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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7337) Configurable and pluggable Erasure Codec and schema
Date Tue, 04 Nov 2014 07:07:33 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14195818#comment-14195818
] 

Zhe Zhang commented on HDFS-7337:
---------------------------------

[~drankye] Sorry about the confusion. I actually created the JIRA for marking individual files
or directories to be erasure coded (or not). I'll create another JIRA for that purpose, since
we do need this pluggable codec schema support anyway :)

> Configurable and pluggable Erasure Codec and schema
> ---------------------------------------------------
>
>                 Key: HDFS-7337
>                 URL: https://issues.apache.org/jira/browse/HDFS-7337
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Zhe Zhang
>             Fix For: HDFS-EC
>
>
> According to HDFS-7285 and the design, this considers to support multiple Erasure Codecs
via pluggable approach. It allows to define and configure multiple codec schemas
> with different coding algorithms and parameters. The resultant codec schemas can be utilized
and specified via command tool for different file folders. While design and implement such
pluggable framework, it’s also to implement a concrete codec by default (Reed Solomon) to
prove the framework is useful and workable. Separate JIRA could be opened for the RS codec
implementation.



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