Ivan Andika created HDDS-12842:
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             Summary: Handle "Expect: 100-continue" header
                 Key: HDDS-12842
                 URL: https://issues.apache.org/jira/browse/HDDS-12842
             Project: Apache Ozone
          Issue Type: Sub-task
            Reporter: Ivan Andika
            Assignee: Ivan Andika


AWS S3 SDK might send "Expect: 100-continue" header to check whether there are 
available space before sending the actual content data. For example AWS Go SDK 
will add the "Expect: 100-Continue" header when the request is larger than 2MB.

Currently Ozone does not handle this, we need to check whether we should 
support this. There might be some functionality or performance impact.

Links: 
 * 
[https://docs.aws.amazon.com/AmazonS3/latest/API/RESTCommonRequestHeaders.html]
 * AWS Go SDK
 ** V1: 
https://github.com/aws/aws-sdk-go/blob/main/service/s3/platform_handlers_go1.6.go
 
 ** V2: https://github.com/aws/aws-sdk-go-v2/pull/2051



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