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22.5.10.7 The ndbinfo config_nodes Table
The config_nodes table shows nodes configured
in an NDB Cluster config.ini file. For each
node, the table displays a row containing the node ID, the type
of node (management node, data node, or API node), and the name
or IP address of the host on which the node is configured to
run.
This table does not indicate whether a given node is actually
running, or whether it is currently connected to the cluster.
Information about nodes connected to an NDB Cluster can be
obtained from the nodes and
processes table.
The following table provides information about the columns in
the config_nodes table. For each column, the
table shows the name, data type, and a brief description.
Additional information can be found in the notes following the
table.
Table 22.381 Columns of the config_params table
| Column Name | Type | Description |
|---|---|---|
node_id |
integer | The node's ID |
node_type |
string | The type of node |
node_hostname |
string | The name or IP address of the host on which the node resides |
The node_id column shows the node ID used in
the config.ini file for this node; if none
is specified, the node ID that would be assigned automatically
to this node is displayed.
The node_type column displays one of the
following three values:
MGM: Management node.NDB: Data node.API: API node; this includes SQL nodes.
The node_hostname column shows the node host
as specified in the config.ini file. This
can be empty for an API node, if
HostName has not been set
in the cluster configuration file. If
HostName has not been
set for a data node in the configuration file,
localhost is used here.
localhost is also used if
HostName has not been
specified for a management node.
Document created the 26/06/2006, last modified the 26/10/2018
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