{"id":"wal-recovery-depends-on-listdir","text":"WAL segment discovery during recovery uses `os.listdir()`, so any segment whose parent directory entry was not fsynced becomes invisible after a crash — connecting the dir-fsync gap to concrete data loss.","truth_value":"IN","source":"entries/2026/05/29/topic-fsync-on-new-file-creation.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"wal-recovery-depends-on-listdir","truth_value":"IN","reason":"premise"}]}}