Failed to Log in to TiDB Dashboard: No Running TiDB Instances, How to Handle This Situation

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

Original topic: 访问 TiDB Dashboard显示登录失败: 没有正在运行的 tidb 实例，请问这种情况如何处理

| username: TiDBer_vJpITQ5J

Login failed: No running TiDB instance

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| username: h5n1 | Original post link

Check the cluster status using tiup cluster display.

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| username: TiDBer_vJpITQ5J | Original post link

The 4000 port shows down when using tiup cluster display in the production environment.

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| username: h5n1 | Original post link

It went down, is there only one TiDB server? The dashboard login uses TiDB’s internal user information for verification.

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| username: TiDBer_vJpITQ5J | Original post link

Single-node deployment with different port clusters

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| username: gary | Original post link

When the TiDB server is down, you need to bring the TiDB server up to log in. If the TiDB server cannot start, you need to check the tidb.log to see the specific error information.