{"id":"flush-skips-immutable-memtable-stage","text":"`_flush` writes the frozen memtable directly to an SSTable without staging it in `_immutable_memtables`, creating a brief window where in-flight keys are invisible to `get()` despite `_immutable_memtables` being checked in the read path","truth_value":"IN","source":"entries/2026/05/29/log-structured-merge-tree-lsm-_flush.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"flush-skips-immutable-memtable-stage","truth_value":"IN","reason":"premise"}]}}