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https://issues.apache.org/jira/browse/HADOOP-8258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HADOOP-8258:
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Component/s: performance
> Add interfaces for compression codecs to use direct byte buffers
> ----------------------------------------------------------------
>
> Key: HADOOP-8258
> URL: https://issues.apache.org/jira/browse/HADOOP-8258
> Project: Hadoop Common
> Issue Type: New Feature
> Components: io, native, performance
> 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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