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https://issues.apache.org/jira/browse/HADOOP-16470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16913589#comment-16913589
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Hudson commented on HADOOP-16470:
---------------------------------

FAILURE: Integrated in Jenkins build Hadoop-trunk-Commit #17169 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/17169/])
HADOOP-16470. Make last AWS credential provider in default auth chain (stevel: 
rev 61b2df23317767833b327e5f69dbe73e8d4f0fc1)
* (edit) hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/index.md
* (edit) 
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/auth/IAMInstanceCredentialsProvider.java
* (edit) hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
* (add) 
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/SharedInstanceCredentialProvider.java


> Make last AWS credential provider in default auth chain 
> EC2ContainerCredentialsProviderWrapper
> ----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-16470
>                 URL: https://issues.apache.org/jira/browse/HADOOP-16470
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.3.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Major
>             Fix For: 3.3.0
>
>
> There's a new credential provider in the AWS SDK, 
> {{com.amazonaws.auth.EC2ContainerCredentialsProviderWrapper}}
>  this is designed to work within AWS containers as well as EC2 VMs, using env 
> vars to find container credentials first, falling back to the IAM metadata 
> service. This way, when deployed in a container or EC2 VM, it will always 
> find the session credentials for the deployed IAM Role



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