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