{"id":"wal-fsync-per-entry","text":"Each `log_write` call forces an `os.fsync`, guaranteeing per-entry durability at the cost of one sync syscall per logged page write.","truth_value":"IN","source":"entries/2026/05/29/b-tree-storage-engine-btree-log_write.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"wal-fsync-per-entry","truth_value":"IN","reason":"premise"}]}}