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https://issues.apache.org/jira/browse/HADOOP-11009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14145423#comment-14145423
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Allen Wittenauer commented on HADOOP-11009:
-------------------------------------------
It doesn't look like -p automatically preserves time stamp:
{code}
$ bin/hadoop distcp -p /tmp /a1
...
$ bin/hadoop distcp -pt /tmp /a2
...
$ bin/hadoop fs -ls -R /
drwxr-x--- - aw hdfs 0 2014-09-23 13:52 /a1
-rw-r----- 3 aw hdfs 236 2014-09-23 13:52 /a1/hosts
drwxr-x--- - aw hdfs 0 2014-09-23 13:16 /a2
-rw-r----- 3 aw hdfs 236 2014-09-23 13:16 /a2/hosts
...
drwxr-x--- - aw hdfs 0 2014-09-23 13:16 /tmp
-rw-r----- 3 aw hdfs 236 2014-09-23 13:16 /tmp/hosts
...
{code}
> Add Timestamp Preservation to DistCp
> ------------------------------------
>
> Key: HADOOP-11009
> URL: https://issues.apache.org/jira/browse/HADOOP-11009
> Project: Hadoop Common
> Issue Type: Improvement
> Components: tools/distcp
> Affects Versions: 2.4.0
> Reporter: Gary Steelman
> Assignee: Gary Steelman
> Attachments: HADOOP-11009.1.patch, HADOOP-11009.2.patch,
> HADOOP-11009.3.patch
>
>
> Currently access and modification times are not preserved on files copied
> using DistCp. This patch adds an option to DistCp for timestamp preservation.
> The patch ready, but I understand there is a Contributor form I need to sign
> before I can upload it. Can someone point me in the right direction for this
> form? Thanks!
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