Adding Files to an Encryption Zone
You can add files to an encryption zone by copying them to the encryption zone using
distcp.
For
example:
sudo -u hdfs hadoop distcp /user/dir /encryption_zoneCopying data from encrypted locations
By default, distcp compares checksums provided by the filesystem to verify
that data was successfully copied to the destination. When copying from an encrypted
location, the file system checksums will not match because the underlying block data is
different. This is true whether or not the destination location is encrypted or
unencrypted.
In this case, you can specify the -skipcrccheck and
-update flags to avoid verifying checksums. When you use
-skipcrccheck, distcp checks the file integrity by
performing a file size comparison, right after the copy completes for each file.
