@Override
  public ReportRSFatalErrorResponse reportRSFatalError(RpcController controller,
    ReportRSFatalErrorRequest request) throws ServiceException {
    String errorText = request.getErrorMessage();
    ServerName sn = ProtobufUtil.toServerName(request.getServer());
    String msg = sn + " reported a fatal error:\n" + errorText;
    LOG.warn(msg);
    server.rsFatals.add(msg);
    return ReportRSFatalErrorResponse.newBuilder().build();
  }
Returns list of blocking services and their security info classes that this server supports
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java