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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