tikv rolling restart stuck due to residual leader

[Lily2025]

Bug Report

What did you do?

1、run workload or br restore data
2、tikv rolling restart

What did you expect to see?

tikv rolling restart can success

What did you see instead?

tikv rolling restart stuck due to residual leader

What version of PD are you using (pd-server -V)?

./pd-server -V
Release Version: v8.2.0-alpha
Edition: Community
Git Commit Hash: 50c8040
Git Branch: heads/refs/tags/v8.2.0-alpha
UTC Build Time: 2024-04-26 11:37:53

[Lily2025]

/type bug
/severity major
/assign lhy1024

[lhy1024]

it is introduced by #8052, which only effects master.

we can found that the residual leader is evicted after it happened merge, which updates its status in pd.

it is closed by #8131

I tests with newest master, which is normal