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https://issues.apache.org/jira/browse/CASSANDRA-7247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14142509#comment-14142509
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Brandon Williams commented on CASSANDRA-7247:
---------------------------------------------

Totally missed this when I made CASSANDRA-7974, but I'm not surprised Chris and 
I think alike. :)

> 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
>            Assignee: Chris Lohfink
>            Priority: Minor
>         Attachments: cassandra-2.1-7247.txt, jconsole.png, patch.txt
>
>
> 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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