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https://issues.apache.org/jira/browse/HDFS-2653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eli Collins updated HDFS-2653:
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Target Version/s: 0.23.1, 1.1.0 (was: 1.1.0, 0.23.1)
Status: Open (was: Patch Available)
> 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
> 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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