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21.5.10.8 The ndbinfo config_params Table

The config_params table is a static table which provides the names and internal ID numbers of and other information about NDB Cluster configuration parameters.

The following table provides information about the columns in the config_params 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. This table can also be used in conjunction with the config_values table for obtaining realtime information about node configuration parameters.

Table 21.364 Columns of the config_params table

Column Name Type Description
param_number integer The parameter's internal ID number
param_name string The name of the parameter
param_description string A brief description of the parameter
param_type string The parameter's data type
param_default string The parameter's default value, if any
param_min string The parameter's maximum value, if any
param_max string The parameter's minimum value, if any
param_mandatory integer This is 1 if the parameter is required, otherwise 0
param_status string Currently unused

In NDB Cluster 7.5 (and later), this table is read-only. The param_description, param_type, param_default, param_min, param_max, param_mandatory, and param_status columns were all added in NDB 7.5.0.

Although this is a static table, its content can vary between NDB Cluster installations, since supported parameters can vary due to differences between software releases, cluster hardware configurations, and other factors.