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From "Todd Lipcon (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-8258) Add interfaces for compression codecs to use direct byte buffers
Date Fri, 06 Apr 2012 23:10:15 GMT
Add interfaces for compression codecs to use direct byte buffers
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                 Key: HADOOP-8258
                 URL: https://issues.apache.org/jira/browse/HADOOP-8258
             Project: Hadoop Common
          Issue Type: New Feature
          Components: io, native
    Affects Versions: 3.0.0
            Reporter: Todd Lipcon


Currently, the codec interface only provides input/output functions based on byte arrays.
Given that most of the codecs are implemented in native code, this necessitates two extra
copies - one to copy the input data to a direct buffer, and one to copy the output data back
to a byte array. We should add interfaces to Decompressor/Compressor that can work directly
with direct byte buffers to avoid these copies.

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