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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7662) Erasure Coder API for encoding and decoding of block group
Date Tue, 10 Feb 2015 01:07:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14313308#comment-14313308

Kai Zheng commented on HDFS-7662:

The minor XOR ErasureCoder implementation of this API is provided in this patch as intended
for a workable example. The non-trivial Reed-Solomon ErasureCoder will be refined and provided
via HDFS-7664.

> Erasure Coder API for encoding and decoding of block group
> ----------------------------------------------------------
>                 Key: HDFS-7662
>                 URL: https://issues.apache.org/jira/browse/HDFS-7662
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>             Fix For: HDFS-EC
>         Attachments: HDFS-7662-v1.patch, HDFS-7662-v2.patch, HDFS-7662-v3.patch
> This is to define ErasureCoder API for encoding and decoding of BlockGroup. Given a BlockGroup,
ErasureCoder extracts data chunks from the blocks and leverages RawErasureCoder defined in
HDFS-7353 to perform concrete encoding or decoding.

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