You're right. Committed the simplification. On Tue, Jul 13, 2010 at 7:05 PM, Masood Mortazavi <masoodmortaz...@gmail.com> wrote: > In FailureDetector, in ArrivalWindow, in "double p(double t)", > > is > > return 1 - ( 1 - Math.pow(Math.E, exponent) ); > > really needed, instead of > > return Math.pow(Math.E, exponent) ; > > I believe the integral of the the Exponential Distribution from "t" to > infinity leads to the latter value. > > While most Java compilers are probably smart enough to take care of the > redundant subtractions, there's no explanatory value I see in the former > form. I just ran into this as I was reviewing the accrual failure detector > code. > > - m . >
-- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
