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Posted to commits@cassandra.apache.org by "Chris Lohfink (JIRA)" <ji...@apache.org> on 2014/05/16 13:18:52 UTC

[jira] [Created] (CASSANDRA-7247) Provide top ten most frequent keys per column family

Chris Lohfink created CASSANDRA-7247:
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             Summary: Provide top ten most frequent keys per column family
                 Key: CASSANDRA-7247
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7247
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Chris Lohfink
            Priority: Minor
         Attachments: patch.diff

Since already have the nice addthis stream library, can use it to keep track of most frequent DecoratedKeys that come through the system using StreamSummaries ([nice explaination|http://boundary.com/blog/2013/05/14/approximate-heavy-hitters-the-spacesaving-algorithm/]).  Then provide a new metric to access them via JMX.  



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