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https://issues.apache.org/jira/browse/HDFS-5386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13802992#comment-13802992
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Chris Nauroth commented on HDFS-5386:
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Thanks for the patch, Colin. I plan to review this later today.
> Add feature documentation for datanode caching.
> -----------------------------------------------
>
> Key: HDFS-5386
> URL: https://issues.apache.org/jira/browse/HDFS-5386
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: documentation
> Affects Versions: HDFS-4949
> Reporter: Chris Nauroth
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-5386-caching.001.patch
>
>
> Write feature documentation for datanode caching, covering all of the
> following:
> * high-level architecture
> * OS/native code requirements
> * OS configuration (ulimit -l)
> * new configuration properties for namenode and datanode
> * cache admin CLI commands
> * pointers to API for programmatic control of caching directives
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