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https://issues.apache.org/jira/browse/HADOOP-12501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14975120#comment-14975120
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Chen He commented on HADOOP-12501:
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Thank you for the suggestion, [~steve_l]
"though I think it's dangerous as people may thing those permissions may
actually apply. "
Actually, I have another idea to enable swift driver to do permission check,
then the blobstore looks more like a real filesystem. The idea about changing
'distcp' is a great solution. IMHO, it could be more helpful if we find a way
to let the '-p' option works for all filesystem implementations.
> Enable SwiftNativeFileSystem to preserve user, group, permission
> ----------------------------------------------------------------
>
> Key: HADOOP-12501
> URL: https://issues.apache.org/jira/browse/HADOOP-12501
> Project: Hadoop Common
> Issue Type: New Feature
> Components: fs/swift
> Affects Versions: 2.7.1
> Reporter: Chen He
> Assignee: Chen He
>
> Currently, if user copy file/dir from localFS or HDFS to swift object store,
> u/g/p will be gone. There should be a way to preserve u/g/p. It will provide
> benefit for a large number of files/dirs transferring between HDFS/localFS
> and Swift object store. We also need to be careful since Hadoop prevent
> general user from changing u/g/p especially if Kerberos is enabled.
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