Urgent! The master control node and the master node machine are broken. After installing the new machine, it cannot be restored, and the original cluster name is forgotten! Seeking help from experts and official staff, unable to recover

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This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: 急!主控节点和主节点机器坏了,新机器装好后无法恢复,并且忘记原集群名称！求助大姥和官方工作人员,无法恢复

| username: 点点-求助来了

[TiDB Usage Environment] Production Environment
[TiDB Version] 5.0.1
[Encountered Problem]
[Reproduction Path] What operations were performed that led to the problem
[Problem Phenomenon and Impact]

Problem
Problem1336×1000 241 KB

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| username: tidb狂热爱好者 | Original post link

If you understand the physical architecture, you can fix it. Get a batch of machines and redeploy them with the same IP and users. Just copy it over and it will work. If you don’t understand the physical architecture, then you’ll just be left staring blankly.

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| username: 点点-求助来了 | Original post link

For production environments, the physical architecture is definitely known. Currently, the main control node cannot be started and reports an error as mentioned above. It is suspected that the original cluster name used for the startup needs to be known.

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| username: xfworld | Original post link

Is the tiup environment lost?

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| username: 啦啦啦啦啦 | Original post link

The monitoring is still there, check the cluster name over there.

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| username: 点点-求助来了 | Original post link

Lost it, reinstalled it.

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| username: 点点-求助来了 | Original post link

This is the monitoring. Where is the cluster name? I don’t seem to see it.

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| username: xfworld | Original post link

Search asktug, there are related solutions.

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| username: Kongdom | Original post link

Sorry, I can’t access external links. Please provide the text you need translated.

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| username: 点点-求助来了 | Original post link

I don’t know the name of the old cluster, and I can’t get it through .tiup to query the list.

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| username: Kongdom | Original post link

Can’t you find the method provided in the documentation either?

image
image718×163 7.99 KB

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| username: 点点-求助来了 | Original post link

/.tiup/storage/cluster/clusters is for the control node. My control node machine broke down, and I replaced it with a new one. I couldn’t find a way to query cluster information using SQL on Baidu. If I can find the cluster information on the child nodes, the control node of this cluster can be restored.

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| username: 啦啦啦啦啦 | Original post link

This is the dashboard, check the monitoring section, Grafana.

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| username: 点点-求助来了 | Original post link

The Grafana node is broken.

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| username: 近墨者zyl | Original post link

Call the original manufacturer service.

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| username: 啦啦啦啦啦 | Original post link

I looked at the error you mentioned above, and it has nothing to do with the cluster name. You missed passing a parameter.
Error: Expect at least 3 arguments, but received 2 arguments (tui.mismatch_args)

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| username: 啦啦啦啦啦 | Original post link

The cluster version is not specified. Try adding it and see if it works.

tiup cluster deploy <cluster-name> <version> <topology.yaml>

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| username: system | Original post link

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