br/stream: allow pitr to create oversized indices (#58433)

[ti-chi-bot]

This is an automated cherry-pick of #58433

What problem does this PR solve?

Issue Number: close #58430

Problem Summary:
During restoring, the internal config of BR wasn't updated.
It may reject all indices longer than the default config (3072) though the target cluster modified this config.

What changed and how does it work?

This updates the TiDB config of the BR internal TiDB instance during restoring incremental data.

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.

Fixed a bug that caused cannot restore index created during log backup if it is longer than `3072`.

[codecov]

Codecov Report

Attention: Patch coverage is 40.00000% with 3 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.5@9a5b05a). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-8.5     #58527   +/-   ##
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  Coverage               ?   57.0042%           
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  Files                  ?       1770           
  Lines                  ?     628787           
  Branches               ?          0           
================================================
  Hits                   ?     358435           
  Misses                 ?     246184           
  Partials               ?      24168           

Flag	Coverage Δ
integration	36.8079% <40.0000%> (?)
unit	72.6359% <0.0000%> (?)

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

Components	Coverage Δ
dumpling	52.8711% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	52.2807% <0.0000%> (?)

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: BornChanger, YuJuncen

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Needs approval from an approver in each of these files:

• br/OWNERS [BornChanger,YuJuncen]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-01-07 03:09:15.587994242 +0000 UTC m=+236698.876825944: ☑️ agreed by YuJuncen.
• 2025-01-07 04:01:13.619858955 +0000 UTC m=+239816.908690659: ☑️ agreed by BornChanger.

[YuJuncen]

/test unit-test

[ti-chi-bot]

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

/test build

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The following commands are available to trigger optional jobs:

/test pull-br-integration-test

/test pull-br-integration-test-centos

/test pull-check2-centos

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/test pull-e2e-test-centos

/test pull-integration-common-test

/test pull-integration-common-test-centos

/test pull-integration-copr-test

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/test pull-integration-ddl-test

/test pull-integration-ddl-test-centos

/test pull-integration-e2e-test

/test pull-integration-e2e-test-centos

/test pull-integration-jdbc-test

/test pull-integration-jdbc-test-centos

/test pull-integration-mysql-test

/test pull-integration-mysql-test-centos

/test pull-integration-nodejs-test

/test pull-integration-nodejs-test-centos

/test pull-integration-python-orm-test

/test pull-integration-python-orm-test-centos

/test pull-integration-tidb-tools-test

/test pull-integration-tidb-tools-test-centos

/test pull-lightning-integration-test

/test pull-lightning-integration-test-centos

/test pull-mysql-client-test

/test pull-mysql-client-test-centos

/test pull-mysql-test-centos

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/test pull-sqllogic-test-centos

/test pull-tiflash-test

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

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In response to this:

/test unit-test

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 kubernetes-sigs/prow repository.

[tiprow]

@YuJuncen: No presubmit jobs available for pingcap/[email protected]

In response to this:

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[tiprow]

@ti-chi-bot[bot]: No presubmit jobs available for pingcap/[email protected]

In response to this:

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

/test build

/test check-dev

/test check-dev2

/test mysql-test

/test pull-unit-test-ddlv1

/test unit-test

The following commands are available to trigger optional jobs:

/test pull-br-integration-test

/test pull-br-integration-test-centos

/test pull-check2-centos

/test pull-common-test

/test pull-common-test-centos

/test pull-e2e-test

/test pull-e2e-test-centos

/test pull-integration-common-test

/test pull-integration-common-test-centos

/test pull-integration-copr-test

/test pull-integration-copr-test-centos

/test pull-integration-ddl-test

/test pull-integration-ddl-test-centos

/test pull-integration-e2e-test

/test pull-integration-e2e-test-centos

/test pull-integration-jdbc-test

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/test pull-integration-mysql-test

/test pull-integration-mysql-test-centos

/test pull-integration-nodejs-test

/test pull-integration-nodejs-test-centos

/test pull-integration-python-orm-test

/test pull-integration-python-orm-test-centos

/test pull-integration-tidb-tools-test

/test pull-integration-tidb-tools-test-centos

/test pull-lightning-integration-test

/test pull-lightning-integration-test-centos

/test pull-mysql-client-test

/test pull-mysql-client-test-centos

/test pull-mysql-test-centos

/test pull-sqllogic-test

/test pull-sqllogic-test-centos

/test pull-tiflash-test

/test pull-tiflash-test-centos

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

pingcap/tidb/release-8.5/pull_build

pingcap/tidb/release-8.5/pull_check

pingcap/tidb/release-8.5/pull_check2

pingcap/tidb/release-8.5/pull_mysql_test

pingcap/tidb/release-8.5/pull_unit_test

In response to this:

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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 kubernetes-sigs/prow repository.

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 kubernetes-sigs/prow repository.

[YuJuncen]

/test unit-test

[tiprow]

@YuJuncen: No presubmit jobs available for pingcap/[email protected]

In response to this:

/test unit-test

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 kubernetes-sigs/prow repository.