MySQL 8.0 Reference Manual Including MySQL NDB Cluster 8.0 Defining the System

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: