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txn: support shared lock for lock wait table (#19271)#19405

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ti-chi-bot[bot] merged 1 commit intotikv:release-8.5from
you06:cherry-pick-19271
Mar 3, 2026
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txn: support shared lock for lock wait table (#19271)#19405
ti-chi-bot[bot] merged 1 commit intotikv:release-8.5from
you06:cherry-pick-19271

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@you06 you06 commented Feb 27, 2026 •
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cherry pick #19271 to release-8.5 branch

What is changed and how it works?

Issue Number: ref #19087

What's Changed:

Handle the shared lock in the lock wait table.

Related changes

  • PR to update pingcap/docs/pingcap/docs-cn:
  • Need to cherry-pick to the release branch

Check List

Tests

  • Unit test
  • Integration test
  • Manual test (add detailed scripts or steps below)
  • No code

Side effects

  • Performance regression: Consumes more CPU
  • Performance regression: Consumes more Memory
  • Breaking backward compatibility

Release note

None

@you06
txn: support shared lock for lock wait table (tikv#19271)
2fe0b1c 
ref tikv#19087

Handle the shared lock in the lock wait table.

Signed-off-by: you06 <you1474600@gmail.com>
@ti-chi-bot ti-chi-bot bot added do-not-merge/cherry-pick-not-approved dco-signoff: yes Indicates the PR's author has signed the dco. do-not-merge/release-note-label-needed Indicates that a PR should not merge because it's missing one of the release note labels. size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. labels Feb 27, 2026
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@ti-chi-bot ti-chi-bot bot added release-note-none Denotes a PR that doesn't merit a release note. and removed do-not-merge/release-note-label-needed Indicates that a PR should not merge because it's missing one of the release note labels. labels Mar 2, 2026
@ti-chi-bot ti-chi-bot bot added needs-1-more-lgtm Indicates a PR needs 1 more LGTM. approved labels Mar 2, 2026
@ti-chi-bot ti-chi-bot bot added the lgtm label Mar 3, 2026
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ti-chi-bot bot commented Mar 3, 2026

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: cfzjywxk, zyguan

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@ti-chi-bot ti-chi-bot bot removed the needs-1-more-lgtm Indicates a PR needs 1 more LGTM. label Mar 3, 2026
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ti-chi-bot bot commented Mar 3, 2026

[LGTM Timeline notifier]

Timeline:

  • 2026-03-02 05:50:02.952491025 +0000 UTC m=+164447.530570209: ☑️ agreed by zyguan.
  • 2026-03-03 11:17:43.26664683 +0000 UTC m=+270507.844726044: ☑️ agreed by cfzjywxk.

@ti-chi-bot ti-chi-bot bot added cherry-pick-approved Cherry pick PR approved by release team. and removed do-not-merge/cherry-pick-not-approved labels Mar 3, 2026
@ti-chi-bot ti-chi-bot bot merged commit fce27fe into tikv:release-8.5 Mar 3, 2026
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@you06-pingcap you06-pingcap mentioned this pull request Mar 3, 2026
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@you06 you06 mentioned this pull request Mar 4, 2026
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@ti-chi-bot ti-chi-bot bot added do-not-merge/cherry-pick-not-approved cherry-pick-approved Cherry pick PR approved by release team. and removed cherry-pick-approved Cherry pick PR approved by release team. do-not-merge/cherry-pick-not-approved labels Mar 4, 2026
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@cfzjywxk cfzjywxk cfzjywxk approved these changes

+1 more reviewer

@zyguan zyguan zyguan approved these changes

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approved cherry-pick-approved Cherry pick PR approved by release team. dco-signoff: yes Indicates the PR's author has signed the dco. lgtm release-note-none Denotes a PR that doesn't merit a release note. size/XL Denotes a PR that changes 500-999 lines, ignoring generated files.

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3 participants

@you06 @cfzjywxk @zyguan