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https://issues.apache.org/jira/browse/HDFS-8903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kai Zheng resolved HDFS-8903.
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Resolution: Duplicate
> Uses ByteBuffer on heap or direct ByteBuffer according to used erasure coder
> in striping write
> ----------------------------------------------------------------------------------------------
>
> Key: HDFS-8903
> URL: https://issues.apache.org/jira/browse/HDFS-8903
> 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 write, 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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