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From "Xiaoyu Yao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-9843) Document distcp options required for copying between encrypted locations
Date Mon, 22 Feb 2016 22:53:18 GMT
Xiaoyu Yao created HDFS-9843:
--------------------------------

             Summary: Document distcp options required for copying between encrypted locations
                 Key: HDFS-9843
                 URL: https://issues.apache.org/jira/browse/HDFS-9843
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Xiaoyu Yao
            Assignee: Xiaoyu Yao


In TransparentEncryption.md#Distcp_considerations document section, we have "Copying_between_encrypted_and_unencrypted_locations"
which requires -skipcrccheck and -update. 

These options should be documented as required for "Copying between encrypted locations" use
cases as well because this involves decrypting source file and encrypting destination file
with a different EDEK, resulting in different checksum at the destination. Distcp will fail
at crc check if -skipcrccheck if not specified.

This ticket is opened to document the required options for "Copying between encrypted locations"
use cases when using distcp with HDFS encryption. 



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