[9.1.0] Fix disk cache failures on concurrent read-write access on Windows (h…#28555
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iancha1992 merged 2 commits intobazelbuild:release-9.1.0from Feb 25, 2026
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[9.1.0] Fix disk cache failures on concurrent read-write access on Windows (h…#28555iancha1992 merged 2 commits intobazelbuild:release-9.1.0from
iancha1992 merged 2 commits intobazelbuild:release-9.1.0from
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…azelbuild#28417) This applies the fix made to the download cache in 753dc97 to the disk cache. Work towards bazelbuild#28408 Closes bazelbuild#28417. PiperOrigin-RevId: 864861790 Change-Id: I6850fc27f3336f44f8d366daac63e4822cb94f73
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This pull request effectively addresses a concurrency issue on Windows related to disk cache access. The core of the change is the introduction of the FileSystemUtils.renameToleratingConcurrentCreation method, which correctly handles FileAccessException during file renames in a concurrent environment. This logic has been cleanly refactored from DownloadCache and applied to DiskCacheClient, resolving the bug. The changes are well-supported by new, thorough unit tests and a concurrency test that specifically targets the race condition. The overall implementation is robust and improves code maintainability by centralizing the fix in a reusable utility.
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…ttps://github.com//pull/28417)
This applies the fix made to the download cache in 753dc97 to the disk cache.
Work towards #28408
Closes #28417.
PiperOrigin-RevId: 864861790
Change-Id: I6850fc27f3336f44f8d366daac63e4822cb94f73
Commit 73c8da8