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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11514) Raw Erasure Coder API for concrete encoding and decoding
Date Thu, 29 Jan 2015 03:22:35 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14296325#comment-14296325
] 

Kai Zheng commented on HADOOP-11514:
------------------------------------

Hi [~umamaheswararao],

Thanks for looking at this. 
bq.Seems like we may need to update this interface comments here. RawErasureCoder is not really
doing encoding/decoding by its interfaces declared. This sounds to some helper interface for
real encode/decoder interfaces. 
It's a good thought. Yes itself doesn't do any real work but is just a helper, on the other
hand, it also serves as a good concept for our discussion since it's not convenient to mention
encoder or decoder in many general aspects.

You're right I need to update the comments to make it accurate. Thanks !

> Raw Erasure Coder API for concrete encoding and decoding
> --------------------------------------------------------
>
>                 Key: HADOOP-11514
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11514
>             Project: Hadoop Common
>          Issue Type: Sub-task
>    Affects Versions: HDFS-EC
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>         Attachments: HDFS-7353-v1.patch, HDFS-7353-v2.patch, HDFS-7353-v3.patch, HDFS-7353-v4.patch,
HDFS-7353-v5.patch, HDFS-7353-v6.patch, HDFS-7353-v7.patch
>
>
> This is to abstract and define raw erasure coder API across different codes algorithms
like RS, XOR and etc. Such API can be implemented by utilizing various library support, such
as Intel ISA library and Jerasure library.



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