Translate Quip's Loadshed-Lock to Go#840

Merged

bgwines merged 13 commits into

bwines/snake-22from

bwines/loadshed-lock

May 20, 2026

Commits on May 19, 2026

Implement CoDel-based loadshed lock for VTTablet

bgwines
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Claude
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Address PR review feedback: renames, cleanup, conventions

bgwines
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Claude
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Fix lint: use wg.Go, rand/v2, and nolint:modernize directives

bgwines
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Claude
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Extract lockedEnqueueRequest to eliminate enqueue duplication
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Replace channel pop/push-back in lockedPeek with inspectable result field
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Replace broken self-contention stress tests with 6 robust tests
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Move drop orchestration from Lock into SelfContentionAwareCoDelQueue
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Remove dead `scheduleDropIfNeeded` and rename `stopDropTimer`

bgwines
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claude
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Fix missing drop timer reschedule after healthy dequeue

bgwines
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claude
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Fix cancel-vs-grant race in Lock.Acquire double-select

bgwines
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claude
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Address PR #840 review feedback: 23 items

bgwines
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claude
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Fix lockedPeek defensive cleanup not updating bookkeeping

bgwines
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claude
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Replace sync.WaitGroup.Go with Add/Done for Go 1.24 compat

bgwines
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claude
committed