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https://issues.apache.org/jira/browse/HADOOP-14391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15998852#comment-15998852
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Aaron Fabbri commented on HADOOP-14391:
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There appears to be [an
API|http://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/s3/AmazonS3.html#getBucketLocation-com.amazonaws.services.s3.model.GetBucketLocationRequest-]
to query bucket location.
I suppose we could:
- Introduce a new config flag, say, {{fs.s3a.auto.set.endpoint}} (or we could
use a special value "auto" for {{fs.s3a.endpoint}}.)
- When enabled, at init time, use {{AmazonS3#getBucketLocation(..)}},
{{Region#fromValue()}}, then build the endpoint name s3-${REGION}.amazonaws.com
and set it.
> s3a: auto-detect region for bucket and use right endpoint
> ---------------------------------------------------------
>
> Key: HADOOP-14391
> URL: https://issues.apache.org/jira/browse/HADOOP-14391
> Project: Hadoop Common
> Issue Type: Improvement
> Components: s3
> Affects Versions: 3.0.0-alpha2
> Reporter: Aaron Fabbri
>
> Specifying the S3A endpoint ({{fs.s3a.endpoint}}) is
> - *required* for regions which only support v4 authentication
> - A good practice for all regions.
> The user experience of having to configure endpoints is not great. Often it
> is neglected and leads to additional cost, reduced performance, or failures
> for v4 auth regions.
> I want to explore an option which, when enabled, auto-detects the region for
> an s3 bucket and uses the proper endpoint. Not sure if this is possible or
> anyone has looked into it yet.
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