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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13310) S3A reporting of file group as empty is harmful to compatibility for the shell.
Date Wed, 22 Jun 2016 16:04:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Nauroth updated HADOOP-13310:
-----------------------------------
    Summary: S3A reporting of file group as empty is harmful to compatibility for the shell.
 (was: S3A reporting of file group as null is harmful to compatibility for the shell.)

> S3A reporting of file group as empty is harmful to compatibility for the shell.
> -------------------------------------------------------------------------------
>
>                 Key: HADOOP-13310
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13310
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Chris Nauroth
>            Priority: Minor
>
> S3A does not persist group information in file metadata.  Instead, it stubs the value
of the group to an empty string.  Although the JavaDocs for {{FileStatus#getGroup}} indicate
that empty string is a possible return value, this is likely to cause compatibility problems.
 Most notably, shell scripts that expect to be able to perform positional parsing on the output
of things like {{hadoop fs -ls}} will stop working if retargeted from HDFS to S3A.



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