/**
     * Update the configuration.
     */
    public void update() {
        CommonPoolUtil.execute(this::load);
    }

    /**
     * Wait for the next reloading.
     */
    protected void waitForNext() {
        if (reloadInterval > 0) {
            ThreadUtil.sleep(reloadInterval);
        }
    }

    /**
     * Load the configuration.
     * @return The number of loaded configurations.
     */

                } else if (logger.isDebugEnabled()) {
                    logger.debug("No KeyMatch boost docs");
                }

                waitForNext();
            } catch (final Exception e) {
                logger.warn("Failed to load KeyMatch: id={}, term={}", keyMatch.getId(), keyMatch.getTerm(), e);
            }
        });