fix: tolerate writer blocking on win env.#1136
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This PR relaxes the assertion for testing concurrent write with long running read TX. The behavior is expected on Win env as file-lock semantics is diff than unix. Signed-off-by: Mustafa Elbehery <elbeherymustafa@gmail.com>
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ahrtr
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Jan 17, 2026
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| if runtime.GOOS == "windows" { | ||
| // Tolerate Windows-specific mmap/file-lock behavior — log detailed context for debugging. | ||
| t.Logf("writer commit returned error on Windows (tolerated): err=%v; db_path=%q; InitialMmapSize=%d; write_size=%d; reader_txid=%d; writer_txid=%d; note=reader transaction kept open during writer commit", | ||
| err, path, initMmapSize, testWriteSize, rtx.ID(), wtx.ID()) | ||
| } else { | ||
| t.Errorf("unexpected that the reader blocks writer") | ||
| } |
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I think the write commit delay should have nothing to do with read transaction. It should be caused by the big initMmapSize (1GB).
Proposed action:
- verify that even we remove the read transaction, it's still possible run into the same issue on Windows. Pls let's verify it in a separate PR
- We need to handle InitialMmapSize on Windows in a special logic, e.g. moved max size check; added test for post-max size functioning #1130 (comment). I will follow up this in PR 1130.
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Superseded by #1137 |
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This PR relaxes the assertion for testing concurrent write with long running read TX.
The behavior is expected on Win env as file-lock semantics is diff than unix.
See #1135 (comment)
cc @ahrtr @ivanvc