add index blocked after injection tikv io delay 500ms

[Lily2025]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

1、run sysbench
2、add index for one table
3、injection tikv io delay 500ms

tidb-0.zip

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

add index can success

3. What did you see instead (Required)

add index blocked after injection tikv io delay 500ms

the status of ddl job is not synced after 1h0m0s (now: 2024-09-12 06:32:52, jobId: 570, job type: add index /* ingest /, state: running)
operatorLogs:
[2024-09-12 05:32:35] ###### start adding index
ALTER TABLE sbtest1 ADD INDEX index_test_1726090355629(c)
[2024-09-12 05:32:35] ###### wait for ddl job finish
[2024-09-12 06:32:52] ###### wait for ddl job finish timeout(1h0m0s)
select job_id, db_name, table_name, job_type, create_time, start_time, end_time, state, query from information_schema.ddl_jobs where query = 'ALTER TABLE sbtest1 ADD INDEX index_test_1726090355629(c)'
jobId: 570, job type: add index / ingest */, state: running

4. What is your TiDB version? (Required)

./tidb-server -V
Release Version: v6.5.11
Edition: Community
Git Commit Hash: 1097ba8
Git Branch: HEAD
UTC Build Time: 2024-09-10 17:31:13
GoVersion: go1.19.13
Race Enabled: false
TiKV Min Version: 6.2.0-alpha
Check Table Before Drop: false
Store: unistore
2024-09-12T05:32:27.395+0800

[Lily2025]

/assign cbcwestwolf

[Lily2025]

/severity major