21.3.3.4 Defining Computers in an NDB Cluster
The [computer]
section has no real significance other than serving as a way to avoid the need of defining host names for each node in the system. All parameters mentioned here are required.
-
Table 21.7 This table provides type and value information for the Id computer configuration parameter
Property Value Version (or later) NDB 7.5.0 Type or units string Default [none] Range ... Restart Type IS This is a unique identifier, used to refer to the host computer elsewhere in the configuration file.
ImportantThe computer ID is not the same as the node ID used for a management, API, or data node. Unlike the case with node IDs, you cannot use
NodeId
in place ofId
in the[computer]
section of theconfig.ini
file. -
Table 21.8 This table provides type and value information for the HostName computer configuration parameter
Property Value Version (or later) NDB 7.5.0 Type or units name or IP address Default [none] Range ... Restart Type N This is the computer's hostname or IP address.
Restart types. Information about the restart types used by the parameter descriptions in this section is shown in the following table:
Table 21.9 NDB Cluster restart types
Symbol | Restart Type | Description |
---|---|---|
N | Node | The parameter can be updated using a rolling restart (see Section 21.5.5, “Performing a Rolling Restart of an NDB Cluster”) |
S | System | All cluster nodes must be shut down completely, then restarted, to effect a change in this parameter |
I | Initial | Data nodes must be restarted using the --initial option |