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by vlovich123 1367 days ago
Known issue. Currently multipart uploads can only be uploaded at 2 parts per upload ID concurrently. We have a fix pending that should fix that bottleneck within the next month or so (maybe sooner). The change will show up on https://developers.cloudflare.com/r2/platform/changelog/

For now there are typically settings you can configure in whatever client you're using to lower the concurrency for uploads.

2 comments

Hey does this mean there's currently a max upload size of 1GB since each part can only be 500MB and you can only upload in 2 parts?
To answer my question the answer is no, this is about concurrent requests, so it's 2 at once but it will do upto 500 for each as many times as it needs to, to upload a 20GB file.
Awesome. thank you for the answer :)