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MySQL 5.7 Reference Manual
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Excerpts from this Manual Defining Computers in a MySQL Cluster

The [computer] section has no real significance other than serving as a way to avoid the need of defining host names for each node in the system. All parameters mentioned here are required.

  • Id

    Effective VersionType/UnitsDefaultRange/ValuesRestart Type
    NDB 7.4.0string[none]...IS

    This is a unique identifier, used to refer to the host computer elsewhere in the configuration file.


    The computer ID is not the same as the node ID used for a management, API, or data node. Unlike the case with node IDs, you cannot use NodeId in place of Id in the [computer] section of the config.ini file.

  • HostName

    Effective VersionType/UnitsDefaultRange/ValuesRestart Type
    NDB 7.4.0name or IP address[none]...N

    This is the computer's hostname or IP address.

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