Merge pull request #119110 from andrewsykim/apf-metrics-beta

Promote kube-apiserver flowcontrol metrics to Beta

staging/src/k8s.io/apiserver/pkg/util/flowcontrol/fairqueuing/queueset/queueset_test.go

@@ -379,7 +379,7 @@ func (uss *uniformScenarioState) finalReview() {
 	}
 	if uss.evalInqueueMetrics {
 		e := `
-				# HELP apiserver_flowcontrol_current_inqueue_requests [ALPHA] Number of requests currently pending in queues of the API Priority and Fairness subsystem
+				# HELP apiserver_flowcontrol_current_inqueue_requests [BETA] Number of requests currently pending in queues of the API Priority and Fairness subsystem
 				# TYPE apiserver_flowcontrol_current_inqueue_requests gauge
 ` + uss.expectedInqueue
 		err := metrics.GatherAndCompare(e, "apiserver_flowcontrol_current_inqueue_requests")
@@ -402,7 +402,7 @@ func (uss *uniformScenarioState) finalReview() {
 	}
 	if uss.evalExecutingMetrics && len(uss.expectedExecuting) > 0 {
 		e := `
-				# HELP apiserver_flowcontrol_current_executing_requests [ALPHA] Number of requests in initial (for a WATCH) or any (for a non-WATCH) execution stage in the API Priority and Fairness subsystem
+				# HELP apiserver_flowcontrol_current_executing_requests [BETA] Number of requests in initial (for a WATCH) or any (for a non-WATCH) execution stage in the API Priority and Fairness subsystem
 				# TYPE apiserver_flowcontrol_current_executing_requests gauge
 ` + uss.expectedExecuting
 		err := metrics.GatherAndCompare(e, "apiserver_flowcontrol_current_executing_requests")
@@ -426,7 +426,7 @@ func (uss *uniformScenarioState) finalReview() {
 	}
 	if uss.evalExecutingMetrics && len(expectedRejects) > 0 {
 		e := `
-				# HELP apiserver_flowcontrol_rejected_requests_total [ALPHA] Number of requests rejected by API Priority and Fairness subsystem
+				# HELP apiserver_flowcontrol_rejected_requests_total [BETA] Number of requests rejected by API Priority and Fairness subsystem
 				# TYPE apiserver_flowcontrol_rejected_requests_total counter
 ` + expectedRejects
 		err := metrics.GatherAndCompare(e, "apiserver_flowcontrol_rejected_requests_total")

staging/src/k8s.io/apiserver/pkg/util/flowcontrol/metrics/metrics.go

@@ -94,7 +94,7 @@ var (
 			Subsystem:      subsystem,
 			Name:           "rejected_requests_total",
 			Help:           "Number of requests rejected by API Priority and Fairness subsystem",
-			StabilityLevel: compbasemetrics.ALPHA,
+			StabilityLevel: compbasemetrics.BETA,
 		},
 		[]string{priorityLevel, flowSchema, "reason"},
 	)
@@ -104,7 +104,7 @@ var (
 			Subsystem:      subsystem,
 			Name:           "dispatched_requests_total",
 			Help:           "Number of requests executed by API Priority and Fairness subsystem",
-			StabilityLevel: compbasemetrics.ALPHA,
+			StabilityLevel: compbasemetrics.BETA,
 		},
 		[]string{priorityLevel, flowSchema},
 	)
@@ -206,7 +206,7 @@ var (
 			Subsystem:      subsystem,
 			Name:           "current_inqueue_requests",
 			Help:           "Number of requests currently pending in queues of the API Priority and Fairness subsystem",
-			StabilityLevel: compbasemetrics.ALPHA,
+			StabilityLevel: compbasemetrics.BETA,
 		},
 		[]string{priorityLevel, flowSchema},
 	)
@@ -237,7 +237,7 @@ var (
 			Subsystem:      subsystem,
 			Name:           "current_executing_requests",
 			Help:           "Number of requests in initial (for a WATCH) or any (for a non-WATCH) execution stage in the API Priority and Fairness subsystem",
-			StabilityLevel: compbasemetrics.ALPHA,
+			StabilityLevel: compbasemetrics.BETA,
 		},
 		[]string{priorityLevel, flowSchema},
 	)
@@ -247,7 +247,7 @@ var (
 			Subsystem:      subsystem,
 			Name:           "current_executing_seats",
 			Help:           "Concurrency (number of seats) occupied by the currently executing (initial stage for a WATCH, any stage otherwise) requests in the API Priority and Fairness subsystem",
-			StabilityLevel: compbasemetrics.ALPHA,
+			StabilityLevel: compbasemetrics.BETA,
 		},
 		[]string{priorityLevel, flowSchema},
 	)
@@ -269,7 +269,7 @@ var (
 			Name:           "request_wait_duration_seconds",
 			Help:           "Length of time a request spent waiting in its queue",
 			Buckets:        requestDurationSecondsBuckets,
-			StabilityLevel: compbasemetrics.ALPHA,
+			StabilityLevel: compbasemetrics.BETA,
 		},
 		[]string{priorityLevel, flowSchema, "execute"},
 	)
@@ -334,7 +334,7 @@ var (
 			Subsystem:      subsystem,
 			Name:           "nominal_limit_seats",
 			Help:           "Nominal number of execution seats configured for each priority level",
-			StabilityLevel: compbasemetrics.ALPHA,
+			StabilityLevel: compbasemetrics.BETA,
 		},
 		[]string{priorityLevel},
 	)

test/instrumentation/testdata/stable-metrics-list.yaml

@@ -409,6 +409,88 @@
   stabilityLevel: STABLE
   labels:
   - resource
+- name: current_executing_requests
+  subsystem: flowcontrol
+  namespace: apiserver
+  help: Number of requests in initial (for a WATCH) or any (for a non-WATCH) execution
+    stage in the API Priority and Fairness subsystem
+  type: Gauge
+  stabilityLevel: BETA
+  labels:
+  - flow_schema
+  - priority_level
+- name: current_executing_seats
+  subsystem: flowcontrol
+  namespace: apiserver
+  help: Concurrency (number of seats) occupied by the currently executing (initial
+    stage for a WATCH, any stage otherwise) requests in the API Priority and Fairness
+    subsystem
+  type: Gauge
+  stabilityLevel: BETA
+  labels:
+  - flow_schema
+  - priority_level
+- name: current_inqueue_requests
+  subsystem: flowcontrol
+  namespace: apiserver
+  help: Number of requests currently pending in queues of the API Priority and Fairness
+    subsystem
+  type: Gauge
+  stabilityLevel: BETA
+  labels:
+  - flow_schema
+  - priority_level
+- name: dispatched_requests_total
+  subsystem: flowcontrol
+  namespace: apiserver
+  help: Number of requests executed by API Priority and Fairness subsystem
+  type: Counter
+  stabilityLevel: BETA
+  labels:
+  - flow_schema
+  - priority_level
+- name: nominal_limit_seats
+  subsystem: flowcontrol
+  namespace: apiserver
+  help: Nominal number of execution seats configured for each priority level
+  type: Gauge
+  stabilityLevel: BETA
+  labels:
+  - priority_level
+- name: rejected_requests_total
+  subsystem: flowcontrol
+  namespace: apiserver
+  help: Number of requests rejected by API Priority and Fairness subsystem
+  type: Counter
+  stabilityLevel: BETA
+  labels:
+  - flow_schema
+  - priority_level
+  - reason
+- name: request_wait_duration_seconds
+  subsystem: flowcontrol
+  namespace: apiserver
+  help: Length of time a request spent waiting in its queue
+  type: Histogram
+  stabilityLevel: BETA
+  labels:
+  - execute
+  - flow_schema
+  - priority_level
+  buckets:
+  - 0
+  - 0.005
+  - 0.02
+  - 0.05
+  - 0.1
+  - 0.2
+  - 0.5
+  - 1
+  - 2
+  - 5
+  - 10
+  - 15
+  - 30
 - name: healthcheck
   namespace: kubernetes
   help: This metric records the result of a single healthcheck.