{"id":"lsm-no-synchronization","text":"`LSMTree` in `lsm.py` has zero locking, atomic swaps, or synchronization primitives; all shared state (`_memtable`, `_sstables`) is mutated in-place without protection","truth_value":"IN","source":"entries/2026/05/28/topic-lsm-concurrency-safety.md","source_url":"","source_hash":"","justifications":[],"dependents":["wal-thread-safety-stranded-by-callers"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"lsm-no-synchronization","truth_value":"IN","reason":"premise"}]}}