private TEndPoint getFollowerUrl() {
    // In current pipeConsensus design, one connector corresponds to one follower, so the peers is
    // actually a singleton list
    return peers.get(0);
  }
This connector is used for PipeConsensus to transfer queued event.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/connector/protocol/pipeconsensus/PipeConsensusSyncConnector.java