Ports required for Apache Ignite Cluster

Question

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I am building Ignite cluster. Observed that intercommunication between nodes require multiple ports to be opened.

So far, I opene

Answer 1

It's all configurable, so this is only true if you've not changed any of the defaults and only have one node running per machine, but: 10800 (JDBC/ODBC), 11211 (TCP connector), 47100 (listener), 47500 (discovery). As Denis notes, you only really need the last two but that depends on your application.