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https://dev.mysql.com/doc/refman/9.7/en/group-replication-secure-socket-layer-support-ssl.html
Secure sockets can be used for group communication connections between members of a group. The Group Replication system variable group_replication_ssl_mode is used to activate the use of SSL for group communication connections and specify the ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-tcp-definition.html
TCP/IP is the default transport mechanism for all connections between nodes in an NDB Cluster. Normally it is not necessary to define TCP/IP connections; NDB Cluster automatically sets up such connections for all data nodes, management nodes, and ...
https://dev.mysql.com/doc/refman/9.7/en/openid-pluggable-authentication.html
Note OpenID Connect pluggable authentication is an extension included in MySQL Enterprise Edition, a commercial product. MySQL Enterprise Edition supports an authentication method that enables users to authenticate to MySQL Server using OpenID ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-replication-connection-configuration-table.html
This table shows the configuration parameters used by the replica for connecting to the source. Parameters stored in the table can be changed at runtime with the CHANGE REPLICATION SOURCE TO statement. It contains values that define how the replica ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-tp-connections-table.html
The tp_connections table contains one row per connection managed by the Thread Pool plugin. Each row provides information about the current state of a thread pool connection. The tp_connections table contains the following rows: CONNECTION_ID The ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-shm-definition.html
Communications between NDB cluster nodes are normally handled using TCP/IP. The shared memory (SHM) transporter is distinguished by the fact that signals are transmitted by writing in memory rather than on a socket. The shared-memory transporter ...
https://dev.mysql.com/doc/refman/9.7/en/information-schema-connection-control-failed-login-attempts-table.html
This table provides information about the current number of consecutive failed connection attempts per account (user/host combination). Note This table is deprecated, as are the Connection Control plugins; users are encouraged to migrate to the ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-replication-asynchronous-connection-failover-managed-table.html
This table holds configuration information used by the replica's asynchronous connection failover mechanism to handle managed groups, including Group Replication topologies. When you add a group member to the source list and define it as part of a ...
https://dev.mysql.com/doc/refman/9.7/en/communication-errors.html
If connection problems occur such as communication errors or aborted connections, use these sources of information to diagnose problems: The error log. The host cache, which is accessible using the Performance Schema host_cache table. See Section ...
https://dev.mysql.com/doc/refman/9.7/en/group-replication-distributed-recovery-securing.html
Important When using the MySQL communication stack (group_replication_communication_stack=MYSQL) AND secure connections between members (group_replication_ssl_mode is not set to DISABLED), the security settings discussed in this section are applied ...