[ARROW-10066] [C++] Make sure that default AWS region is respected

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/26085
• Assignee: Antoine Pitrou
• Reporter: Neal Richardson
• Created: 22/Sep/20 17:37
• Updated: 11/Jan/23 08:10
• Resolved: 23/Sep/20 19:56

Description

See https://aws.amazon.com/blogs/developer/aws-sdk-for-c-version-1-8-developer-preview/. The sdk will detect the region from EC2 metadata if present; it will also (as of 1.8 at least) let you specify a default region via environment variable. So we should make sure that we don't override it with us-east-1 if the SDK pulls a region from one of those. (Sounds like how access_key/secret_key are currently handled.)

Issue Links

• links to: GitHub Pull Request #8249