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Posted to common-dev@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2014/07/18 17:31:06 UTC

[jira] [Created] (HADOOP-10859) Native implementation of java Checksum interface

Todd Lipcon created HADOOP-10859:
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             Summary: Native implementation of java Checksum interface
                 Key: HADOOP-10859
                 URL: https://issues.apache.org/jira/browse/HADOOP-10859
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon
            Priority: Minor


Some parts of our code such as IFileInputStream/IFileOutputStream use the java Checksum interface to calculate/verify checksums. Currently we don't have a native implementation of these. For CRC32C in particular, we can get a very big speedup with a native implementation.



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