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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-transporters.html
This information is shown in the table's status column, which can have any one of the following values: CONNECTING, CONNECTED, DISCONNECTING, or DISCONNECTED. In NDB 8.0.37 and later, you can obtain similar information about individual transporters ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-add-node-basics.html
Assuming that you already have a running NDB Cluster, adding data nodes online requires the following steps: Edit the cluster configuration config.ini file, adding new [ndbd] sections corresponding to the nodes to be added. In the event that you ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-import.html
Behaves like the ndb_autoincrement_prefetch_sz system variable does in the MySQL Server. ndb_import imports CSV-formatted data, such as that produced by mysqldump --tab, directly into NDB using the NDB API. ndb_import requires a connection to an ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-top.html
ndb_top displays running information in the terminal about CPU usage by NDB threads on an NDB Cluster data node. Each thread is represented by two rows in the output, the first showing system statistics, the second showing the measured statistics ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-replication-schema.html
ndb_apply_status Table ndb_apply_status is used to keep a record of the operations that have been replicated from the source to the replica. ndb_apply_status is used to record which epoch transactions have been replicated and applied to a replica ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-rolling-restart.html
Features specific to the “new” version must not be used until all management nodes and data nodes have been upgraded. When performing a rolling restart to update the cluster's configuration, you can use the config_generation column of the ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-security-mysql-security-procedures.html
Alternatively, you can start the MySQL server process with --user=mysql on the command line, but it is preferable to use the my.cnf option, since you might forget to use the command-line option and so have mysqld running as another user ... In this ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-indexes.html
For example, if you have a three-column index on (col1, col2, col3), you have indexed search capabilities on (col1), (col1, col2), and (col1, col2, col3). Indexes are used to find rows with specific column values quickly. Without an index, MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-tips.html
Safe-updates mode is helpful for cases when you might have issued an UPDATE or DELETE statement but forgotten the WHERE clause indicating which rows to modify. If it is important to have mysql terminate with an error if the connection has been lost, ... This section provides information about techniques for more effective use of mysql and about mysql operational ...
https://dev.mysql.com/doc/refman/8.0/en/mysqld-safe.html
This option is needed if you use the MySQL binary distribution but have the data directory outside of the binary distribution. mysqld_safe is the recommended way to start a mysqld server on Unix. mysqld_safe adds some safety features such as ...