Hi, I've checked in the code from 1.2.13 to 1.2.18, and 2.0.9, and I think you should not say that slice statistics are valid for the last five minutes. I've read the documentation from yammer for Histograms and there is no way to force values to expire after x minutes. The only thing I can see is that the last snapshot used to provide the median (or whatever you'd used instead) value is based on 1028 values.
I'm wondering if providing the max value too would be useful. what do you think ? -- Cyril SCETBON