried from any member. The performance_schema.replication_group_members table is used for ...
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-single-consensus-leader.html
The WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE column of the Performance Schema table replication_group_communication_information table shows whether the group supports the use of a single leader, even if group_replication_paxos_single_leader is ... By ...
https://dev.mysql.com/doc/refman/8.0/en/gtid-functions.html
The functions described in this section are used with GTID-based replication. It is important to keep in mind that all of these functions take string representations of GTID sets as arguments. As such, the GTID sets must always be quoted when used ...
https://dev.mysql.com/doc/refman/8.0/en/handler.html
HANDLER tbl_name OPEN [ [AS] alias] HANDLER tbl_name READ index_name { = | <= | >= | < | > } (value1,value2,...) [ WHERE where_condition ] [LIMIT ... ] HANDLER tbl_name READ index_name { FIRST | NEXT | PREV | LAST } [ WHERE where_condition ] [LIMIT ...
https://dev.mysql.com/doc/refman/8.0/en/hexadecimal-literals.html
Hexadecimal literal values are written using X'val' or 0xval notation, where val contains hexadecimal digits (0..9, A..F). Lettercase of the digits and of any leading X does not matter. A leading 0x is case-sensitive and cannot be written as 0X.