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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2016/09/09 11:32:20 UTC

[jira] [Commented] (HADOOP-13310) S3A reporting of file group as empty is harmful to compatibility for the shell.

    [ https://issues.apache.org/jira/browse/HADOOP-13310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15476853#comment-15476853 ] 

Steve Loughran commented on HADOOP-13310:
-----------------------------------------

[~cnauroth] any plans for a patch here?

> 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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