PD Login Error: "Login Failed: Unable to Connect to TiDB"

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Original topic: pd登录报错”登录失败: 无法连接到 TiDB”

| username: xiaogangfighting

  1. TiDB Version: v4.0.0
  2. I have newly expanded two TiDB instances. Then I executed tiup cluster scale-in tidb-sync-ali to scale in the original TiDB, and then the original TiDB machine was shut down and taken offline.
  3. PD error: [2022/07/15 11:37:58.893 +08:00] [WARN] [proxy.go:120] [“no alive remote, drop incoming conn”]
    [mysql] 2022/07/15 11:37:58 packets.go:36: unexpected EOF
| username: xiaogangfighting | Original post link

tiup ctl:v4.0.0 pd -u http://1111:2379 config set dashboard-address http://111111:2379

| username: xiaogangfighting | Original post link

Execute this, and switch to another PD dashboard.

| username: system | Original post link

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