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http://issues.apache.org/jira/browse/HADOOP-538?page=comments#action_12437531 ]
Arun C Murthy commented on HADOOP-538:
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The above {Com|Decom}pressor interfaces will also need a
public boolean usesDirectBuffer();
api so as to advertise if they are based on 'native' code and can take
advantage of nio's direct buffers. There is no reason of course to stipulate it
since we very well could be using a 'pure java' codec in future.
> Implement a nio's 'direct buffer' based wrapper over zlib to improve
> performance of java.util.zip.{De|In}flater as a 'custom codec'
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-538
> URL: http://issues.apache.org/jira/browse/HADOOP-538
> Project: Hadoop
> Issue Type: Improvement
> Affects Versions: 0.6.1
> Reporter: Arun C Murthy
> Assigned To: Arun C Murthy
> Fix For: 0.7.0
>
>
> There has been more than one instance where java.util.zip's {De|In}flater
> classes perform unreliably, a simple wrapper over zlib-1.2.3 (latest stable)
> using java.nio.ByteBuffer (i.e. direct buffers) should go a long way in
> alleviating these woes.
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