freeznet commented on a change in pull request #12013:
URL: https://github.com/apache/pulsar/pull/12013#discussion_r709726464
##########
File path: pulsar-function-go/pf/instance.go
##########
@@ -75,9 +77,20 @@ func newGoInstance() *goInstance {
return producer
}
+ metricsLabels := goInstance.getMetricsLabels()
+
+ var userMetrics sync.Map
+ goInstance.context.recordMetric = func(metricName string, metricValue
float64) {
+ v, ok := userMetrics.Load(metricName)
+ if !ok {
+ v, _ = userMetrics.LoadOrStore(metricName,
userMetricSummary.WithLabelValues(append(metricsLabels, metricName)...))
+ }
+ v.(prometheus.Observer).Observe(metricValue)
+ }
+
Review comment:
Can we move this part to `context.go`?
##########
File path: pulsar-function-go/pf/stats.go
##########
@@ -122,6 +126,11 @@ var (
prometheus.GaugeOpts{
Name: PulsarFunctionMetricsPrefix + "system_exception",
Help: "Exception from system code."},
exceptionMetricsLabelNames)
+
+ userMetricSummary = prometheus.NewSummaryVec(
+ prometheus.SummaryOpts{
+ Name: PulsarFunctionMetricsPrefix + UserMetric,
+ Help: "Pulsar Function user defined metric"},
userMetricLabelNames)
Review comment:
please make sure the go's metrics are same as the java's
https://github.com/apache/pulsar/blob/3231caa894a24fa9048adf4628316d280d02c679/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/ContextImpl.java#L204-L214
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