--help --usage, -?

Prints a short list with descriptions of the available command options.

--connect-string=connect_string

connect_string sets the connectstring to the management server as a command option. Available with ndb_mgm beginning with MySQL 4.1.8.

shell> ndbd --connect-string="nodeid=2;host=ndb_mgmd.mysql.com:1186"

For more information, see Section 15.3.4.2, “The Cluster Connectstring”.

--debug[=options]

This option can be used only for versions compiled with debugging enabled. It is used to enable output from debug calls in the same manner as for the mysqld process.

--execute=command, -e command

Can be used to send a command to a Cluster executable from the system shell. For example, either of the following:

shell> ndb_mgm -e "SHOW"

or

shell> ndb_mgm --execute="SHOW"

is equivalent to

ndb_mgm> SHOW

This is analogous to how the --execute or -e option works with the mysql command-line client. See Section 4.2.3.1, “Using Options on the Command Line”.

--version, -V

Prints the MySQL Cluster version number of the executable. The version number is relevant because not all versions can be used together, and the MySQL Cluster startup process verifies that the versions of the binaries being used can co-exist in the same cluster. This is also important when performing an online (rolling) software upgrade or downgrade of MySQL Cluster. (See Section 15.5.1, “Performing a Rolling Restart of the Cluster”).