Benjamin Mahler created MESOS-9237:
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Summary: Add http handler metrics in libprocess.
Key: MESOS-9237
URL: https://issues.apache.org/jira/browse/MESOS-9237
Project: Mesos
Issue Type: Improvement
Components: libprocess, metrics
Reporter: Benjamin Mahler
In a similar spirit to MESOS-9235, we can introduce per-route http metrics in
libprocess to get a better sense of how long responses take to complete:
* The biggest window of time that we can measure is: time from parsing a
request, to finishing {{send()}}ing all of the data for its response.
* An interesting subset of this time is how long it took from executing the
handler to the response future being ready.
* Other interesting subsets of the overall time is how long it took us before
we could execute the handler (e.g. routing delay, actor queueing delay), and
how long it took us to send it to the os (e.g. I/O saturation, backpressure
from a slow client, etc).
These metrics would ideally have histogram like distributions (e.g. percentiles
over a window).
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