Timestamp preservation was added back into DistCp as part of HADOOP-11009 but the documentation wasn't updated. The documentation should be updated.
Improve DistCp Help and documentation
Add Timestamp Preservation to DistCp
Hi Gary Steelman, thanks for adding the timestamp preservation feature in distcp. HDFS-9638 added timestamp preservation doc but it's not yet in Hadoop 2.7.2.
Hi Wei-Chiu Chuang, do you think HDFS-9638 should be backported to branch-2.7?
Hi Akira Ajisaka,
I'm not sure about upstream versioning, but one of the parameter mentioned in HDFS-9638 was implemented in HADOOP-11827 and is part of 2.8.0. I can definitely do a branch-2.7 only patch though.
Thank you Wei-Chiu Chuang! I would really appreciate if you could provide a patch for branch-2.7.
Sure. I'm not sure where should I upload the patch, so I'll put it here.
This is basically HDFS-9638 minus numListstatusThreads option in the docs. Thanks and please review.
This message was automatically generated.
All warnings are false positives, and unrelated to this patch.
Committed this to branch-2.7. Thanks Wei-Chiu Chuang for the contribution!
Closing the JIRA as part of 2.7.3 release.