Lightning ERROR "["startKey > endKey when paginating scan region"] [startKey=7480000000000307FFB85F720000000000FF0000000000000000FA] [endKey=7480000000000307FFB85F720000000000FF0000000000000000FA]"

[Tammyxia]

Please answer these questions before submitting your issue. Thanks!

1. What did you do?
   If possible, provide a recipe for reproducing the error.

• Edit lightning.toml:

• Import data "tiup tidb-lightning -config lightning.toml"
• KV region-split-size set to 20MB, region-max-size set to 30MB.
• Before lightning importing, some tables already existed in TiDB.

2. What did you expect to see?

3. What did you see instead?

When lightning importing, some tables has error "["startKey > endKey when paginating scan region"

4. What version of BR and TiDB/TiKV/PD are you using?

br -V
tidb-lightning -V
5.1.0
tidb-server -V
5.1.0
tikv-server -V
5.1.0
pd-server -V
5.1.0
-->

5. Operation logs

   • Please upload br.log for BR if possible
   • Please upload tidb-lightning.log for TiDB-Lightning if possible
   • Please upload tikv-importer.log from TiKV-Importer if possible
   • Other interesting logs

6. Configuration of the cluster and the task

   • tidb-lightning.toml for TiDB-Lightning if possible
   • tikv-importer.toml for TiKV-Importer if possible
   • topology.yml if deployed by TiUP

7. Screenshot/exported-PDF of Grafana dashboard or metrics' graph in Prometheus if possible