Unstable test TestCreateUniqueIndex

[zimulala]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

https://do.pingcap.net/jenkins/blue/organizations/jenkins/pingcap%2Ftidb%2Frelease-7.1%2Fghpr_check2/detail/ghpr_check2/625/pipeline/298/

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

Pass TestCreateUniqueIndex

3. What did you see instead (Required)

[2023/07/12 15:26:56.053 +08:00] [WARN] [session.go:2253] ["run statement failed"] [schemaVersion=362] [error="[ddl:8214]Cancelled DDL job"] [errorVerbose="[ddl:8214]Cancelled DDL job\ngithub.com/pingcap/errors.AddStack\n\texternal/com_github_pingcap_errors/errors.go:174\ngithub.com/pingcap/errors.Trace\n\texternal/com_github_pingcap_errors/juju_adaptor.go:15\ngithub.com/pingcap/tidb/ddl.(*ddl).DoDDLJob\n\tddl/ddl.go:1164\ngithub.com/pingcap/tidb/ddl.(*ddl).createIndex\n\tddl/ddl_api.go:6816\ngithub.com/pingcap/tidb/ddl.(*ddl).AlterTable\n\tddl/ddl_api.go:3426\ngithub.com/pingcap/tidb/executor.(*DDLExec).executeAlterTable\n\texecutor/ddl.go:384\ngithub.com/pingcap/tidb/executor.(*DDLExec).Next\n\texecutor/ddl.go:148\ngithub.com/pingcap/tidb/executor.Next\n\texecutor/executor.go:326\ngithub.com/pingcap/tidb/executor.(*ExecStmt).next\n\texecutor/adapter.go:1202\ngithub.com/pingcap/tidb/executor.(*ExecStmt).handleNoDelayExecutor\n\texecutor/adapter.go:947\ngithub.com/pingcap/tidb/executor.(*ExecStmt).handleNoDelay\n\texecutor/adapter.go:773\ngithub.com/pingcap/tidb/executor.(*ExecStmt).Exec\n\texecutor/adapter.go:568\ngithub.com/pingcap/tidb/session.runStmt\n\tsession/session.go:2384\ngithub.com/pingcap/tidb/session.(*session).ExecuteStmt\n\tsession/session.go:2241\ngithub.com/pingcap/tidb/testkit.(*TestKit).ExecWithContext\n\ttestkit/testkit.go:324\ngithub.com/pingcap/tidb/testkit.(*TestKit).Exec\n\ttestkit/testkit.go:297\ngithub.com/pingcap/tidb/tests/realtikvtest/addindextest.createIndexOneCol\n\ttests/realtikvtest/addindextest/common.go:249\ngithub.com/pingcap/tidb/tests/realtikvtest/addindextest.addIndexUnique\n\ttests/realtikvtest/addindextest/common.go:465\ngithub.com/pingcap/tidb/tests/realtikvtest/addindextest.testOneColFrame\n\ttests/realtikvtest/addindextest/common.go:358\ngithub.com/pingcap/tidb/tests/realtikvtest/addindextest.TestCreateUniqueIndex\n\ttests/realtikvtest/addindextest/add_index_test.go:66\ntesting.tRunner\n\tGOROOT/src/testing/testing.go:1576\nruntime.goexit\n\tsrc/runtime/asm_amd64.s:1598"] [session="{\n  \"currDBName\": \"addindex\",\n  \"id\": 85,\n  \"status\": 2,\n  \"strictMode\": true,\n  \"user\": null\n}"]
    common.go:253:
        	Error Trace:	tests/realtikvtest/addindextest/common.go:253
        	            				tests/realtikvtest/addindextest/common.go:465
        	            				tests/realtikvtest/addindextest/common.go:358
        	            				tests/realtikvtest/addindextest/add_index_test.go:66
        	Error:      	"[ddl:8214]Cancelled DDL job" does not contain "Duplicate entry"
        	Test:       	TestCreateUniqueIndex

4. What is your TiDB version? (Required)

v7.1
PR: #44242