https://dev.mysql.com/mysql-cluster-ndbinfo-arbitrator-validity-summary.html
If it has more than 1 row for longer than a few moments, then either not all nodes are connected to the arbitrator, or all nodes are connected, but do not agree on the same arbitrator. arb_connected shows whether this node is connected to the ...
https://dev.mysql.com/mysql-cluster-ndbinfo.html
ndbinfo is included with NDB Cluster support in the MySQL Server; no special compilation or configuration steps are required; the tables are created by the MySQL Server when it connects to the cluster. NDB Cluster also maintains tables in the ...
https://dev.mysql.com/mysql-cluster.html
Your MySQL connection id is 2 Server version: 8.0.20-cluster Source distribution Type 'help;' or '\h' for help. MySQL NDB Cluster is a high-availability, high-redundancy version of MySQL adapted for the distributed computing environment. The most ...
https://dev.mysql.com/mysql-get-ssl-cipher.html
const char *mysql_get_ssl_cipher(MYSQL *mysql) mysql_get_ssl_cipher() returns the encryption cipher used for the given connection to the server. A string naming the encryption cipher used for the connection, or NULL if the connection is not ...
https://dev.mysql.com/mysql-innodb-cluster-upgrade-metadata.html
This dba.upgradeMetadata() operation compares the version of the metadata schema found on the cluster MySQL Shell is currently connected to with the version of the metadata schema supported by this MySQL Shell version. To upgrade a cluster's ... As ...
https://dev.mysql.com/mysql-innodb-cluster-upgrade-troubleshoot.html
MySQL Shell uses the host value of the provided connection parameters as the target hostname used for AdminAPI operations, namely to register the instance in the metadata (for the dba.createCluster() and Cluster.addInstance() operations). However, ...When the report_host variable is set to empty, Group Replication uses an empty value for the host but AdminAPI (for example in commands such as dba.checkInstanceConfiguration(), dba.configureInstance(), dba.createCluster(), and so on) reports the hostname as the value used which is inconsistent with the value reported by Group ...
https://dev.mysql.com/mysql-thread-id.html
unsigned long mysql_thread_id(MYSQL *mysql) Returns the thread ID of the current connection. If the connection is lost and you reconnect with mysql_ping(), the thread ID changes. To get the connection ID, execute a SELECT CONNECTION_ID() query and ...This value can be used as an argument to mysql_kill() to kill the ...
https://dev.mysql.com/mysqld-safe.html
--port=port_num The port number that the server should use when listening for TCP/IP connections. --socket=path The Unix socket file that the server should use when listening for local connections. mysqld_safe is the recommended way to start a ...
https://dev.mysql.com/performance-schema-status-monitoring.html
Other mutexes have an instance per connection, or per page in various caches and data buffers, so the number of instances varies over time. Increasing the maximum number of connections or the maximum size of some buffers will increase the maximum ...
https://dev.mysql.com/replication-features-transactions.html
However, when a second connection updates the nontransactional table before the first connection transaction is complete, statements can be logged out of order because the second connection update is written immediately after it is performed, ...In ...
