mcs: make compatible with cluster info page display

[lhy1024]

What problem does this PR solve?

Issue Number: Close #7928

What is changed and how does it work?

Check List

Tests

• Unit test

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

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• CabinfeverB
• HuSharp

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[lhy1024]

Before

After

[HuSharp]

/build

[lhy1024]

/merge

[ti-chi-bot]

@lhy1024: 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.

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[ti-chi-bot]

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

Commit hash: 6d95602

[lhy1024]

/test rebuild

[ti-chi-bot]

@lhy1024: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

• /test build

The following commands are available to trigger optional jobs:

• /test pull-integration-copr-test
• /test pull-integration-realcluster-test

Use /test all to run the following jobs that were automatically triggered:

• tikv/pd/ghpr_build

In response to this:

/test rebuild

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[lhy1024]

/test build

[codecov]

Codecov Report

Merging #7929 (6d95602) into master (da3b6e3) will decrease coverage by 0.07%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7929      +/-   ##
==========================================
- Coverage   73.54%   73.47%   -0.07%     
==========================================
  Files         436      436              
  Lines       48349    48349              
==========================================
- Hits        35558    35525      -33     
- Misses       9731     9756      +25     
- Partials     3060     3068       +8     

Flag	Coverage Δ
unittests	73.47% <0.00%> (-0.07%)	⬇️

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

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.0: #7938.