Local install not finding routes

[classicclown]

Hi everyone,

I'm trying to set up Valhalla locally to find the route for trips but I'm running into some issues. I've got the Valhalla docker image set up locally on a server with https://download.geofabrik.de/africa/south-africa-latest.osm.pbf South Africa osm file as my reference map.

I've got a database of trips that I'm trying to route through Valhalla but I keep running into this error:

Valhalla error for trip: {"error_code":172,"error":"Exceeded breakage distance for all pairs: 2000 meters","status_code":400,"status":"Bad Request"}.

The co-ordinates are fine, I've checked them on OpenStreetMaps and Google Maps and they are right next to roads and nothing is remote, so it must be something wrong with my config. I haven;t touched the json config file but here is my config code that I'm passing:
payload = { "shape": [ {"lat": start_lat, "lon": start_long}, {"lat": end_lat, "lon": end_long} ], "costing": "auto", "shape_match": "walk_or_snap", "search_radius":500000, "filters": { attributes": ["way_id", "length", "name", "road_class"] }}

Here are sample lat and longs that I tried which all gave the same error code 172:
{ "start_location_lat": -33.9036, "start_location_lon": 18.4200, "end_location_lat": -33.9519, "end_location_lon": 18.4031},{ "start_location_lat": -33.9519, "start_location_lon": 18.4031, "end_location_lat": -33.9715, "end_location_lon": 18.6021},{ "start_location_lat": -33.9715, "start_location_lon": 18.6021, "end_location_lat": -34.1053, "end_location_lon": 18.4693},{ "start_location_lat": -34.1053, "start_location_lon": 18.4693, "end_location_lat": -33.9876, "end_location_lon": 18.4323},{ "start_location_lat": -33.9876, "start_location_lon": 18.4323, "end_location_lat": -33.9794, "end_location_lon": 18.4645},{ "start_location_lat": -33.9794, "start_location_lon": 18.4645, "end_location_lat": -33.9121, "end_location_lon": 18.3865},{ "start_location_lat": -33.9121, "start_location_lon": 18.3865, "end_location_lat": -33.8921, "end_location_lon": 18.5113},{ "start_location_lat": -33.8921, "start_location_lon": 18.5113, "end_location_lat": -33.8986, "end_location_lon": 18.6291},{ "start_location_lat": -33.8986, "start_location_lon": 18.6291, "end_location_lat": -34.0487, "end_location_lon": 18.3456}

Additionally, I got this error:

Valhalla error for trip: {"error_code":444,"error":"Map Match algorithm failed to find path: walk_or_snap algorithm failed to snap the shape points to the correct shape.","status_code":400,"status":"Bad Request"}
Details:
Start Lat and Long: -33.93322, 18.47458
End Lat and Long: -33.94667, 18.48130

Some trip coordinates do work, and I get a route output, so I'm really not sure where the process might be going wrong. Any help would be appreciated!

[chrstnbwnkl]

The map matching params (https://valhalla.github.io/valhalla/meili/configuration/#map-matching-parameters) have max values set in the config which you'll have to adapt to your needs.

[classicclown]

I see, thank you. Increasing the breakage distance solved error 172 it seems.

Would changing the map matching params solve error 444 too? Would you know which param to change?

Map Match algorithm failed to find path: walk_or_snap algorithm failed to snap the shape points to the correct shape.","status_code":400,"status":"Bad Request