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https://issues.apache.org/jira/browse/HADOOP-17705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17617276#comment-17617276
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Greg Senia commented on HADOOP-17705:
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[~ste...@apache.org]is it possible to accept a backport I put together for
Hadoop 3.2. I have a few folks who cannot upgrade to Hadoop 3.3.x branch and
need the ability to access S3 using V4 signing via VPC endpoints without having
to mess with overrides and regex's as we have multiple endpoints in different
regions etc.
> S3A to add option fs.s3a.endpoint.region to set AWS region
> ----------------------------------------------------------
>
> Key: HADOOP-17705
> URL: https://issues.apache.org/jira/browse/HADOOP-17705
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Reporter: Mehakmeet Singh
> Assignee: Mehakmeet Singh
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.3.2
>
> Time Spent: 3h
> Remaining Estimate: 0h
>
> Currently, AWS region is either constructed via the endpoint URL, by making
> an assumption that the 2nd component after delimiter "." is the region in
> endpoint URL, which doesn't work for private links and sets the default to
> us-east-1 thus causing authorization issue w.r.t the private link.
> The option fs.s3a.endpoint.region allows this to be explicitly set
> h2. how to set the s3 region on older hadoop releases
> For anyone who needs to set the signing region on older versions of the s3a
> client *you do not need this festure*. instead just provide a custom endpoint
> to region mapping json file
> # Download the default region mapping file
> [awssdk_config_default.json|https://github.com/aws/aws-sdk-java/blob/master/aws-java-sdk-core/src/main/resources/com/amazonaws/internal/config/awssdk_config_default.json]
> # Add a new regular expression to map the endpoint/hostname to the target
> region
> # Save the file as {{/etc/hadoop/conf/awssdk_config_override.json}}
> # verify basic hadop fs -ls commands work
> # copy to the rest of the cluster.
> # There should be no need to restart any services
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