unstable test testSerialSuite.TestTiDBLastTxnInfoCommitMode

[zhouqiang-cl]

Bug Report

[2021-06-03T16:39:02.989Z] 
[2021-06-03T16:39:02.989Z] ----------------------------------------------------------------------
[2021-06-03T16:39:02.989Z] FAIL: executor_test.go:3022: testSerialSuite.TestTiDBLastTxnInfoCommitMode
[2021-06-03T16:39:02.989Z] 
[2021-06-03T16:39:02.989Z] [["async_commit" false false]]
[2021-06-03T16:39:02.989Z] [["async_commit" false false]]
[2021-06-03T16:39:02.989Z] executor_test.go:3068:
[2021-06-03T16:39:02.989Z]     c.Assert(rows[0][0], Equals, `"2pc"`)
[2021-06-03T16:39:02.989Z] ... obtained string = "\"async_commit\""
[2021-06-03T16:39:02.989Z] ... expected string = "\"2pc\""

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

in ci https://ci.pingcap.net/blue/organizations/jenkins/tidb-unit-test-nightly/detail/tidb-unit-test-nightly/87/pipeline/18

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

3. What did you see instead (Required)

4. What is your TiDB version? (Required)

releasse-5.0 0ecd6bd

[bb7133]

This issue expects the backport of #24779.

/cc @MyonKeminta

[MyonKeminta]

The cherrypick to 5.0 was merged

[ti-srebot]

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