Github user joshelser commented on the issue:
https://github.com/apache/accumulo/pull/260
> Exactly what metrics are we looking for here?
A trivial counter for the number of times a Scanner yield'ed is what I was
thinking. That will let us measure it over time (Metrics2's "windowing" stuff
going on in the background). There is a "MutableCounter" which you can
instantiate from the MetricsRegistry object in Metrics2TabletServerScanMetrics
which should precisely what you need (I really am not be facetious/sarcastic
implying that this should be quite simple)
> Are we looking for simply how many times we see a scan yielding? Are we
looking for the time between the beginning of the next/seek call and the yield?
I don't see anything that times next and seek calls now.....
Yeah scan metrics are extremely "light" at present. Not expecting any
extreme level of effort here. Yet another back-burner task of mine :)
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