disttask: print total count in log (#56759)

[ti-chi-bot]

This is an automated cherry-pick of #56759

What problem does this PR solve?

Issue Number: ref #56733

Problem Summary:

What changed and how does it work?

as title

Check List

Tests

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

  • I checked and no code files have been changed.

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]

This cherry pick PR is for a release branch and has not yet been approved by triage owners.
Adding the do-not-merge/cherry-pick-not-approved label.

To merge this cherry pick:

1. It must be approved by the approvers firstly.
2. AFTER it has been approved by approvers, please wait for the cherry-pick merging approval from triage owners.

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[CbcWestwolf]

/retest

[codecov]

Codecov Report

Attention: Patch coverage is 34.78261% with 15 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.1@207b06b). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-8.1     #58713   +/-   ##
================================================
  Coverage               ?   71.2068%           
================================================
  Files                  ?       1468           
  Lines                  ?     423833           
  Branches               ?          0           
================================================
  Hits                   ?     301798           
  Misses                 ?     101505           
  Partials               ?      20530           

Flag	Coverage Δ
unit	71.2068% <34.7826%> (?)

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

Components	Coverage Δ
dumpling	52.9656% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	41.2222% <0.0000%> (?)

[lance6716]

/cc @D3Hunter

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: D3Hunter, lance6716
Once this PR has been reviewed and has the lgtm label, please assign ywqzzy for approval. For more information see the Code Review Process.

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-01-07 07:53:22.310068297 +0000 UTC m=+253745.598900003: ☑️ agreed by lance6716.
• 2025-01-07 10:58:32.086345939 +0000 UTC m=+264855.375177641: ☑️ agreed by D3Hunter.