osrm data update

[swordOfMiracle]

Can I update a little part of osrm data(I mean a set of files, such as .osrm, .edges, .hsgr etc) without calling osrm-extract/osrm-contract again ?

For example - setting a barrier to the highway and it is becoming not-drivable way.

[danpat]

@swordOfMiracle as a general rule, no, not without creating the potential for invalid routes.

OSRM uses the .hsgr for routing. Unfortunately, because of the way Contraction Hierarchies work, if you update something in the original graph, you probably need to re-generate the contracted graph - small changes in the original can lead to large changes in the .hsgr file.

Just today I've opened a separate ticket #2377 to discuss one possible way of supporting a limited set of modifyable edges within the CH without requiring a full re-processing run.

[TheMarex]

Closing as duplicate of #2377.