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dcbickfo
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Oct 6, 2025
dcbickfo
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- There was a race condition tied to loading and then deleting a key without checking it hadn't changed
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Pull Request Overview
This PR addresses a race condition in the cache-aside implementation by refactoring the lock mechanism to use context-based cancellation instead of simple channels. The changes improve robustness by ensuring locks are properly cleaned up and context cancellation is respected throughout the system.
- Replaced simple channel-based locks with context-aware lock entries that auto-cancel after lockTTL
- Added proper error handling and logging for lock cleanup operations
- Fixed a bug in multi-key operations and improved context cancellation handling
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| cacheaside.go | Core implementation changes including new lockEntry struct, context-based lock management, improved error handling, and bug fixes |
| cacheaside_test.go | Added test case to verify parent context cancellation behavior during lock waiting |
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