NDB Cluster Configuration Files NodeId  is the only supported parameter name to use when identifying data nodes. • ExecuteOnComputer • HostName This refers to the  Id  set for one of the computers defined in a  [computer]  section. Version (or later) NDB 8.0.13 Type or units name Default [...] Range ... Deprecated Yes (in NDB 7.5) Restart Type S (NDB 8.0.13) Important This parameter is deprecated, and is subject to removal in a future release. Use the  HostName  parameter instead. The node ID for this node can be given out only to connections that explicitly request it. A management server that requests “any”  node ID cannot use this one. This parameter can be used when running multiple management servers on the same host, and  HostName  is not sufficient for distinguishing among processes. Intended for use in testing. • Specifying this parameter defines the hostname of the computer on which the data node is to reside. To specify a hostname other than  localhost , either this parameter or  ExecuteOnComputer  is required. • ServerPort Each node in the cluster uses a port to connect to other nodes. By default, this port is allocated dynamically in such a way as to ensure that no two nodes on the same host computer receive the same port number, so it should normally not be necessary to specify a value for this parameter. However, if you need to be able to open specific ports in a firewall to permit communication between data nodes and API nodes (including SQL nodes), you can set this parameter to the number of 4070 Version (or later) NDB 8.0.13 Type or units unsigned Default [...] Range 1 - 64K Restart Type S (NDB 8.0.13) Version (or later) NDB 8.0.13 Type or units name or IP address Default localhost Range ... Restart Type N (NDB 8.0.13)