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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-11798) Native raw erasure coder in XOR codes
Date Fri, 17 Apr 2015 01:31:59 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-11798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tsz Wo Nicholas Sze updated HADOOP-11798:
    Parent Issue: HADOOP-11842  (was: HADOOP-11264)

> Native raw erasure coder in XOR codes
> -------------------------------------
>                 Key: HADOOP-11798
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11798
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: io
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>             Fix For: HDFS-7285
> Raw XOR coder is utilized in Reed-Solomon erasure coder in an optimization to recover
only one erased block which is in most often case. It can also be used in HitchHiker coder.
Therefore a native implementation of it would be deserved for performance gain.

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