tidb-lightning: add checking PITR and active changefeed task (#21381) #21395
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Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Lilian Lee <[email protected]>
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Summary of Changes
Hello @ti-chi-bot, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request enhances the robustness of TiDB Lightning by adding a crucial pre-check to prevent conflicts with ongoing PITR or changefeed tasks. This ensures data integrity during physical import operations by automatically halting the process if incompatible replication features are active, and updates the relevant documentation.
Highlights
- New Pre-check for TiDB Lightning: A new pre-check has been introduced for TiDB Lightning to verify the state of PITR (Point-in-Time Recovery) and active changefeed tasks in the cluster.
- Compatibility Enforcement: The physical import mode of TiDB Lightning is incompatible with active PITR or changefeed tasks. This new check ensures that TiDB Lightning will automatically exit with an error if these are detected, preventing potential data conflicts or issues.
- Documentation Update: The
tidb-lightning-prechecks.mddocumentation has been updated to include details about this new check, its purpose, the affected TiDB versions (>= 6.5.0), and how users can optionally skip it if they are certain the imported tables do not require PITR or changefeed replication.
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: lilin90 The full list of commands accepted by this bot can be found here. The pull request process is described here
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This is an automated cherry-pick of #21381
First-time contributors' checklist
What is changed, added or deleted? (Required)
Update tidb-lightning-prechecks
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)?
Do your changes match any of the following descriptions?