Error when running `tiup cluster reload tidb-cluster`

Translated
1

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

Original topic: tiup cluster reload tidb-cluster 报错

| username: TiDBer_bOR8eMEn

[TiDB Usage Environment] Production Environment
[TiDB Version] 5.2.3
tiup cluster reload tidb-cluster error

image
image1380×354 48.4 KB

2
| username: tidb菜鸟一只 | Original post link

Can you manually execute the scp command?

3
| username: TiDBer_bOR8eMEn | Original post link

Manual operation doesn’t work either. I changed the port number to 8822.

4
| username: tidb菜鸟一只 | Original post link

Then you should first use tiup cluster edit-config tidb-cluster to modify your SSH port number…
image
The default is 22, if you don’t change it, it will definitely use 22.

5
| username: Jellybean | Original post link

Manually executing the scp command on the machine also doesn’t work, which indicates that it is unrelated to the TiDB cluster or the tiup tool. The failure of scp execution means that a normal connection cannot be established. You can check the following items:

  • Whether the network from the control machine to the target machine is normal
  • Check for network port issues from the control machine to the target machine
  • Whether the account from the control machine to the target machine has the necessary permissions
6
| username: TiDBer_ZxWlj6A1 | Original post link

Change back the SSH port for testing. Turn off the firewall on each node. Ensure there are no network issues between the control machine and each machine.

7
| username: 友利奈绪 | Original post link

Is the password-free mutual authentication configured correctly without any issues?

8
| username: Kongdom | Original post link

You can refer to the previous solutions:

9
| username: TiDBer_bOR8eMEn | Original post link

I have already changed it.

10
| username: TiDBer_bOR8eMEn | Original post link

I think the main reason is that the default value of the tidb_distsql_scan_concurrency parameter is 15, which is relatively high. You can try reducing this value to see if it helps.

11
| username: TiDBer_bOR8eMEn | Original post link

SSH is not a problem.

12
| username: 小于同学 | Original post link

Is there no problem with the network?

13
| username: TiDBer_bOR8eMEn | Original post link

No problem.

14
| username: TiDBer_bOR8eMEn | Original post link

Modify the file name in this directory to solve the problem. It should be an issue with the configuration file loading.

15
| username: Kongdom | Original post link

Modify the file name in the directory? From what to what? Which user made the modification? Could it be a file permission issue, such as the user executing tiup not having permission for this file?