com.twitter.scalding.reducer_estimation
Compute the average ratio of mapper bytes to reducer bytes and use that to scale the estimate produced by InputSizeReducerEstimator.
Compute the average ratio of mapper bytes to reducer bytes and use that to scale the estimate produced by InputSizeReducerEstimator.
Holds information about the overall flow (.flow), previously-run steps (.predecessorSteps), and the current step (.step).
Number of reducers recommended by the estimator, or None to keep the default.