We used qiniu's storage service, but did not use qiniu's client sdk. Our process is to upload to our own server first and then upload to Qiniu. 10% of requests uploaded to our server resulted in 499. After tracking the logs, I feel that the client has disconnected before all the images are uploaded to nginx. I don’t know if Qiniu has this kind of problem, and if so, how to deal with it.
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According to your description, if the client actively disconnects, it is possible that the response timeout is too short, causing the client to be disconnected without receiving a response for a long time; such a suggestion is to increase the timeout, or use Multipart upload divides a large file into multiple parts and resumes the upload so that the client does not wait for a long time for the upload response.