Xinyu Tan created IOTDB-3570:
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Summary: Extend the Peer structure of the consensus layer to embed
the ID of the upper layer
Key: IOTDB-3570
URL: https://issues.apache.org/jira/browse/IOTDB-3570
Project: Apache IoTDB
Issue Type: Improvement
Reporter: Xinyu Tan
Currently, the Peer returned by the getLeader interface only contains the IP
address and port corresponding to the consensus layer of the Leader node.
However, the port that the upper layer wants to obtain may be the service port
that the upper layer RPC can connect to, such as internalService, etc.
Therefore, we can consider extending the structure of the Peer so that it can
be packed with a business custom ID structure, so that the upper layer can be
returned at getLeader with the ID with business semantics defined for each Peer
at AddConsensusGroup, thus reducing the coding burden on the upper layer. For
example, DataNode can encode the TEndpoint of internalService into the ID
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