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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8347) Erasure Coding: whether to use chunkSize as the to decode buffersize for Datanode striped block reconstruction.
Date Fri, 08 May 2015 07:26:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14534027#comment-14534027
] 

Kai Zheng commented on HDFS-8347:
---------------------------------

I got your rational. Thanks for clarifying. I thought you're right if a code is a simple linear
computing of byte by byte so no worry about any coding boundary. 

> Erasure Coding: whether to use chunkSize as the to decode buffersize for Datanode striped
block reconstruction.
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8347
>                 URL: https://issues.apache.org/jira/browse/HDFS-8347
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>
> Currently decode buffersize for Datanode striped block reconstruction is configurable
and can be less or larger than chunksize, it may cause issue for Hitchhiker which may require
encode/decode using same buffersize.



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