changefeed lag reached 556s when inject network partition between one of ticdc and pd leader last for 10mins

[Lily2025]

What did you do?

1、create changefeed
2、run sysbench
3、inject network partition between one of ticdc and pd leader last for 10mins

What did you expect to see?

No response

What did you see instead?

changefeed lag reached 556s

Versions of the cluster

./cdc version
Release Version: v8.0.0
Git Commit Hash: ba58ef9
Git Branch: HEAD
UTC Build Time: 2024-03-19 08:07:03
Go Version: go version go

current status of DM cluster (execute query-status <task-name> in dmctl)

No response

[Lily2025]

/type enhancement

[Lily2025]

/remove-area dm
/area ticdc

[flowbehappy]

This issue is by designed. @asddongmen will see whether it can be addressed by etcd-io/etcd#17465 (comment). If not, then I suggest we address it in long term.

[fubinzh]

/severity moderate