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17.5.13 Adding MySQL Cluster Data Nodes Online

This section describes how to add MySQL Cluster data nodes online—that is, without needing to shut down the cluster completely and restart it as part of the process. This capability is available in MySQL Cluster NDB 7.0 (beginning with MySQL Cluster NDB 6.4.0) and later MySQL Cluster release series.


Currently, you must add new data nodes to a MySQL Cluster as part of a new node group. In addition, it is not possible to change the number of replicas (or the number of nodes per node group) online.

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