Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

• injest io delay for pd to 500ms
• run import into

2. What did you expect to see? (Required)

import suceesfully

3. What did you see instead (Required)

[2023/10/29 15:09:20.345 +08:00] [WARN] [pd.go:996] ["failed to create or update region label rule, will try next pd address"] [error="[503] no leader\n http://tc-pd-2.tc-pd-peer.endless-ha-test-import-into-tps-3570925-1-409.svc:2379/pd/api/v1/config/region-label/rule: [BR:PD:ErrPDInvalidResponse]PD invalid response"] [pdAddr=http://tc-pd-2.tc-pd-peer.endless-ha-test-import-into-tps-3570925-1-409.svc:2379]

4. What is your TiDB version? (Required)

master