Implement a pure Java CRC32 calculator
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Key: HADOOP-5598
URL: https://issues.apache.org/jira/browse/HADOOP-5598
Project: Hadoop Core
Issue Type: Improvement
Components: dfs
Reporter: Owen O'Malley
Assignee: Owen O'Malley
We've seen single replica HDFS write spending too much of their time in crc32
calculation. On a 200 MB write, the crc it is taking 5 seconds of the 6 seconds
total.
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