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From "Ben Manes (JIRA)" <>
Subject [jira] [Created] (ACCUMULO-4177) TinyLFU-based BlockCache
Date Sat, 02 Apr 2016 19:10:25 GMT
Ben Manes created ACCUMULO-4177:

             Summary: TinyLFU-based BlockCache
                 Key: ACCUMULO-4177
             Project: Accumulo
          Issue Type: Improvement
            Reporter: Ben Manes

appears to be based on HBase's. I currently have a patch being reviewed in [HBASE-15560|]
that replaces the pseudo Segmented LRU with the TinyLFU eviction policy. That should allow
the cache to make [better predictions|]
based on frequency and recency, such as improved scan resistance. The implementation uses
[Caffeine|], the successor to Guava's cache, to provide
concurrency and keep the patch small.

Full details are in the JIRA ticket. I think it should be easy to port if there is interest.

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