Low Latency distributed reads
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Key: HDFS-516
URL: https://issues.apache.org/jira/browse/HDFS-516
Project: Hadoop HDFS
Issue Type: New Feature
Reporter: Jay Booth
Priority: Minor
I created a method for low latency random reads using NIO on the server side
and simulated OS paging with LRU caching and lookahead on the client side.
Some applications could include lucene searching (term->doc and doc->offset
mappings are likely to be in local cache, thus much faster than nutch's current
FsDirectory impl and binary search through record files (bytes at 1/2, 1/4, 1/8
marks are likely to be cached)
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