test(dm): add async checkpoint flush integration test

[db-will]

What problem does this PR solve?

Issue Number: ref #4159

What is changed and how it works?

Add integration test for async checkpoint flush to simulate failure of async flush

Check List

Tests

• Integration test

Code changes
None

Side effects
None

Related changes

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• Ehco1996
• lance6716

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

The full list of commands accepted by this bot can be found here.

Reviewer can indicate their review by submitting an approval review.
Reviewer can cancel approval by submitting a request changes review.

[db-will]

/run-integration-test

[GMHDBJD]

Do you have time to look at this issue #3928? I think it may be introduced by async checkpoint

[lance6716]

The newly added integration tests should put its name in dm/tests/others_integration_1.txt or others_integration_2.txt

BTW, what's the detailed scenario this test want to imitate? Failed to async flush checkpoint will not block data replication?

[lance6716]

ping @db-will

[db-will]

yes, cause we don't want to background async flush failure could impact on DM process.

[codecov-commenter]

Codecov Report

Merging #4538 (5ea0ab8) into master (9607554) will increase coverage by 0.1513%.
The diff coverage is 54.6845%.

Flag	Coverage Δ
cdc	59.9740% <54.6845%> (+0.0518%)	⬆️
dm	52.3327% <ø> (+0.3038%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

@@               Coverage Diff                @@
##             master      #4538        +/-   ##
================================================
+ Coverage   55.6402%   55.7915%   +0.1513%     
================================================
  Files           494        521        +27     
  Lines         61283      64732      +3449     
================================================
+ Hits          34098      36115      +2017     
- Misses        23750      25094      +1344     
- Partials       3435       3523        +88     

[Ehco1996]

LGTM

[Ehco1996]

/run-dm-integration-tests

[lance6716]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: dbcf9eb

[lance6716]

/merge