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https://issues.apache.org/jira/browse/HADOOP-9384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13929975#comment-13929975
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Hadoop QA commented on HADOOP-9384:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12572751/HADOOP-9384-v2.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:red}-1 findbugs{color}. The patch appears to introduce 1 new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-common-project/hadoop-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/3659//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/3659//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-common.html
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/3659//console
This message is automatically generated.
> Update S3 native fs implementation to use AWS SDK to support authorization
> through roles
> ----------------------------------------------------------------------------------------
>
> Key: HADOOP-9384
> URL: https://issues.apache.org/jira/browse/HADOOP-9384
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/s3
> Environment: Locally: RHEL 6, AWS S3
> Remotely: AWS EC2 (RHEL 6), AWS S3
> Reporter: D. Granit
> Priority: Minor
> Fix For: 3.0.0
>
> Attachments: HADOOP-9384-v2.patch, HADOOP-9384.patch
>
>
> Currently the S3 native implementation
> {{org.apache.hadoop.fs.s3native.Jets3tNativeFileSystemStore}} requires
> credentials to be set explicitly. Amazon allows setting credentials for
> instances instead of users, via roles. Such are rotated frequently and kept
> in a local cache all of which is handled by the AWS SDK in this case the
> {{AmazonS3Client}}. The SDK follows a specific order to establish whether
> credentials are set explicitly or via a role:
> - Environment Variables: AWS_ACCESS_KEY_ID and AWS_SECRET_KEY
> - Java System Properties: aws.accessKeyId and aws.secretKey
> - Instance Metadata Service, which provides the credentials associated with
> the IAM role for the EC2 instance
> as seen in
> http://docs.aws.amazon.com/IAM/latest/UserGuide/role-usecase-ec2app.html
> To support this feature the current {{NativeFileSystemStore}} implementation
> needs to be altered to use the AWS SDK instead of the JetS3t S3 libraries.
> A request for this feature has previously been raised as part of the Flume
> project (FLUME-1691) where the HDFS on top of S3 implementation is used as a
> manner of logging into S3 via an HDFS Sink.
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