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19.5.10.7 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 MySQL 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.

Column NameTypeDescription
param_numberintegerThe parameter's internal ID number
param_namestringThe name of the parameter
param_descriptionstringA brief description of the parameter
param_typestringThe parameter's data type
param_defaultstringThe parameter's default value, if any
param_minstringThe parameter's maximum value, if any
param_maxstringThe parameter's minimum value, if any
param_mandatoryintegerThis is 1 if the parameter is required, otherwise 0
param_statusstringCurrently unused

In MySQL Cluster NDB 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 MySQL Cluster NDB 7.5.0.

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


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