[HDFS-496] Use PureJavaCrc32 in HDFS

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.21.0
• Fix Version/s: 0.21.0, 1.1.0, 1-win
• Component/s: datanode, hdfs-client, performance
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 21/Jul/09 22:17
• Updated: 02/Apr/13 23:59
• Resolved: 31/Jul/09 18:43

Description

Common now has a pure java CRC32 implementation which is more efficient than java.util.zip.CRC32. This issue is to make use of it.

Issue Links

• is related to: HADOOP-8617 backport pure Java CRC32 calculator changes to branch-1
• is related to: HADOOP-6148 Implement a pure Java CRC32 calculator