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## 23.4.5 ndb_mgm — The NDB Cluster Management Client 

The ndb_mgm  management client process is actually not needed to run the cluster. Its value lies in providing a set of commands for checking the cluster’s status, starting backups, and performing other administrative functions. The management client accesses the management server using a C API. Advanced users can also employ this API for programming dedicated management processes to perform tasks similar to those performed by ndb_mgm . 

To start the management client, it is necessary to supply the host name and port number of the management server: 

shell> ndb_mgm [ host_name  [ port_num ]] 

For example: 

shell> ndb_mgm ndb_mgmd.mysql.com 1186 

The default host name and port number are localhost  and 1186, respectively. 

All options that can be used with ndb_mgm  are shown in the following table. Additional descriptions follow the table. 

<img src='content_image/675699.jpg'>

