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https://issues.apache.org/jira/browse/HADOOP-12548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14988482#comment-14988482
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Chris Nauroth commented on HADOOP-12548:
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Hi [~lmccay]. Thanks for jumping in!
The current codebase uses this class to encapsulate retrieving the S3
credentials:
https://github.com/apache/hadoop/blob/trunk/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3/S3Credentials.java
Here is where you can see the s3n file system using that class:
https://github.com/apache/hadoop/blob/trunk/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3native/Jets3tNativeFileSystemStore.java#L79-L80
The s3a file system does it a little differently, without going through the
{{S3Credentials}} class:
https://github.com/apache/hadoop/blob/trunk/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java#L160-L161
IMO, we don't need to worry about looking at the s3 file system, only s3n and
s3a. Maybe Allen can confirm or deny that though as the requester.
> read s3 creds from a file
> -------------------------
>
> Key: HADOOP-12548
> URL: https://issues.apache.org/jira/browse/HADOOP-12548
> Project: Hadoop Common
> Issue Type: New Feature
> Components: fs/s3
> Reporter: Allen Wittenauer
>
> It would be good if we could read s3 creds from a file rather than via a java
> property.
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