explaintest: Support concurrent execution

[Defined2014]

What problem does this PR solve?

Issue Number: ref #45961

Problem Summary:

What is changed and how it works?

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

Documentation

• [ ] Affects user behaviors
• [ ] Contains syntax changes
• [ ] Contains variable changes
• [ ] Contains experimental features
• [ ] Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[tiprow[bot]]

Hi @Defined2014. Thanks for your PR.

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 73.3875%. Comparing base (7e476a5) to head (83f7c57). Report is 4080 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #46346        +/-   ##
================================================
+ Coverage   73.3517%   73.3875%   +0.0358%     
================================================
  Files          1284       1288         +4     
  Lines        393256     393523       +267     
================================================
+ Hits         288460     288797       +337     
+ Misses        86433      86343        -90     
- Partials      18363      18383        +20     

Flag	Coverage Δ
unit	73.3875% <ø> (+0.0358%)	:arrow_up:

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

Components	Coverage Δ
dumpling	54.0444% <ø> (ø)
parser	85.0741% <ø> (+0.0073%)	:arrow_up:
br	52.2684% <ø> (+0.0281%)	:arrow_up:

[Defined2014]

Seems running tests in parallel, the execution plan is not very stable, so close this one.

[ti-chi-bot[bot]]

PR needs rebase.

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[ti-chi-bot[bot]]

@Defined2014: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
idc-jenkins-ci-tidb/build	83f7c57380f7cd0f8affb2b663716b4b5e367e41	link	true	/test build
idc-jenkins-ci-tidb/mysql-test	83f7c57380f7cd0f8affb2b663716b4b5e367e41	link	true	/test mysql-test
idc-jenkins-ci-tidb/check_dev_2	83f7c57380f7cd0f8affb2b663716b4b5e367e41	link	true	/test check-dev2
idc-jenkins-ci-tidb/check_dev	83f7c57380f7cd0f8affb2b663716b4b5e367e41	link	true	/test check-dev
pull-mysql-client-test	83f7c57380f7cd0f8affb2b663716b4b5e367e41	link	true	/test pull-mysql-client-test
pull-integration-ddl-test	83f7c57380f7cd0f8affb2b663716b4b5e367e41	link	true	/test pull-integration-ddl-test
idc-jenkins-ci-tidb/unit-test	83f7c57380f7cd0f8affb2b663716b4b5e367e41	link	true	/test unit-test
pull-br-integration-test	83f7c57380f7cd0f8affb2b663716b4b5e367e41	link	true	/test pull-br-integration-test
pull-lightning-integration-test	83f7c57380f7cd0f8affb2b663716b4b5e367e41	link	true	/test pull-lightning-integration-test
pull-integration-e2e-test	83f7c57380f7cd0f8affb2b663716b4b5e367e41	link	true	/test pull-integration-e2e-test

Full PR test history. Your PR dashboard.

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