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https://issues.apache.org/jira/browse/HDFS-8668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15412992#comment-15412992
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SammiChen commented on HDFS-8668:
---------------------------------
Thanks for Kai's suggestion. The heap buffer convert process is removed by
refine the code, use calculateChunkedSums(ByteBuffer data, ByteBuffer
checksums) to calculate the checksume.
> 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
>
>
> 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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