lightning: meet 'access deny' when using downstream to save checkpoint
Open
component/lightning
severity/minor
type/bug
- Dominant language
- Go
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Description
## Bug Report
Please answer these questions before submitting your issue. Thanks!
### 1. Minimal reproduce step (Required)
lightning use ssl to access downstream DB and save checkpoint
### 2. What did you expect to see? (Required)
checkpoints have been saved to downstream DB
### 3. What did you see instead (Required)
```
[Lightning:Checkpoint:ErrOpenCheckpoint]open checkpoint error: Error 1045 (28000): Access denied for user 'dm_user'@'192.168.48.1' (using password: NO)"
```
### 4. What is your TiDB version? (Required)
Contributor guide
Assessment
This issue has not been assessed yet.