{"id":"wal-truncate-fsyncs-before-scan","text":"`truncate()` flushes and fsyncs the current WAL file before scanning for records to remove, preventing data loss from buffered writes that haven't reached disk","truth_value":"IN","source":"entries/2026/05/29/topic-log-structured-checkpoint-coordination.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"wal-truncate-fsyncs-before-scan","truth_value":"IN","reason":"premise"}]}}