PH6.1 — OSRM travel provider with cache, degraded health and W_TRAVEL_FALLBACK #42

New issue

Open

opened 2026-09-11 09:02:18 +00:00 by bart · 0 comments

bart commented

2026-09-11 09:02:18 +00:00

Collaborator

Parent

Row PH6.1 in docs/12-implementation-plan.md (branch, owned paths and doc section are defined there).

What to build

The engine uses OSRM for travel times when available, caches matrices, and falls back to haversine with a validator warning and a degraded health status when OSRM is down.

Acceptance criteria

OSRM TravelMatrixProvider passes the same contract tests as haversine
Cache hit avoids a second OSRM call for the same matrix
OSRM down → /healthz degraded, plan still produced, W_TRAVEL_FALLBACK finding

Blocked by

#18 — Planning engine daily mode: opportunities, travel provider, OR-Tools VRP model, result mapping
#3 — Compose base: db, LDAP, Keycloak realm, nginx, OSRM

## Parent Row **PH6.1** in `docs/12-implementation-plan.md` (branch, owned paths and doc section are defined there). ## What to build The engine uses OSRM for travel times when available, caches matrices, and falls back to haversine with a validator warning and a degraded health status when OSRM is down. ## Acceptance criteria - [ ] OSRM `TravelMatrixProvider` passes the same contract tests as haversine - [ ] Cache hit avoids a second OSRM call for the same matrix - [ ] OSRM down → `/healthz` degraded, plan still produced, `W_TRAVEL_FALLBACK` finding ## Blocked by - #18 — Planning engine daily mode: opportunities, travel provider, OR-Tools VRP model, result mapping - #3 — Compose base: db, LDAP, Keycloak realm, nginx, OSRM

bart added the

ready-for-agent

label

2026-09-11 09:02:18 +00:00

bart added a new dependency

2026-09-11 09:02:33 +00:00

#18 T-C — Planning engine daily mode: opportunities, travel provider, OR-Tools VRP model, result mapping

bart added a new dependency

2026-09-11 09:02:33 +00:00

#3 PH0.1 — Compose base: db, LDAP, Keycloak realm, nginx, OSRM