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Parallelize quadrant fetching and add smart 429 retry #114

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dougborg wants to merge 2 commits into from
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Parallelize quadrant fetching and add smart 429 retry #114

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7cff605
Parallelize quadrant fetching and add smart 429 retry (#109)
Feb 12, 2026
9bebba6
Cancel stale Overpass fetch requests via generation counter
Feb 13, 2026
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6 changes: 5 additions & 1 deletion lib/services/map_data_provider.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,11 @@ class MapDataProvider {
throw OfflineModeException("Cannot fetch remote nodes for offline area download in offline mode.");
}

// For downloads, always fetch fresh data (don't use cache)
// For downloads, always fetch fresh data (don't use cache).
// Note: passes null generation, so downloads are never cancelled by stale-fetch
// detection and will hold semaphore slots until complete. This is intentional —
// offline downloads should run to completion — but means concurrent downloads
// can block foreground map fetches via the shared semaphore.
return _nodeDataManager.fetchWithSplitting(bounds, profiles);
}

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