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fix(deploy): the sidecars' downloads try again within the hour after a failed round

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A failed BRouter segment or listing, a failed tile cut or an unwritable folder waited the whole refresh period, 30 days without routes or a map; they try again after an hour, doubling to a day. Photon's failed download backs off from a day to a week, and a dead Photon is noticed within a minute. The downloads' network is an ordinary bridge the three share, as the comments now say.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
This commit is contained in:
Tizian 「ティツィアーン」 2026-10-30 12:55:42 +01:00
commit ba77248930
Signed by: raisondetredev
GPG key ID: 07F6FCF405488B64
1 changed files with 102 additions and 19 deletions
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7
deploy/sidecars/README.md
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@ -223,7 +223,8 @@ Steps, in order; ✱ marks a step as root.
Learn's server are recreated with it (Train's site, and the register's member); the
instance is away for seconds. Train's server applies its migrations as it starts.
The segments come in the first hour or so (`docker compose logs brouter-segments`
says when); until then BRouter finds no route.
says when); until then BRouter finds no route. Where brouter.de doesn't answer or
the folder isn't BRouter's, the log says so and it tries again an hour later.
7. **Check it**: `https://train.halkyon.eu/` answers; in Train, signed in with a Learn
account, a route plans between two points of the region.
@ -266,7 +267,7 @@ Steps, in order; ✱ marks a step as root.
4. **Start it** (the operator, as `deploy`): `docker compose up -d --build`. Caddy and
Train's server are recreated with it. The first cut takes hours
(`docker compose logs -f map-tiles-refresh` says when it is done); until then Train's
maps stay empty.
maps stay empty. A failed cut is tried again an hour later.
5. **Check it**: in Train, signed in, a workout's map is drawn and names the instance as
its source; `curl -I https://train.halkyon.eu/tiles/europe/0/0/0.mvt` is refused
with 401. Not yet tried on the server (29 Oct 2026): whether `pmtiles serve` reads a
@ -309,7 +310,7 @@ Steps, in order; ✱ marks a step as root.
4. **Start it** (the operator, as `deploy`): `docker compose up -d --build`. Train's
server is recreated with it. The first database takes an hour or more
(`docker compose logs -f photon-data` says when it is ready); Photon starts on it
within the next hour, and until then Train's planner offers no search.
within a minute, and until then Train's planner offers no search.
5. **Check it**: in Train, signed in, the planner's search finds a town of the region.
Not yet tried on the server (29 Oct 2026): the database's size unpacked, Photon's
memory on Europe's, and that 1.3.0 reads GraphHopper's `1.0` build.