aws s3 cp failed in UAE when tried to copy files from another region

[wc5858]

Describe the bug

The following command failed in UAE:

aws s3 cp s3:/xxx/xxx.tar.gz ./

The xxx bucket locates in us-east-1 region.
The error is:

An error occurred (IllegalLocationConstraintException) when calling the GetObject operation: The unspecified location constraint is incompatible for the region specific endpoint this request was sent to.

But this command works in other regions.

And in UAE it could work if we specify the region:

aws s3 cp s3:/xxx/xxx.tar.gz ./ --region=us-east-1

Expected Behavior

The command should work without specifying source region of the s3 bucket just like other regions do.

Current Behavior

The command doesn’t work in UAE without specifying source region of the s3 bucket.

Reproduction Steps

Use following command in UAE to copy file from a bucket in another region:

aws s3 cp s3:/xxx/xxx.tar.gz ./

Possible Solution

No response

Additional Information/Context

No response

CLI version used

aws-cli/2.13.17 Python/3.11.5 Linux/5.10.186-179.751.amzn2.x86_64 exec-env/CloudShell exe/x86_64.amzn.2 prompt/off

Environment details (OS name and version, etc.)

Linux

[RyanFitzSimmonsAK]

Hi @wc5858, thanks for reaching out. UAE is an opt-in region, and you need to specify the region for opt-in regions to make this request. You can either specify --region us-east-1 or --endpoint-url https://s3.us-east-1.amazonaws.com. The latter should allow you to make this request from the UAE region. Hope that helps!

[wc5858]

Hi @wc5858, thanks for reaching out. UAE is an opt-in region, and you need to specify the region for opt-in regions to make this request. You can either specify --region us-east-1 or --endpoint-url https://s3.us-east-1.amazonaws.com. The latter should allow you to make this request from the UAE region. Hope that helps!

Thanks for replying!

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