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From "Liyin Tang (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-5383) Prevent the compaction read requests from changing the hotness of block cache
Date Fri, 10 Feb 2012 20:14:59 GMT
Prevent the compaction read requests from changing the hotness of block cache
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                 Key: HBASE-5383
                 URL: https://issues.apache.org/jira/browse/HBASE-5383
             Project: HBase
          Issue Type: Improvement
            Reporter: Liyin Tang
            Assignee: Liyin Tang


Block cache is organized in an sorted way based on LRU or some other algorithm and it will
age out some blocks when the algorithm believes these blocks are not hot any more. 
The motivation here is to prevent the compaction read requests from changing the hotness of
block cache. 

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