tidb restart with error log “[FATAL] [job_table.go:366] ["dispatch loop get cluster state failed, it should not happen, please try restart TiDB"]”

[Lily2025]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

1、run sysbench mussel
2、inject pd leader io delay 500ms

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

tidb is normal

3. What did you see instead (Required)

tidb restart with error log “[FATAL] [job_table.go:366] ["dispatch loop get cluster state failed, it should not happen, please try restart TiDB"]”

[2024/06/03 12:42:37.820 +08:00] [FATAL] [job_table.go:366] ["dispatch loop get cluster state failed, it should not happen, please try restart TiDB"] [category=ddl] [error="context canceled"] [stack="github.com/pingcap/tidb/pkg/ddl.(*jobScheduler).startDispatchLoop\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/ddl/job_table.go:366\ngithub.com/pingcap/tidb/pkg/util.(*WaitGroupWrapper).RunWithLog.func1\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/util/wait_group_wrapper.go:171"]

4. What is your TiDB version? (Required)

./tidb-server -V
Release Version: v8.2.0-alpha
Edition: Community
Git Commit Hash: 8483dc5
Git Branch: heads/refs/tags/v8.2.0-alpha
UTC Build Time: 2024-06-02 11:45:42
GoVersion: go1.21.10
Race Enabled: false
Check Table Before Drop: false
Store: unistore
2024-06-03T12:32:12.769+0800

[Lily2025]

/severity major

[tangenta]

Related to #53548.