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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2016/02/05 22:52:39 UTC

[jira] [Created] (HADOOP-12774) s3a should use UGI.getCurrentUser.getShortname() for username

Steve Loughran created HADOOP-12774:
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             Summary: s3a should use UGI.getCurrentUser.getShortname() for username
                 Key: HADOOP-12774
                 URL: https://issues.apache.org/jira/browse/HADOOP-12774
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: fs/s3
    Affects Versions: 2.7.2
            Reporter: Steve Loughran


S3a users {{System.getProperty("user.name")}} to get the username for the homedir. This is wrong, as it doesn't work on a YARN app where the identity is set by HADOOP_USER_NAME, or in a doAs clause.

Obviously, {{UGI.getCurrentUser.getShortname()}} provides that name, everywhere. 

This is a simple change in the source, though testing is harder ... probably best to try in a doAs



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