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https://issues.apache.org/jira/browse/HDFS-8902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14699579#comment-14699579
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Yi Liu edited comment on HDFS-8902 at 8/17/15 2:15 PM:
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Kai, HDFS-8668 will handle the java bytebuffer and direct buffer for all EC
related encoding/decoding, so I think several new JIRAs related to this you
just created are duplicated.
If you want, you can take that JIRA, but I think we can handle them all in one
JIRA, no need to create separate JIRAs.
was (Author: hitliuyi):
Kai, HDFS-8668 will handle the java bytebuffer and direct buffer for all EC
related encoding/decoding, so I think several new JIRAs you just created are
duplicated.
If you want, you can take that JIRA, but I think we can handle them all in one
JIRA, no need to create separate JIRAs.
> 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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