Uploading thousands of files at the same time

[nesbtesh]

If I upload thousands of files at the same time, I am having an issue where some files dont end up in s3 bucket but slignshot responds with success. Why does it happen? Does it have to do with the signature being generated at the same time due to multiple pararel uploads?

[mikkelking]

What is your use case here? Are you doing any kind of throttling/error checking as you go?