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https://dev.mysql.com/doc/refman/8.0/en/group-replication-ipv6.html
To use IPv6 addresses, the operating system on the server host and the MySQL Server instance must both be configured to support IPv6. If a host name specified as the Group Replication local address for a server instance resolves to both an IPv4 and ... As of MySQL 8.0.14, Group Replication group members can use IPv6 addresses as an alternative to IPv4 addresses for communications within the ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-tables-table.html
To update cached values at any time for a given table, use ANALYZE TABLE. Even with file-per-table mode with each InnoDB table in a separate .ibd file, change buffering can delay the write to the data file, so the file modification time is different ...The information_schema_stats_expiry system variable defines the period of time before cached table statistics ...If there are no cached ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-restarting-group.html
The replication group must therefore be restarted beginning with the most up to date member, that is, the member that has the most transactions executed and certified. You must therefore restart each member to check the transactions, compare all the ...As long as the remaining members are a majority of the group they can elect a new primary and continue to function as a ... Group Replication is designed to ensure that the database service is continuously available, even if ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-limitations-transactions.html
A number of limitations exist in NDB Cluster with regard to the handling of transactions. LOCK IN SHARE MODE causes shared row locks to be used; FOR UPDATE causes exclusive row locks to be used. See Section 25.6.8.4, “NDB Cluster Backup ...The ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-transporters.html
In NDB 8.0.37 and later, you can obtain similar information about individual transporters from the transporter_details table. Connections to API and management nodes which are configured but not currently connected to the cluster are shown with ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-error-summary-tables.html
SUM_ERROR_HANDLED This column aggregates the number of times the error was handled by an SQL exception handler. FIRST_SEEN, LAST_SEEN Timestamp indicating when the error was first seen and most recently seen. The Performance Schema maintains ...For ...
https://dev.mysql.com/doc/refman/8.0/en/statement-caching.html
For certain statements that a client might execute multiple times during a session, the server converts the statement to an internal structure and caches that structure to be used during execution. Conversion and caching occurs for these ...Caching ...
https://dev.mysql.com/doc/refman/8.0/en/flow-control-functions.html
If all types are temporal, the result is temporal: If all temporal types are DATE, TIME, or TIMESTAMP, the result is DATE, TIME, or TIMESTAMP, respectively. Otherwise, for a mix of temporal types, the result is DATETIME. The CASE statement cannot ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndbmtd.html
If the is the first time this node has failed, then these files are named ndb_3_trace.log.1_t1, ndb_3_trace.log.1_t2, ndb_3_trace.log.1_t3, and ndb_3_trace.log.1_t4. ndbmtd is a multithreaded version of ndbd, the process that is used to handle all ...ndbmtd is intended for use on host computers having multiple CPU ...
https://dev.mysql.com/doc/refman/8.0/en/sys-schema-object-index.html
The following tables list sys schema objects and provide a short description of each one.