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The multiport feature allows internode communication to and from any core of a cluster. It can improve performance under heavy load.

Starting at port 24379, (for both TCP and UDP), open the same number of ports as there are cores or hyper-threads licensed for a node. The maximum number of licensed cores per node is 32, hence the suggested maximum range of 24379 - 24410.

ClustrixDB does not support mixed-mode usage of multiport. That is, all nodes must uniformly have multiport enabled (default) or disabled, or the nodes will be unable to form a cluster. 

See Modifying Startup Configuration Options for instructions on how to disable multiport, if necessary.

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