s3api head-object

[Kammula280]

When using aws s3api head-object --bucket bucket_name --key key --region ca-central-1, returns a 200 response even though when the bucket/object is not existing in that region. Is this expected?

[RyanFitzSimmonsAK]

Hi @Kammula280, thanks for reaching out. While buckets do have specific regions, S3 uses the global region, meaning objects and buckets are accessible from regions other than the region to which the bucket belongs. So to answer your question, yes, this behavior is intentional. I will mention that there still are advantages to specifying regions close to you. From the S3 User Guide :

Amazon S3 creates buckets in a Region that you specify. To reduce latency, minimize costs, or address regulatory requirements, choose any AWS Region that is geographically close to you. For example, if you reside in Europe, you might find it advantageous to create buckets in the Europe (Ireland) or Europe (Frankfurt) Regions.

Hope that helps!

@github-actions proposed-answer

[github-actions[bot]]

Hello! A team member has marked the above comment as the likely answer to this discussion thread.

• If you agree, please upvote that comment, or click on Mark as answer. I will automatically mark the comment as the answer next time I check.

• If this answer does not help you, please downvote the answer instead and let us know why it was not helpful. I will add a label to this discussion to gain attention from the team.

[Kammula280]

Thank you for answering @RyanFitzSimmonsAK. So is the significance of having --region option while using aws s3api head-object will help reduce latency or is there any other significance?

[RyanFitzSimmonsAK]

That is correct; having a bucket be close to your geographic location and specifying the correct region in the request helps minimize latency. Specifying the region in the request is also considered best practice.

[Kammula280]

Thank you very much! @RyanFitzSimmonsAK

[github-actions[bot]]

Hello! Reopening this discussion to make it searchable.