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docs: fix outdated Region size in multi-AZ deployment doc - #24204
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| Layer / File(s) | Summary |
|---|---|
Update documented Region size multi-data-centers-in-one-city-deployment.md |
The documentation specifies a 256 MiB estimated default for newly split Regions in TiDB v8.4.0 and later, and 96 MiB for earlier versions. |
Priority:
Estimated code review effort: 1 (Trivial) | ~2 minutes
Change: Other
Possibly related PRs
- pingcap/docs#24205: Updates the TiDB Cloud glossary with the same version-dependent estimated default size for newly split Regions.
Suggested reviewers: qiancai
Merge Risk: 
07d69
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This documentation update is ready to merge; no material correctness or operational risk remains.
Architecture risk: 
75a0a
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The change affects 1 system.
Changed systems:
multi-data-centers-in-one-city-deployment.mdArchitecture concerns
No architecture-level concerns identified.Review details
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Systems and components
- observed — multi-data-centers-in-one-city-deployment.md (service) was modified; 1 changed file maps to changed impact.
Before / after behavior
- observed — Modified behavior in multi-data-centers-in-one-city-deployment.md: The documented default Region size changes from 96 MB to 256 MiB.
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Pre-merge checks: 
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Check name Status Explanation Title check The title clearly identifies the documentation file and the outdated Region size correction. Description check The description explains the change, affected TiDB versions, related references, AI involvement, and applicable change categories. The required sections are present and sufficiently complete. Docstring Coverage No eligible functions found in the changed files. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Documentation-only edits and deletions within survi… Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request. Full details: Docstring Coverage
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Explanation
No eligible functions found in the changed files. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)
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docs/fix-region-default-multi-az
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In response to a cherrypick label: new pull request created to branch |
What is changed, added or deleted? (Required)
multi-data-centers-in-one-city-deployment.mdto use the current default Region size (256 MiB) instead of the outdated96 MB.Which TiDB version(s) do your changes apply to? (Required)
Tips for choosing the affected version(s):
By default, CHOOSE MASTER ONLY so your changes will be applied to the next TiDB major or minor releases. If your PR involves a product feature behavior change or a compatibility change, CHOOSE THE AFFECTED RELEASE BRANCH(ES) AND MASTER.
For details, see tips for choosing the affected versions.
What is the related PR or file link(s)?
AI agent involvement
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Summary by CodeRabbit