Elevated number of 524

Hey guys, we are seeing a lot of 524 responses, while the origin looks completely healthy. Any clues?
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Chaika17d ago
With Workers? Is your origin taking longer then 100s to respond (long processing job, etc)?
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dinlashades17d ago
Not really, our origin is Backblaze Backblaze doesn't see any observable issues Here is example ray id 86ec4785b2ce2dec
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Chaika17d ago
This is #workers-help, you're using workers to fetch Backblaze or where exactly do they come in?
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dinlashades17d ago
Yes, request goes through CF worker And we get 524 too fast about 10 s
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Chaika17d ago
ah ok, does your worker do anything else other then fetch backblaze?
And we get 524 too fast
Cloudflare pools connections and backs off when your origin is slow/unresponsive (https://blog.cloudflare.com/how-pingora-keeps-count), doesn't have to be after 100 seconds. There is currently an issue open with Image Resizing if you are using that, resulting in 524s: https://www.cloudflarestatus.com/incidents/p5xk648mwb66. Other then that there's no current issues, would try requests to Backblaze without CF in the middle/try to narrow down the issue
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dinlashades17d ago
After 4h of back and forth with support As far as I can tell issue started around 9h ago And yes - worker fetches image and scales it
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Chaika17d ago
ah ok ouch, at least there's a status post now
Here is example ray id 86ec4785b2ce2dec
btw green names like me aren't employees. We can escalate issues if they are impactful and replicable though. I can't do anything with a Ray ID, and even to CF Ray IDs are sometimes not helpful/they don't log everything for each request
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dinlashades17d ago
Yep, I mean - support ticket in CF account. It just took a while to push the fact that there is the issue through I really appreciate your help here Even trying to listen and understand the problem
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