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Function-based metrics for CE

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OpenFaaS CE exposes metrics about function invocations and
about the gateway itself. OpenFaaS Pro has a richer set of
metrics including HTTP RED.

See also: https://docs.openfaas.com/architecture/metrics/

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This commit is contained in:
Alex Ellis (OpenFaaS Ltd)
2023-01-28 09:10:48 +00:00
parent c26ec5221e
commit a128df471f
4 changed files with 2 additions and 52 deletions
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6
gateway/metrics/exporter.go
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@ -46,9 +46,6 @@ func (e *Exporter) Describe(ch chan<- *prometheus.Desc) {
e.metricOptions.GatewayFunctionsHistogram.Describe(ch)
e.metricOptions.ServiceReplicasGauge.Describe(ch)
e.metricOptions.GatewayFunctionInvocationStarted.Describe(ch)
e.metricOptions.ServiceMetrics.Counter.Describe(ch)
e.metricOptions.ServiceMetrics.Histogram.Describe(ch)
}
// Collect collects data to be consumed by prometheus
@ -75,9 +72,6 @@ func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
}
e.metricOptions.ServiceReplicasGauge.Collect(ch)
e.metricOptions.ServiceMetrics.Counter.Collect(ch)
e.metricOptions.ServiceMetrics.Histogram.Collect(ch)
}
// StartServiceWatcher starts a ticker and collects service replica counts to expose to prometheus