code: @GET
    @Path("/loadStatus")
    @Produces(MediaType.APPLICATION_JSON)
    @Consumes(MediaType.APPLICATION_JSON)
    @ResourceFilters(BasicSecurityResourceFilter.class)
    public Response getLoadStatus(
        @Context HttpServletRequest req
    )
    {
      return handler.getLoadStatus();
    }
docs: @param req HTTP request
  
  @return Load status of authenticator DB caches