neiam /apollos_crib

It's Apollo's Crib

Give a vision's queries nearly the whole tick, not ten seconds

51f8710 · Gabriel Morell · 2026-09-02 16:15

6 files +13 -1

Message

{commit_body(@commit)}

modified apps/room_sanctum/lib/room_sanctum/workers/vision_worker.ex

+13 −1

@@ -10,7 +10,19 @@ defmodule RoomSanctum.Worker.Vision do

10	10
11	11	# Each query is asked on its own, so this is the cap on one of them rather
12	12	# than on a round of them.
13		− @query_timeout_ms 10_000
	13	+ #
	14	+ # Ten seconds was too tight and made things worse rather than safer. GTFS
	15	+ # arrival lookups against prod's data take on the order of ten seconds -- the
	16	+ # same slowness that used to blow the thirty second tick when a round asked
	17	+ # three of them one after another -- so a ten second cap turned "sometimes
	18	+ # completes" into "never completes", and every panel sat on its previous
	19	+ # answer for ever.
	20	+ #
	21	+ # Just under the tick instead: a query gets essentially the whole interval,
	22	+ # and the cap goes back to being a guard against a source that has genuinely
	23	+ # hung rather than a limit real work runs into. It is not a fix for the
	24	+ # slowness, which wants finding with an EXPLAIN against prod.
	25	+ @query_timeout_ms 25_000
14	26
15	27	# How many of a vision's queries may be out at once.
16	28	#

Parents: b080da5