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https://issues.apache.org/jira/browse/HDFS-7679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Li Bo updated HDFS-7679:
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    Attachment: ECEncodeDecodeFramework.patch

> EC encode/decode framework
> --------------------------
>
>                 Key: HDFS-7679
>                 URL: https://issues.apache.org/jira/browse/HDFS-7679
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Li Bo
>            Assignee: Li Bo
>         Attachments: ECEncodeDecodeFramework.patch
>
>
> EC tasks such as client striping write, encode replicated file to EC style,  
> transform block layout from contiguous to striping, reconstruct some corrupt 
> blocks, etc, have similar behavior. They all read data from 
> client/BlockGroup, encode/decode them, and write the results to some 
> datanodes. So we can use a unified framework to handle all these tasks. We 
> can use different BlockGroupReader, Coder(ECEncoder/ECDecoder) and 
> BlockWriter to handle different EC tasks.



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