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Posted to hdfs-dev@hadoop.apache.org by "Kai Zheng (JIRA)" <ji...@apache.org> on 2015/12/04 09:22:11 UTC

[jira] [Resolved] (HDFS-8903) Uses ByteBuffer on heap or direct ByteBuffer according to used erasure coder in striping write

     [ https://issues.apache.org/jira/browse/HDFS-8903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kai Zheng resolved HDFS-8903.
-----------------------------
    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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