search

Project-OSRM / osrm-backend

Open Source Routing Machine - C++ backend
http://map.project-osrm.org
BSD 2-Clause "Simplified" License
6.36k stars 3.37k forks source link

Table service does not use traffic updates #5769

Closed njroussel closed 2 months ago

njroussel commented 4 years ago

Algorithm: MLD

When using the table service to get route durations, it seems that traffic updates (applied with osrm-customize) are not being used/applied.

Reasoning:

  1. I observed that for the same sources and destinations, the outputted durations of the route service differ with those of the table service.
  2. The durations of the route result are coherent with the traffic updates (can be checked with the annoations).
  3. When running the same table request on a fresh OSRM build (no traffic updates), the output is unchanged.

Is this inconsistency between route and table intended behaviour ?Am I simply misunderstanding their individual use-cases?

danpat commented 4 years ago

osrm-customize just prepares the datafiles - you need to refresh osrm-routed by either:

  1. Restarting it, or
  2. Using osrm-datastore and osrm-routed -s in combination.

Simply running osrm-customize isn't sufficient to suddenly get updated results from a running osrm-routed process.

njroussel commented 4 years ago

I am using shared memory and updating it with osrm-datastore.

Maybe I wasn't clear enough, currently I'm observing something like this for a given source & destination: (values are durations) Service Before traffic update After traffic update
Route 120 180
Table 120 120

Where the 180 duration is completely expected and correct for the update I made.

knasti commented 4 years ago

I experienced the same issue see #5723

github-actions[bot] commented 3 months ago

This issue seems to be stale. It will be closed in 30 days if no further activity occurs.