DNM A demo shows removing check_snapshot will cause region overlap

[CalvinNeo]

What is changed and how it works?

Issue Number: Close #xxx

What's Changed:

Related changes

• PR to update pingcap/docs/pingcap/docs-cn:
• Need to cherry-pick to the release branch

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Release note

[CalvinNeo]

test_apply_before_snapshot 2024/08/19 16:24:57.212 peer.rs:3540: [INFO] region overlapped, snap: id: 1 region_epoch { conf_ver: 2 version: 2 } peers { id: 1 store_id: 1 } peers { id: 1112 store_id: 2 role: Learner }, exist: id: 1000 end_key: 6B32 region_epoch { conf_ver: 2 version: 2 } peers { id: 1001 store_id: 1 } peers { id: 1002 store_id: 2 role: Learner }, peer_id: 1112, region_id: 1, thread_id: 73

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please ask for approval from calvinneo, ensuring that each of them provides their approval before proceeding. For more information see the Code Review Process.

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

Details

Needs approval from an approver in each of these files:

• HACKED_OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ti-chi-bot]

@CalvinNeo: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-unit-test	60bcd15	link	true	/test pull-unit-test

Full PR test history. Your PR dashboard.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.