code: private void handleChangeManagerStatusRequest(final HttpServletRequest req,
        final Map<String, Object> ret, final boolean enableMetricManager) {
      try {
        logger.info("Updating metric manager status");
        if ((enableMetricManager && MetricReportManager.isInstantiated())
            || MetricReportManager.isAvailable()) {
          final MetricReportManager metricManager = MetricReportManager.getInstance();
          if (enableMetricManager) {
            metricManager.enableManager();
          } else {
            metricManager.disableManager();
          }
          ret.put(STATUS_PARAM, RESPONSE_SUCCESS);
        } else {
          ret.put(RESPONSE_ERROR, "MetricManager is not available");
        }
      } catch (final Exception e) {
        logger.error(e);
        ret.put(RESPONSE_ERROR, e.getMessage());
      }
    }
docs: enable or disable metric Manager A disable will also purge all data from all metric emitters