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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-9967) Zero copies in hdfs-nfs
Date Mon, 16 Sep 2013 19:22:52 GMT
Haohui Mai created HADOOP-9967:
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             Summary: Zero copies in hdfs-nfs
                 Key: HADOOP-9967
                 URL: https://issues.apache.org/jira/browse/HADOOP-9967
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Haohui Mai


There are multiple copies in the NFS request / response paths. For example, The RPCFrameDecoder
class always copies the data. Currently these copies are mandatory, due to the inflexibilities
of several internal APIs.

Using the ChannelBuffer class in the APIs should these excessive copies in the NFS path.

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