code: private void handleChangeConfigurationRequest(final int executorId, final String actionName,
        final HttpServletRequest req, final HashMap<String, Object> ret)
        throws ServletException, IOException {
      try {
        final Map<String, Object> result =
            this.execManagerAdapter
                .callExecutorStats(executorId, actionName, getAllParams(req));
        if (result.containsKey(ConnectorParams.RESPONSE_ERROR)) {
          ret.put(ConnectorParams.RESPONSE_ERROR,
              result.get(ConnectorParams.RESPONSE_ERROR).toString());
        } else {
          ret.put(ConnectorParams.STATUS_PARAM,
              result.get(ConnectorParams.STATUS_PARAM));
        }
      } catch (final ExecutorManagerException ex) {
        logger.error(ex.getMessage(), ex);
        ret.put("error", "Failed to change config change");
      }
    }
docs: Generic method to facilitate actionName action using Azkaban exec server
  
  @param actionName Name of the action