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Forum Discussion
Dropbox chunks upload slow & unpredictable
I am trying to upload files larger than 150 MB using Dropbox API v2 on iOS. Problem is upload is sometimes slow, sometimes it hangs in the middle for several seconds, sometimes it stalls in the middl...
Greg-DB
Dropbox Community Moderator
Dropbox Community ModeratorIt sounds like you're running in to general network reliability issues. While the API endpoints can technically accept up to 150 MB per request, we generally don't reccomend doing that much, as the connections can become unreliable due to various other factors.
Using a much smaller chunk size is usually preferable, e.g., 8 MB. I recommend trying a few different sizes to see what's optimal for your scenario.
Using a much smaller chunk size is usually preferable, e.g., 8 MB. I recommend trying a few different sizes to see what's optimal for your scenario.
I will try to conduct test with 8 MB chunks, but I see the issue with chunked approach is it doesn't work in background on iOS. Is there any approach to get the upload working in background?
- Greg-DBThere's some information about background tasks here:
https://github.com/dropbox/dropbox-sdk-obj-c#note-about-background-sessions
I don't believe there's a great solution though, as that applies to individual upload requests. Wrapping the upload session calls in a background task will get you a couple of minutes, but it won't fail gracefully.
Greg-DB wrote:
There's some information about background tasks here:
https://github.com/dropbox/dropbox-sdk-obj-c#note-about-background-sessions
I don't believe there's a great solution though, as that applies to individual upload requests. Wrapping the upload session calls in a background task will get you a couple of minutes, but it won't fail gracefully.
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