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https://issues.apache.org/jira/browse/HADOOP-2597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jim Kellerman resolved HADOOP-2597.
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Resolution: Duplicate
> [hbase] Performance - add a block cache
> ---------------------------------------
>
> 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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