put-object with sigv4, error occurs: com.amazonaws.SdkClientException: Unable to execute HTTP request: Read after end of file about aws-sdk-java HOT 5 CLOSED

That's an IOException, looks like com.intel.cosbench.driver.generator.XferCountingInputStream is trying to read past the EOF. You should reach out to the maintainers of XferCountingInputStream.

I don't know why the error only happens when sigv4 is used, but we don't recommend using sigv2 for security reasons.

If you are starting to use the Java SDK now in your project, please use Java SDK 2.x instead, Java SDK 1.x will get into Maintenance Mode at the end of July 2024.

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@debora-ito thanks for your reply.
XferCountingInputStream is random generator.
any difference between sigv4 and sigv2 in put-object method?

I used the sdk v1 until 2020, and now i am using the v2 version.
thank you.

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We have documentation around sigv4, but not specifically about the difference. Again, sigv2 will be deprecated and is not recommended. In most use cases, you don't need to manually override the signer.

https://aws.amazon.com/blogs/aws/amazon-s3-update-sigv2-deprecation-period-extended-modified/
https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_aws-signing.html

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OK, thank you.

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