{"id":"wal-module-uses-locking-lsm-does-not","text":"The WAL module in `write-ahead-log/wal.py` uses `self._lock` for thread safety across its mutation paths, while the LSM tree module has zero locking or concurrency control despite having the same concurrent-access risks","truth_value":"IN","source":"entries/2026/05/29/topic-superversion-refcount-implementation.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"wal-module-uses-locking-lsm-does-not","truth_value":"IN","reason":"premise"}]}}