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> Append workloads are common in distributed systems.

Bringing back the topic to what the parent was saying; since S3 is a pretty common system, and a distributed system at that, are you saying that S3 does support appending data? AFAIK, S3 never supported any append operations.

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I’ll add some nuance here. You can implement append yourself in a clunk way. Create a new multipart upload for the file, copy its existing contents, create a new part appending what you need, and then complete the upload.

Not as elegant / fast as GCS’s and there may be other subtleties, but it’s possible to simulate.

It does not. Consider using services like Amazon Kinesis Firehose, which can buffer and batch logs, then periodically write them to S3.

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