A component hangs, tiup shows the component as down, but monitoring does not report it

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Original topic: 某个组件hang住,tiup查看时,组件显示down,监控并没有报

| username: 小鱼吃大鱼

During anomaly testing, after testing a component that hangs, using tiup to check the status shows that it is already down, but the alarm is not triggered. In this case, is there any corresponding monitoring in place?