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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-11646) Erasure Coder API for encoding and decoding of block group
Date Fri, 06 Mar 2015 07:17:38 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-11646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kai Zheng updated HADOOP-11646:
-------------------------------
    Description: 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 HADOOP-11514 to perform concrete encoding or decoding. Note this mainly focuses
on the basic fundamental aspects, and solves encoding, data blocks recovering and etc. Regarding
parity blocks recovering, as it involves multiple steps, HADOOP-11550 will handle it.  (was:
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.)

> Erasure Coder API for encoding and decoding of block group
> ----------------------------------------------------------
>
>                 Key: HADOOP-11646
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11646
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>             Fix For: HDFS-7285
>
>         Attachments: HADOOP-11646-v4.patch, 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
HADOOP-11514 to perform concrete encoding or decoding. Note this mainly focuses on the basic
fundamental aspects, and solves encoding, data blocks recovering and etc. Regarding parity
blocks recovering, as it involves multiple steps, HADOOP-11550 will handle it.



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