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https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-limitations-exclusive-to-cluster.html
Schema operations (DDL statements) are rejected while any data node restarts. The following are limitations specific to the NDB storage engine: Machine architecture. All machines used in the cluster must have the same architecture. That is, all ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-limitations-multiple-nodes.html
A LOCK TABLES statement or GET_LOCK() call works only for the SQL node on which the lock is issued; no other SQL node in the cluster “sees” this lock. This is true for a lock issued by any statement that locks tables as part of its operations.
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-nodes.html
This table contains information on the status of data nodes. For each data node that is running in the cluster, a corresponding row in this table provides the node's node ID, status, and uptime. For nodes that are starting, it also shows the ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-blob-tool.html
This tool can be used to check for and remove orphaned BLOB column parts from NDB tables, as well as to generate a file listing any orphaned parts. It is sometimes useful in diagnosing and repairing corrupted or damaged NDB tables containing BLOB ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-failover.html
In this case, you need to determine the latest epoch on this replica to the exclusion of any epochs from any other replicas in this replica's binary log that were not listed in the IGNORE_SERVER_IDS options of the CHANGE REPLICATION SOURCE TO ... In ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-two-channels.html
The replication processes can be initiated by issuing the START REPLICA statement on each of the replicas. In a more complete example scenario, we envision two replication channels to provide redundancy and thereby guard against possible failure of ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-tzinfo-to-sql.html
For example: mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root mysql mysql_tzinfo_to_sql reads your system's time zone files and generates SQL statements from them. The mysql_tzinfo_to_sql program loads the time zone tables in the mysql ...
https://dev.mysql.com/doc/refman/8.4/en/mysqlbinlog-backup.html
If you do not know the names, connect to the server and use the SHOW BINARY LOGS statement to see the current names. By default, mysqlbinlog reads binary log files and displays their contents in text format. This enables you to examine events ...
https://dev.mysql.com/doc/refman/8.4/en/mysqldump-definition-data-dumps.html
The --no-data option tells mysqldump not to dump table data, resulting in the dump file containing only statements to create the tables. Conversely, the --no-create-info option tells mysqldump to suppress CREATE statements from the output, so that ...
https://dev.mysql.com/doc/refman/8.4/en/network-namespace-support.html
For replication connections from replica servers to source servers, use the CHANGE REPLICATION SOURCE TO statement and specify the NETWORK_NAMESPACE option. A network namespace is a logical copy of the network stack from the host system. Network ...