forked from Keelrleek/SoulStream
KeelrLeek
3aaec30dc6
The image-host liveness probe has a 3-second budget so a page never waits on it — but losing that race was recorded as "the host is down" and cached for the full five-minute TTL, turning one bad sample into square portraits on every artist page in the window. Measured on the machine that reported it: all 213 cached assets.fanart.tv urls answered in ~130ms while the machine's own first DNS resolver ate 1-3.6s of the budget before a byte was sent — and the A record's TTL is 300s, exactly the probe TTL, so every probe replayed that lottery on an expired name. The fast verdict still stands for the page that paid for it — it falls through to the next provider immediately, as before — but a background confirmation with a 12-second budget now decides whether the verdict persists, and the warning reports what was measured (timeout, transport error chain, or 5xx) instead of asserting an outage it cannot see. A regression test stalls a local socket exactly once and proves the host comes back without waiting out the TTL; the fanart_probe_live harness prints the reqwest error chain four ways for the next time a provider is suspected on this machine.