Zhe Zhang created HDFS-7715:
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             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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