How to deal with `cannot pull system configurations` error in cluster deployment of Apache IoTDB?

I deployed a cluster version of Apache IoTDB and the system popped out an error, the information was ERROR o.a.i.db.service.DataNode: 258 - Cannot pull system configurations from ConfigNode-leader after 10 retries. Does anyone know what this error means and how can I deal with it?

Solution

It seems that the ConfigNode in Apache IoTDB has failed to start. You can check whether the ports starting with cn (which means ConfigNode) are already occupied, and switch these occupied ports to solve this error.

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