@Override
    protected void doRetry(final String key, final TimerTask timerTask) {
        try {
            this.doRun(key, timerTask);
        } catch (Throwable ex) {
            logger.warn("Failed to execute,but can be ignored");
        }
    }
Do retry.

@param key       the key
@param timerTask the timer task
shenyu-common/src/main/java/org/apache/shenyu/common/timer/AbstractRoundTask.java