Add a capability to use of consistent checksums for append and copy
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Key: HADOOP-8060
URL: https://issues.apache.org/jira/browse/HADOOP-8060
Project: Hadoop Common
Issue Type: Bug
Components: fs, util
Affects Versions: 0.23.0, 0.24.0, 0.23.1
Reporter: Kihwal Lee
Assignee: Kihwal Lee
Fix For: 0.24.0, 0.23.2
After the improved CRC32C checksum feature became default, some of use cases
involving data movement are no longer supported. For example, when running
DistCp to copy from a file stored with the CRC32 checksum to a new cluster with
the CRC32C set to default checksum, the final data integrity check fails
because of mismatch in checksums.
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