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https://issues.apache.org/jira/browse/HDFS-8902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14699582#comment-14699582
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Kai Zheng commented on HDFS-8902:
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Thanks [~hitliuyi] for the pointer! I didn't notice HDFS-8668 and I thought I
could use it to relate all the related issues. My dirty code indicated that all
the required change isn't trivial and would be better to break down into
pieces, at least two or three. Yes I can take HDFS-8668 and see how it would be
better to proceed. Sounds good? Thanks.
> Uses ByteBuffer on heap or direct ByteBuffer according to used erasure coder
> in striping read (position and stateful)
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-8902
> URL: https://issues.apache.org/jira/browse/HDFS-8902
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Kai Zheng
> Assignee: Kai Zheng
>
> We would choose ByteBuffer on heap or direct ByteBuffer according to used
> erasure coder in striping read (position and stateful), for performance
> consideration. Pure Java implemented coder favors on heap one, though native
> coder likes more direct one, avoiding data copy.
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