pkg: use minimum interface for schedulers

[rleungx]

What problem does this PR solve?

Issue Number: Ref #5839.

What is changed and how does it work?

This PR relies on #6551, please review it after #6551 is merged.

It introduces a minimum interface for schedulers. Once all functions within this interface are implemented, we can run the schedulers.

Check List

Tests

• Unit test

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lhy1024
• nolouch

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[codecov]

Codecov Report

Patch coverage: 73.68% and project coverage change: +0.03 🎉

Comparison is base (f290e66) 74.66% compared to head (9592b12) 74.69%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6553      +/-   ##
==========================================
+ Coverage   74.66%   74.69%   +0.03%     
==========================================
  Files         417      417              
  Lines       42694    42693       -1     
==========================================
+ Hits        31876    31891      +15     
+ Misses       8007     7995      -12     
+ Partials     2811     2807       -4     

Flag	Coverage Δ
unittests	74.69% <73.68%> (+0.03%)	⬆️

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

Impacted Files	Coverage Δ
pkg/mock/mockcluster/mockcluster.go	93.83% <ø> (+0.20%)	⬆️
pkg/schedule/checker/merge_checker.go	70.99% <ø> (ø)
pkg/schedule/config/config.go	33.33% <ø> (ø)
pkg/schedule/filter/healthy.go	100.00% <ø> (ø)
pkg/schedule/filter/region_filters.go	86.79% <ø> (ø)
pkg/schedule/operator/create_operator.go	91.77% <ø> (ø)
pkg/schedule/schedulers/balance_region.go	88.02% <ø> (ø)
pkg/schedule/schedulers/balance_witness.go	66.86% <ø> (ø)
pkg/schedule/schedulers/evict_leader.go	81.28% <ø> (-0.99%)	⬇️
pkg/schedule/schedulers/evict_slow_store.go	75.90% <ø> (ø)
... and 20 more

... and 31 files with indirect coverage changes

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[lhy1024]

sche.ScheduleCluster reads like a stutter

[rleungx]

/merge

[rleungx]

/merge

[ti-chi-bot]

@rleungx: It seems you want to merge this PR, I will help you trigger all the tests:

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[ti-chi-bot]

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

Details

Commit hash: 84beac2a4535a9c21176f7a7fab3ff3ddc20e0cc

[ti-chi-bot]

@rleungx: Your PR was out of date, I have automatically updated it for you.

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[rleungx]

/merge

[ti-chi-bot]

@rleungx: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and if the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

If you have any questions about the PR merge process, please refer to pr process.

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 ti-community-infra/tichi repository.

[ti-chi-bot]

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

Details

Commit hash: 9592b12