Kamil Trzciński 7458d37d2a
s3: add max_upload_parts support - fixes #4159
* s3: add `max_upload_parts` support

This allows to configure a maximum amount of chunks used to upload file:

- Support Scaleway which has a limit of 1k chunks currently
- Reduce a cost on S3 when each request costs some money at the expense of memory used

Co-authored-by: Nick Craig-Wood <nick@craig-wood.com>
2020-06-08 18:22:34 +01:00
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