Speed up DFS read path
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Key: HDFS-2080
URL: https://issues.apache.org/jira/browse/HDFS-2080
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs client
Affects Versions: 0.23.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon
Fix For: 0.23.0
I've developed a series of patches that speeds up the HDFS read path by a
factor of about 2.5x (~300M/sec to ~800M/sec for localhost reading from buffer
cache) and also will make it easier to allow for advanced users (eg hbase) to
skip a buffer copy.
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