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docs/s3: add note about chunk size decreasing progress accuracy

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Maciej Radzikowski 2022-06-16 22:29:36 +02:00 committed by GitHub
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commit 2e91287b2e
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backend/s3/s3.go
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@ -1677,7 +1677,14 @@ Files of unknown size are uploaded with the configured
chunk_size. Since the default chunk size is 5 MiB and there can be at
most 10,000 chunks, this means that by default the maximum size of
a file you can stream upload is 48 GiB. If you wish to stream upload
larger files then you will need to increase chunk_size.`,
larger files then you will need to increase chunk_size.
Increasing the chunk size decreases the accuracy of the progress
statistics displayed with "-P" flag. Rclone treats chunk as sent when
it's buffered by the AWS SDK, when in fact it may still be uploading.
A bigger chunk size means a bigger AWS SDK buffer and progress
reporting more deviating from the truth.
`,
Default: minChunkSize,
Advanced: true,
}, {