3 unstable releases
0.2.2 | Jun 11, 2019 |
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0.2.0 | May 1, 2019 |
0.1.0 | Apr 24, 2019 |
#19 in #text-based
11KB
175 lines
metrics-recorder-text
metrics-recorder-text is a metric recorder that outputs a hierarchical, text-based format.
code of conduct
NOTE: All conversations and contributions to this project shall adhere to the Code of Conduct.
lib.rs
:
Records metrics in a hierarchical, text-based format.
Metric scopes are used to provide the hierarchy and indentation of metrics. As an example, for
a snapshot with two metrics — server.msgs_received
and server.msgs_sent
— we would
expect to see this output:
root:
server:
msgs_received: 42
msgs_sent: 13
If we added another metric — configuration_reloads
— we would expect to see:
root:
configuration_reloads: 2
server:
msgs_received: 42
msgs_sent: 13
Metrics are sorted alphabetically.
Histograms
Histograms are rendered with a configurable set of quantiles that are provided when creating an
instance of TextRecorder
. They are formatted using human-readable labels when displayed to
the user. For example, 0.0 is rendered as "min", 1.0 as "max", and anything in between using
the common "pXXX" format i.e. a quantile of 0.5 or percentile of 50 would be p50, a quantile of
0.999 or percentile of 99.9 would be p999, and so on.
All histograms have the sample count of the histogram provided in the output.
root:
connect_time count: 15
connect_time min: 1334
connect_time p50: 1934
connect_time p99: 5330
connect_time max: 139389
Dependencies
~1.5MB
~19K SLoC