adding index was stuck on ticdc changefeed downstream

[Lily2025]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

1、restore data for primary and secondary
2、create changefeed and set bdr role for primary and secondary
3、run sysbench on primary and secondary
4、drop index after add index finished on primary

tidb logs：
tidb-1.tar.gz

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

add index can success both on upstream and downstream

3. What did you see instead (Required)

adding index was stuck on ticdc changefeed downstream

tidb was always printing this log：
[2024/03/01 11:54:59.208 +08:00] [INFO] [reorg.go:264] ["run reorg job wait timeout"] [category=ddl] ["wait time"=5s] ["total added row count"=0]

4. What is your TiDB version? (Required)

./tidb-server -V
Release Version: v8.0.0-alpha
Edition: Community
Git Commit Hash: dc1c410
Git Branch: heads/refs/tags/v8.0.0-alpha
UTC Build Time: 2024-02-27 11:47:45
GoVersion: go1.21.6
Race Enabled: false
Check Table Before Drop: false
Store: unistore

[Lily2025]

/assign tangenta

[Lily2025]

/severity critical

[okJiang]

hostname has been truncated.