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From "SammiChen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8668) Erasure Coding: revisit buffer used for encoding and decoding.
Date Wed, 10 Aug 2016 13:41:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15415276#comment-15415276
] 

SammiChen commented on HDFS-8668:
---------------------------------

1. fix checkstyle
2. allocate direct ByteBuffer for checksumBuf per native CRC32 calculation requirement 

> Erasure Coding: revisit buffer used for encoding and decoding.
> --------------------------------------------------------------
>
>                 Key: HDFS-8668
>                 URL: https://issues.apache.org/jira/browse/HDFS-8668
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Yi Liu
>            Assignee: SammiChen
>         Attachments: HDFS-8668-v1.patch, HDFS-8668-v2.patch, HDFS-8668-v3.patch, HDFS-8668-v4.patch,
HDFS-8668-v5.patch, HDFS-8668-v6.patch
>
>
> For encoding and decoding buffers, currently some places use java heap ByteBuffer,  some
use direct byteBUffer, and some use java byte array.  If the coder implementation is native,
we should use direct ByteBuffer. This jira is to  revisit all encoding/decoding buffers and
improve them.



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