Chris Nauroth created HDFS-5386:
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Summary: Add feature documentation for datanode caching.
Key: HDFS-5386
URL: https://issues.apache.org/jira/browse/HDFS-5386
Project: Hadoop HDFS
Issue Type: Improvement
Components: documentation
Affects Versions: HDFS-4949
Reporter: Chris Nauroth
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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