kvclient panic when kill pd leader during br backup #54848
Labels
affects-6.5
This bug affects the 6.5.x(LTS) versions.
affects-7.1
This bug affects the 7.1.x(LTS) versions.
affects-7.5
This bug affects the 7.5.x(LTS) versions.
affects-8.1
This bug affects the 8.1.x(LTS) versions.
impact/panic
severity/major
sig/transaction
SIG:Transaction
type/bug
The issue is confirmed as a bug.
Bug Report
Related Issue: tikv/client-go#1357
Please answer these questions before submitting your issue. Thanks!
1. Minimal reproduce step (Required)
1、run br backup
2、kill pd leader
3、br backup failed
`panic: close of closed channel
goroutine 2822 [running]:
github.com/tikv/client-go/v2/internal/client.(*batchConn).Close(...)
/root/go/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240528025037-f41b068bf706/internal/client/client_batch.go:769
github.com/tikv/client-go/v2/internal/client.(*connArray).Close(0xc0004bb560)
/root/go/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240528025037-f41b068bf706/internal/client/client.go:330 +0xf6
github.com/tikv/client-go/v2/internal/client.(*RPCClient).CloseAddr(0xc0007e3680, {0xc000f7e7d0, 0x44})
/root/go/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240528025037-f41b068bf706/internal/client/client.go:797 +0x1e5
github.com/tikv/client-go/v2/internal/client.(*RPCClient).recycleIdleConnArray(0xc0007e3680)
/root/go/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240528025037-f41b068bf706/internal/client/client_batch.go:835 +0x1f7
created by github.com/tikv/client-go/v2/internal/client.(*RPCClient).sendRequest in goroutine 2821
/root/go/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240528025037-f41b068bf706/internal/client/client.go:587 +0x34b`
tidb version:
./tidb-server -V
Release Version: v7.5.2
Edition: Community
Git Commit Hash: 39ea2b3
Git Branch: HEAD
UTC Build Time: 2024-05-29 15:07:12
GoVersion: go1.21.10
Race Enabled: false
Check Table Before Drop: false
Store: unistore
2024-05-30T14:14:32.686+0800
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