{"id":"wal-batch-always-fsyncs","text":"`append_batch()` always force-fsyncs regardless of the configured sync mode, because batch atomicity requires the COMMIT marker to be durable before returning.","truth_value":"IN","source":"entries/2026/05/28/write-ahead-log-wal.md","source_url":"","source_hash":"","justifications":[],"dependents":["critical-wal-operations-always-force-fsync","wal-two-tier-durability-model"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"wal-batch-always-fsyncs","truth_value":"IN","reason":"premise"}]}}