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[ROBUSTNESS] Implement atomic metadata writes (Write-Rename pattern) #17

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opened 2026-02-14 21:21:24 +00:00 by thabeta · 0 comments
thabeta commented 2026-02-14 21:21:24 +00:00
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The meta::Writer presently writes directly to the destination flist file.

Risk: A system crash or process failure during a write operation will leave a corrupted, partial .fl file on disk.

Proposed Fix: Implement a pattern where the writer writes to a temporary file (e.g., .fl.tmp) and performs an atomic rename to the final destination only after a successful flush.

The `meta::Writer` presently writes directly to the destination flist file. **Risk:** A system crash or process failure during a write operation will leave a corrupted, partial `.fl` file on disk. **Proposed Fix:** Implement a pattern where the writer writes to a temporary file (e.g., `.fl.tmp`) and performs an atomic rename to the final destination only after a successful flush.
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geomind_code/my_fs#17
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