When the Graphhopper docker image is running, it stores edge and node files in /data/default-gh, and edgekv_keys and edgekv_vals are binary files. If I want to use the map of Europe as the base data and have multiple customer models, it is a time-consuming task to create the graph. Is there a way to build navigation maps for multiple countries at the same time and then merge them?
GraphHopper has no built-in functionality to support merging multiple “-gh”-folders. However, if your import is time-consuming, because it includes running the CH preparation for multiple profiles you could distribute the CH preparation over multiple machines. You would simply enable CH for one profile on each server and finally copy over the nodes_ch and shortcuts files.
Thank you very much!