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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7715) Implement the Hitchhiker erasure coding algorithm
Date Fri, 30 Jan 2015 22:18:34 GMT
Zhe Zhang created HDFS-7715:
-------------------------------

             Summary: Implement the Hitchhiker erasure coding algorithm
                 Key: HDFS-7715
                 URL: https://issues.apache.org/jira/browse/HDFS-7715
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Zhe Zhang


[Hitchhiker | http://www.eecs.berkeley.edu/~nihar/publications/Hitchhiker_SIGCOMM14.pdf] is
a new erasure coding algorithm developed as a research project at UC Berkeley. It has been
shown to reduce network traffic and disk I/O by 25% and 45% during data reconstruction. This
JIRA aims to introduce Hitchhiker to the HDFS-EC framework, as one of the pluggable codec
algorithms.

The existing implementation is based on HDFS-RAID. 



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