Tinny files timeout on CDN that uses Blob storage as origin.

Edmond Varga 11 Reputation points
2022-11-23T15:18:43.53+00:00

Hi,

I'm trying to figure out why certain requests timeout on our website that's hosted on Azure Blob Storage and uses a CDN for some more control over the incoming requests. Just to note, caching is not enabled.
The affected files are quite tinny, for example in one of the cases a 3kb helper file took ~19s to load then suddenly the server cut out the request. When inspecting the logs, I've noticed the error: OriginTimeout and error code 503 and 504 respectively. I'm wondering, what causes these timeouts as the website itself doesn't have a huge traffic (10-15 visitors / day). Where should I look for answers, on the CDN or the Blob service?

(UPDATE: included a more descriptive screenshot):

263466-screenshot-2022-11-23-at-181106.png

Regarding the Blob service, we have a StorageV2 (general purpose v2) with a HOT access tier and a standard endpoint type. Should we upgrade to premium maybe?

Any suggestion is welcome,
Thanks!

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