Settings
History and storage
Retain raw measurements and control historical graph aggregation.
Pngr automatically writes real measurements to its local SQLite database.
| Setting | Default | Range |
|---|---|---|
| Retention | 30 days | 1–3650 days |
| Graph aggregation | 5 seconds | 1–3600 seconds |
Retention removes old samples at startup and every 30 minutes. Saving preferences in Workspaces and data also runs retention immediately. Lowering retention can permanently remove older measurements when maintenance runs.
Aggregation controls historical graph queries. It does not replace retained raw samples, which remain available to CSV export. The separate in-memory samples per hop setting limits live history, not database retention.
Choose Apply & open data maintenance… to compact the database or import/export a workspace. The window also shows your data directory.