{"id":"none-mode-never-syncs-on-append","text":"In `none` sync mode, `_do_sync()` is a complete no-op for individual appends; data reaches stable storage only via WAL rotation or explicit close","truth_value":"IN","source":"entries/2026/05/29/topic-fsync-semantics-by-mode.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"none-mode-never-syncs-on-append","truth_value":"IN","reason":"premise"}]}}