The [system]
section is used for parameters
applying to the cluster as a whole. The
Name
system parameter
is used with MySQL Enterprise Monitor;
ConfigGenerationNumber
and PrimaryMGMNode
are
not used in production environments. Except when using NDB
Cluster with MySQL Enterprise Monitor, is not necessary to have a
[system]
section in the
config.ini
file.
More information about these parameters can be found in the following list:
-
Version (or later) NDB 7.5.0 Type or units unsigned Default 0 Range 0 - 4294967039 (0xFFFFFEFF) Restart Type Node Restart: Requires a rolling restart of the cluster. (NDB 7.5.0)
Configuration generation number. This parameter is currently unused.
-
Version (or later) NDB 7.5.0 Type or units string Default [...] Range ... Restart Type Node Restart: Requires a rolling restart of the cluster. (NDB 7.5.0)
Set a name for the cluster. This parameter is required for deployments with MySQL Enterprise Monitor; it is otherwise unused.
You can obtain the value of this parameter by checking the
Ndb_system_name
status variable. In NDB API applications, you can also retrieve it usingget_system_name()
. -
Version (or later) NDB 7.5.0 Type or units unsigned Default 0 Range 0 - 4294967039 (0xFFFFFEFF) Restart Type Node Restart: Requires a rolling restart of the cluster. (NDB 7.5.0)
Node ID of the primary management node. This parameter is currently unused.
Restart types. Information about the restart types used by the parameter descriptions in this section is shown in the following table:
Table 4.11 NDB Cluster restart types
Symbol | Restart Type | Description |
---|---|---|
N | Node | The parameter can be updated using a rolling restart (see Section 6.5, “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 |