[hbase] Performance - add a block cache
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Key: HADOOP-2597
URL: https://issues.apache.org/jira/browse/HADOOP-2597
Project: Hadoop
Issue Type: Improvement
Components: contrib/hbase
Reporter: Tom White
A block cache would cache fixed size blocks (default 64k) of data read from
HDFS by the MapFile. It would help read performance for data close to recently
read data (see Bigtable paper, section 6). It would be configurable on a
per-column family basis.
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