br: Fine grained backup may fall into infinite retry
Open
affects-6.5
affects-7.1
affects-7.5
affects-8.1
component/br
may-affects-5.4
may-affects-6.1
may-affects-8.5
severity/major
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)
Runs a backup, when it enter the fine grained stage, if there is a issue that make some tikv disconnect with br, br may fall into infinite retry to reset client.
### 2. What did you expect to see? (Required)
Backup could fast fail and exit.
### 3. What did you see instead (Required)
It kept retrying.
### 4. What is your TiDB version? (Required)
v.7.1
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Assessment
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