{"id":"persist-event-no-fsync","text":"`_persist_event` writes to the OS buffer via `file.write()` but never calls `fsync`; event data can be lost on crash between write and OS flush to disk.","truth_value":"IN","source":"entries/2026/05/29/event-sourcing-store-event_store-_persist_event.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"persist-event-no-fsync","truth_value":"IN","reason":"premise"}]}}