Clean up and document EstimatedHistogram
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Key: CASSANDRA-2232
URL: https://issues.apache.org/jira/browse/CASSANDRA-2232
Project: Cassandra
Issue Type: Improvement
Reporter: Jonathan Ellis
Assignee: Jonathan Ellis
Priority: Minor
Fix For: 0.7.3
EstimatedHistogram treats adding value n as adding a value infinitesimally
greater than n. This barely made sense for the original goal of latency
tracking but is clearly broken for inherently integral data like
sstables-per-read.
Also, median() is broken, but even a non-broken median() would not be correct
to use in mean row size reporting which is its only caller.
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