Chris Nauroth created HADOOP-12390:
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             Summary: Enhance FsShell file put to support selectively 
preserving individual file attributes.
                 Key: HADOOP-12390
                 URL: https://issues.apache.org/jira/browse/HADOOP-12390
             Project: Hadoop Common
          Issue Type: Improvement
          Components: fs
            Reporter: Chris Nauroth


{{hadoop fs -put}} currently supports the {{-p}} option.  When used, this 
option preserves the source file's access time, modification time, ownership 
and mode.  If the destination is HDFS, then this effectively means HDFS must be 
configured to use modification time.  If the HDFS deployment chooses to disable 
modification time by setting {{dfs.namenode.accesstime.precision}} to 0, then 
attempts to use the {{-p}} flag all fail with "Access time for hdfs is not 
configured."  This issue proposes to introduce separate options for preserving 
just ownership, just mode, or just times.  For backwards compatibility, the 
behavior of a bare {{-p}} must continue to be preserving all 3.



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