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restore: set tidb_scatter_region to global before tables creation #57715

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@3pointer 3pointer commented Nov 26, 2024

What problem does this PR solve?

Issue Number: close #57596

Problem Summary:
Empty tables cannot scatter after table creations during restore.

What changed and how does it work?

After v8.4 we can set tidb_scatter_region to global to trigger the scatter regions after table created.

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.

Support scatter empty tables after restore.

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ti-chi-bot bot commented Nov 26, 2024

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

@ti-chi-bot ti-chi-bot bot added do-not-merge/needs-linked-issue do-not-merge/needs-tests-checked release-note Denotes a PR that will be considered when it comes time to generate release notes. do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. labels Nov 26, 2024
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[APPROVALNOTIFIER] This PR is NOT APPROVED

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@ti-chi-bot ti-chi-bot bot added the size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. label Nov 26, 2024
@3pointer 3pointer changed the title set tidb_scatter_region to global before restore tables creation restore: set tidb_scatter_region to global before restore tables creation Nov 26, 2024
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tiprow bot commented Nov 26, 2024

Hi @3pointer. Thanks for your PR.

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@3pointer 3pointer changed the title restore: set tidb_scatter_region to global before restore tables creation restore: set tidb_scatter_region to global before tables creation Nov 26, 2024
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ti-chi-bot bot commented Nov 26, 2024

[FORMAT CHECKER NOTIFICATION]

Notice: To remove the do-not-merge/needs-tests-checked label, please finished the tests then check the finished items in description.

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Restore should scatter new created empty tables
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