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feat: enable native histograms in operator metrics

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Signed-off-by: Simon Pasquier <spasquie@redhat.com>
This commit is contained in:
Simon Pasquier
2025-12-19 12:07:16 +01:00
parent c8e56f6d94
commit fe13a42b2b
2 changed files with 19 additions and 9 deletions
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1
CHANGELOG.md
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@@ -3,6 +3,7 @@
* [FEATURE] Add `podManagementPolicy` field for `Prometheus`, `PrometheusAgent`, `Alertmanager` and `ThanosRuler` CRDs. #8119
* [FEATURE] Add `updateStrategy` field for `Prometheus`, `PrometheusAgent`, `Alertmanager` and `ThanosRuler` CRDs. #8202
* [ENHANCEMENT] Use `.spec.minReadySeconds` to delay the first flush of aggregation groups in Alertmanager. #8201
* [ENHANCEMENT] Update operator instrumentation to expose native histograms. #8194
## 0.87.1 / 2025-12-10

27
pkg/operator/resource_reconciler.go
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@@ -133,17 +133,23 @@ func newWorkQueueMetricsProvider(reg prometheus.Registerer) *workQueueMetricsPro
),
latency: prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "prometheus_operator_workqueue_latency_seconds",
Help: "Histogram of latency for the queue",
Buckets: []float64{.1, .5, 1, 5, 10},
Name: "prometheus_operator_workqueue_latency_seconds",
Help: "Histogram of latency for the queue",
Buckets: []float64{.1, .5, 1, 5, 10},
NativeHistogramBucketFactor: 1.1,
NativeHistogramMaxBucketNumber: 100,
NativeHistogramMinResetDuration: 1 * time.Hour,
},
[]string{"name"},
),
workDuration: prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "prometheus_operator_workqueue_work_duration_seconds",
Help: "Histogram of work duration for the queue",
Buckets: []float64{.1, .5, 1, 5, 10},
Name: "prometheus_operator_workqueue_work_duration_seconds",
Help: "Histogram of work duration for the queue",
Buckets: []float64{.1, .5, 1, 5, 10},
NativeHistogramBucketFactor: 1.1,
NativeHistogramMaxBucketNumber: 100,
NativeHistogramMinResetDuration: 1 * time.Hour,
},
[]string{"name"},
),
@@ -232,9 +238,12 @@ func NewResourceReconciler(
})
reconcileDuration := prometheus.NewHistogram(prometheus.HistogramOpts{
Name: "prometheus_operator_reconcile_duration_seconds",
Help: "Histogram of reconcile operations",
Buckets: []float64{.1, .5, 1, 5, 10},
Name: "prometheus_operator_reconcile_duration_seconds",
Help: "Histogram of reconcile operations",
Buckets: []float64{.1, .5, 1, 5, 10},
NativeHistogramBucketFactor: 1.1,
NativeHistogramMaxBucketNumber: 100,
NativeHistogramMinResetDuration: 1 * time.Hour,
})
statusTotal := prometheus.NewCounter(prometheus.CounterOpts{