I have an app that is constantly getting
could not find a good candidate within 90 attempts at load balancing. last error: no known healthy instances found for route tcp/443. (hint: is your app shut down? is there an ongoing deployment with a volume or are you using the ‘immediate’ strategy? have your app’s instances all reached their hard limit?)
despite passing health checks AND the endpoint working
when another fly app hits that endpoint it gets 503 error
What’s the app name? Does the output of
fly status and
fly checks list look ok?
HTTP 503 is representing the same error - “no known healthy instances”
It works now, i repeatedly did the following things:
- scale to 0 then scale to 2
- scale to 2 in a different region then scale to 0 the main region
- destroy the app
- use launch and deploys
and then after some struggling it all worked again (code did not change during the entire period) it was quite frustrating :((
i also wanted to ask if we are having problems in terms of internet connectivity? because my apps that used to take 400-800ms to fetch data from external api (binance) now takes 3 seconds to 30 seconds
ik the api isn’t broken because all of my apps fetch from the same api it’s just some fly apps suddenly take extra long to fetch data nowadays causing some very weird and prolonged spikes on grafana
i’ve also tested calling the api in my machine alongside the fly apps and there is no problem
any solutions or things you can point me to? thanks!
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