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txn: fix the incorrect untouch used in optimistic transactions(#30447) #30533

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merged 3 commits into from
Dec 17, 2021

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cfzjywxk
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@cfzjywxk cfzjywxk commented Dec 8, 2021

What problem does this PR solve?

Issue Number: ref #30410

Problem Summary:
When the optimistic transaction is used, the untouched key optimization is not compatible with lazy existence check and results in data inconsistency. Cherry-pick #30447 to release 5.0.

What is changed and how it works?

Check List

Tests

  • Unit test

Side effects

Documentation

Release note

Fix the data inconsistency caused by incorrect usage of lazy existence check and untouch key optimization.

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ti-chi-bot commented Dec 8, 2021

[REVIEW NOTIFICATION]

This pull request has been approved by:

  • you06
  • youjiali1995

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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@ti-chi-bot ti-chi-bot added do-not-merge/cherry-pick-not-approved release-note Denotes a PR that will be considered when it comes time to generate release notes. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Dec 8, 2021
@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Dec 8, 2021
@ti-chi-bot ti-chi-bot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Dec 8, 2021
@zhouqiang-cl zhouqiang-cl added the cherry-pick-approved Cherry pick PR approved by release team. label Dec 16, 2021
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/merge

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This pull request has been accepted and is ready to merge.

Commit hash: 0a63fcf

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Dec 17, 2021
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@cfzjywxk: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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 ti-community-infra/tichi repository.

@ti-chi-bot ti-chi-bot merged commit 3205882 into pingcap:release-5.0 Dec 17, 2021
@zhouqiang-cl zhouqiang-cl added this to the v5.0.6 milestone Dec 21, 2021
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cherry-pick-approved Cherry pick PR approved by release team. release-note Denotes a PR that will be considered when it comes time to generate release notes. sig/transaction SIG:Transaction size/M Denotes a PR that changes 30-99 lines, ignoring generated files. status/can-merge Indicates a PR has been approved by a committer. status/LGT2 Indicates that a PR has LGTM 2. type/bugfix This PR fixes a bug. type/5.0-cherry-pick
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6 participants