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https://issues.apache.org/jira/browse/HDFS-2653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13168363#comment-13168363
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Hudson commented on HDFS-2653:
------------------------------
Integrated in Hadoop-Mapreduce-0.23-Build #124 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-0.23-Build/124/])
HDFS-2653. svn merge -c 1213586 from trunk
eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1213589
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* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth
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> DFSClient should cache whether addrs are non-local when short-circuiting is
> enabled
> -----------------------------------------------------------------------------------
>
> Key: HDFS-2653
> URL: https://issues.apache.org/jira/browse/HDFS-2653
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: data-node
> Affects Versions: 0.23.1, 1.0.0
> Reporter: Eli Collins
> Assignee: Eli Collins
> Fix For: 0.23.1, 1.1.0
>
> Attachments: hdfs-2653-1.patch, hdfs-2653-2.patch, hdfs-2653-2.patch,
> hdfs-2653-b1-1.patch, hdfs-2653-b1-2.patch
>
>
> Something Todd mentioned to me off-line.. currently DFSClient doesn't cache
> the fact that non-local reads are non-local, so if short-circuiting is
> enabled every time we create a block reader we'll go through the
> isLocalAddress code path. We should cache the fact that an addr is non-local
> as well.
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