Withdraw CRC upgrade from HDFS
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Key: HADOOP-2797
URL: https://issues.apache.org/jira/browse/HADOOP-2797
Project: Hadoop Core
Issue Type: New Feature
Components: dfs
Affects Versions: 0.13.0
Reporter: Robert Chansler
Priority: Critical
Fix For: 0.17.0
HDFS will no longer support upgrades from versions without CRCs for block data.
Users upgrading from version 0.13 or earlier must first upgrade to an
intermediate (0.14, 0.15, 0.16) version before upgrade to 0.17 or later.
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