@Override
  @QosPriority(priority = HConstants.ADMIN_QOS)
  public GetServerInfoResponse getServerInfo(final RpcController controller,
    final GetServerInfoRequest request) throws ServiceException {
    try {
      checkOpen();
    } catch (IOException ie) {
      throw new ServiceException(ie);
    }
    requestCount.increment();
    int infoPort = server.getInfoServer() != null ? server.getInfoServer().getPort() : -1;
    return ResponseConverter.buildGetServerInfoResponse(server.getServerName(), infoPort);
  }
Get some information of the region server.
@param controller the RPC controller
@param request    the request
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java