Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.Original topic: tiup 缩容 hang 死
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username: GreenGuan
tiup version v1.15.2
Background: Since TiDB and PD are on the same node, when that node fails (memory), both PD and TiDB cannot provide services, but the SSH network is accessible.
Phenomenon: tiup cluster scale-in xxx -N tidb --force gets stuck.
Solution: Shut down the problematic node, --force succeeds.
Suggestion: When the network is accessible, it will perform a check. When it cannot connect, it should clearly give an i/o timeout. --force should be an optional parameter during network checks, not a mandatory one.