Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.Original topic: pd节点扩缩容后，清除老的pd节点down的告警
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username: chenhanneu
[TiDB Usage Environment] Production Environment / Testing / PoC
[TiDB Version]
[Reproduction Path] What operations were performed when the issue occurred
[Encountered Issue: Issue Phenomenon and Impact]
[Resource Configuration] Enter TiDB Dashboard - Cluster Info - Hosts and take a screenshot of this page
[Attachments: Screenshots/Logs/Monitoring]
Expanded a PD node and then scaled down the old PD node, continuously receiving the alert [EMERGENCY] PD server is down.
The scaled-down value of 0 line still exists and does not automatically disappear. Is there a command to manually clear it?