Stop emitting deprecated metrics

This commit removes the following deprecated metrics that have been
replaced with corresponding metrics.
We have given sufficient time to user to migrate to newer metrics.

Author: khrm

docs/metrics.md

@@ -15,17 +15,11 @@ We expose several kinds of exporters, including Prometheus, Google Stackdriver,
 |-----------------------------------------------------------------------------------------| ----------- |-------------------------------------------------| ----------- |
 | `tekton_pipelines_controller_pipelinerun_duration_seconds_[bucket, sum, count]`         | Histogram/LastValue(Gauge) | `*pipeline`=&lt;pipeline_name&gt; <br> `*pipelinerun`=&lt;pipelinerun_name&gt; <br> `status`=&lt;status&gt; <br> `namespace`=&lt;pipelinerun-namespace&gt; | experimental |
 | `tekton_pipelines_controller_pipelinerun_taskrun_duration_seconds_[bucket, sum, count]` | Histogram/LastValue(Gauge) | `*pipeline`=&lt;pipeline_name&gt; <br> `*pipelinerun`=&lt;pipelinerun_name&gt; <br> `status`=&lt;status&gt; <br> `*task`=&lt;task_name&gt; <br> `*taskrun`=&lt;taskrun_name&gt;<br> `namespace`=&lt;pipelineruns-taskruns-namespace&gt;  <br> `*reason`=&lt;reason&gt; | experimental |
-| `tekton_pipelines_controller_pipelinerun_count` | Counter | `status`=&lt;status&gt;  <br> `*reason`=&lt;reason&gt; | deprecate |
 | `tekton_pipelines_controller_pipelinerun_total` | Counter | `status`=&lt;status&gt;                         | experimental |
-| `tekton_pipelines_controller_running_pipelineruns_count` | Gauge |                                                 | deprecate |
 | `tekton_pipelines_controller_running_pipelineruns` | Gauge |                                                 | experimental |
 | `tekton_pipelines_controller_taskrun_duration_seconds_[bucket, sum, count]` | Histogram/LastValue(Gauge) | `status`=&lt;status&gt; <br> `*task`=&lt;task_name&gt; <br> `*taskrun`=&lt;taskrun_name&gt;<br> `namespace`=&lt;pipelineruns-taskruns-namespace&gt; <br> `*reason`=&lt;reason&gt; | experimental |
-| `tekton_pipelines_controller_taskrun_count` | Counter | `status`=&lt;status&gt; <br> `*reason`=&lt;reason&gt; | deprecate |
 | `tekton_pipelines_controller_taskrun_total` | Counter | `status`=&lt;status&gt;                         | experimental |
-| `tekton_pipelines_controller_running_taskruns_count` | Gauge |                                                 | deprecate |
 | `tekton_pipelines_controller_running_taskruns` | Gauge |                                                 | experimental |
-| `tekton_pipelines_controller_running_taskruns_throttled_by_quota_count` | Gauge | <br> `namespace`=&lt;pipelinerun-namespace&gt;  | deprecate |
-| `tekton_pipelines_controller_running_taskruns_throttled_by_node_count`  | Gauge | <br> `namespace`=&lt;pipelinerun-namespace&gt;  | deprecate |
 | `tekton_pipelines_controller_running_taskruns_throttled_by_quota` | Gauge | <br> `namespace`=&lt;pipelinerun-namespace&gt; | experimental |
 | `tekton_pipelines_controller_running_taskruns_throttled_by_node`  | Gauge | <br> `namespace`=&lt;pipelinerun-namespace&gt; | experimental |
 | `tekton_pipelines_controller_client_latency_[bucket, sum, count]` | Histogram |                                                 | experimental |

pkg/pipelinerunmetrics/metrics.go

@@ -61,41 +61,21 @@ var (
 		stats.UnitDimensionless)
 	prDurationView *view.View
 
-	prCount = stats.Float64("pipelinerun_count",
-		"number of pipelineruns",
-		stats.UnitDimensionless)
-	prCountView *view.View
-
 	prTotal = stats.Float64("pipelinerun_total",
 		"Number of pipelineruns",
 		stats.UnitDimensionless)
 	prTotalView *view.View
 
-	runningPRsCount = stats.Float64("running_pipelineruns_count",
-		"Number of pipelineruns executing currently",
-		stats.UnitDimensionless)
-	runningPRsCountView *view.View
-
 	runningPRs = stats.Float64("running_pipelineruns",
 		"Number of pipelineruns executing currently",
 		stats.UnitDimensionless)
 	runningPRsView *view.View
 
-	runningPRsWaitingOnPipelineResolutionCount = stats.Float64("running_pipelineruns_waiting_on_pipeline_resolution_count",
-		"Number of pipelineruns executing currently that are waiting on resolution requests for their pipeline references.",
-		stats.UnitDimensionless)
-	runningPRsWaitingOnPipelineResolutionCountView *view.View
-
 	runningPRsWaitingOnPipelineResolution = stats.Float64("running_pipelineruns_waiting_on_pipeline_resolution",
 		"Number of pipelineruns executing currently that are waiting on resolution requests for their pipeline references.",
 		stats.UnitDimensionless)
 	runningPRsWaitingOnPipelineResolutionView *view.View
 
-	runningPRsWaitingOnTaskResolutionCount = stats.Float64("running_pipelineruns_waiting_on_task_resolution_count",
-		"Number of pipelineruns executing currently that are waiting on resolution requests for the task references of their taskrun children.",
-		stats.UnitDimensionless)
-	runningPRsWaitingOnTaskResolutionCountView *view.View
-
 	runningPRsWaitingOnTaskResolution = stats.Float64("running_pipelineruns_waiting_on_task_resolution",
 		"Number of pipelineruns executing currently that are waiting on resolution requests for the task references of their taskrun children.",
 		stats.UnitDimensionless)
@@ -201,9 +181,7 @@ func viewRegister(cfg *config.Metrics) error {
 		}
 	}
 
-	prCountViewTags := []tag.Key{statusTag}
 	if cfg.CountWithReason {
-		prCountViewTags = append(prCountViewTags, reasonTag)
 		prunTag = append(prunTag, reasonTag)
 	}
 
@@ -214,47 +192,26 @@ func viewRegister(cfg *config.Metrics) error {
 		TagKeys:     append([]tag.Key{statusTag, namespaceTag}, prunTag...),
 	}
 
-	prCountView = &view.View{
-		Description: prCount.Description(),
-		Measure:     prCount,
-		Aggregation: view.Count(),
-		TagKeys:     prCountViewTags,
-	}
 	prTotalView = &view.View{
 		Description: prTotal.Description(),
 		Measure:     prTotal,
 		Aggregation: view.Count(),
 		TagKeys:     []tag.Key{statusTag},
 	}
 
-	runningPRsCountView = &view.View{
-		Description: runningPRsCount.Description(),
-		Measure:     runningPRsCount,
-		Aggregation: view.LastValue(),
-	}
 	runningPRsView = &view.View{
 		Description: runningPRs.Description(),
 		Measure:     runningPRs,
 		Aggregation: view.LastValue(),
 		TagKeys:     runningPRTag,
 	}
 
-	runningPRsWaitingOnPipelineResolutionCountView = &view.View{
-		Description: runningPRsWaitingOnPipelineResolutionCount.Description(),
-		Measure:     runningPRsWaitingOnPipelineResolutionCount,
-		Aggregation: view.LastValue(),
-	}
 	runningPRsWaitingOnPipelineResolutionView = &view.View{
 		Description: runningPRsWaitingOnPipelineResolution.Description(),
 		Measure:     runningPRsWaitingOnPipelineResolution,
 		Aggregation: view.LastValue(),
 	}
 
-	runningPRsWaitingOnTaskResolutionCountView = &view.View{
-		Description: runningPRsWaitingOnTaskResolutionCount.Description(),
-		Measure:     runningPRsWaitingOnTaskResolutionCount,
-		Aggregation: view.LastValue(),
-	}
 	runningPRsWaitingOnTaskResolutionView = &view.View{
 		Description: runningPRsWaitingOnTaskResolution.Description(),
 		Measure:     runningPRsWaitingOnTaskResolution,
@@ -263,26 +220,18 @@ func viewRegister(cfg *config.Metrics) error {
 
 	return view.Register(
 		prDurationView,
-		prCountView,
 		prTotalView,
-		runningPRsCountView,
 		runningPRsView,
-		runningPRsWaitingOnPipelineResolutionCountView,
 		runningPRsWaitingOnPipelineResolutionView,
-		runningPRsWaitingOnTaskResolutionCountView,
 		runningPRsWaitingOnTaskResolutionView,
 	)
 }
 
 func viewUnregister() {
 	view.Unregister(prDurationView,
-		prCountView,
 		prTotalView,
-		runningPRsCountView,
 		runningPRsView,
-		runningPRsWaitingOnPipelineResolutionCountView,
 		runningPRsWaitingOnPipelineResolutionView,
-		runningPRsWaitingOnTaskResolutionCountView,
 		runningPRsWaitingOnTaskResolutionView)
 }
 
@@ -412,7 +361,6 @@ func (r *Recorder) DurationAndCount(pr *v1.PipelineRun, beforeCondition *apis.Co
 	}
 
 	metrics.Record(ctx, prDuration.M(duration.Seconds()))
-	metrics.Record(ctx, prCount.M(1))
 	metrics.Record(ctx, prTotal.M(1))
 
 	return nil
@@ -491,11 +439,9 @@ func (r *Recorder) RunningPipelineRuns(lister listers.PipelineRunLister) error {
 	if err != nil {
 		return err
 	}
-	metrics.Record(ctx, runningPRsWaitingOnPipelineResolutionCount.M(float64(prsWaitResolvingPipelineRef)))
 	metrics.Record(ctx, runningPRsWaitingOnPipelineResolution.M(float64(prsWaitResolvingPipelineRef)))
-	metrics.Record(ctx, runningPRsWaitingOnTaskResolutionCount.M(float64(trsWaitResolvingTaskRef)))
 	metrics.Record(ctx, runningPRsWaitingOnTaskResolution.M(float64(trsWaitResolvingTaskRef)))
-	metrics.Record(ctx, runningPRsCount.M(float64(runningPipelineRuns)))
+	metrics.Record(ctx, runningPRs.M(float64(runningPipelineRuns)))
 
 	return nil
 }

pkg/pipelinerunmetrics/metrics_test.go

@@ -532,11 +532,9 @@ func TestRecordPipelineRunDurationCount(t *testing.T) {
 				metricstest.CheckStatsNotReported(t, "pipelinerun_duration_seconds")
 			}
 			if test.expectedCountTags != nil {
-				metricstest.CheckCountData(t, "pipelinerun_count", test.expectedCountTags, test.expectedCount)
 				delete(test.expectedCountTags, "reason")
 				metricstest.CheckCountData(t, "pipelinerun_total", test.expectedCountTags, test.expectedCount)
 			} else {
-				metricstest.CheckStatsNotReported(t, "pipelinerun_count")
 				metricstest.CheckStatsNotReported(t, "pipelinerun_total")
 			}
 		})
@@ -582,7 +580,6 @@ func TestRecordRunningPipelineRunsCount(t *testing.T) {
 	if err := metrics.RunningPipelineRuns(informer.Lister()); err != nil {
 		t.Errorf("RunningPipelineRuns: %v", err)
 	}
-	metricstest.CheckLastValueData(t, "running_pipelineruns_count", map[string]string{}, 1)
 	metricstest.CheckLastValueData(t, "running_pipelineruns", map[string]string{}, 1)
 }
 
@@ -787,15 +784,13 @@ func TestRecordRunningPipelineRunsResolutionWaitCounts(t *testing.T) {
 		if err := metrics.RunningPipelineRuns(informer.Lister()); err != nil {
 			t.Errorf("RunningTaskRuns: %v", err)
 		}
-		metricstest.CheckLastValueData(t, "running_pipelineruns_waiting_on_pipeline_resolution_count", map[string]string{}, tc.prWaitCount)
-		metricstest.CheckLastValueData(t, "running_pipelineruns_waiting_on_task_resolution_count", map[string]string{}, tc.trWaitCount)
 		metricstest.CheckLastValueData(t, "running_pipelineruns_waiting_on_pipeline_resolution", map[string]string{}, tc.prWaitCount)
 		metricstest.CheckLastValueData(t, "running_pipelineruns_waiting_on_task_resolution", map[string]string{}, tc.trWaitCount)
 	}
 }
 
 func unregisterMetrics() {
-	metricstest.Unregister("pipelinerun_duration_seconds", "pipelinerun_count", "pipelinerun_total", "running_pipelineruns_waiting_on_pipeline_resolution_count", "running_pipelineruns_waiting_on_pipeline_resolution", "running_pipelineruns_waiting_on_task_resolution_count", "running_pipelineruns_waiting_on_task_resolution", "running_pipelineruns_count", "running_pipelineruns")
+	metricstest.Unregister("pipelinerun_duration_seconds", "pipelinerun_total", "running_pipelineruns_waiting_on_pipeline_resolution", "running_pipelineruns_waiting_on_task_resolution", "running_pipelineruns")
 
 	// Allow the recorder singleton to be recreated.
 	once = sync.Once{}

pkg/taskrunmetrics/metrics.go

@@ -57,12 +57,8 @@ var (
 
 	trDurationView                             *view.View
 	prTRDurationView                           *view.View
-	trCountView                                *view.View
 	trTotalView                                *view.View
-	runningTRsCountView                        *view.View
 	runningTRsView                             *view.View
-	runningTRsThrottledByQuotaCountView        *view.View
-	runningTRsThrottledByNodeCountView         *view.View
 	runningTRsThrottledByQuotaView             *view.View
 	runningTRsThrottledByNodeView              *view.View
 	runningTRsWaitingOnTaskResolutionCountView *view.View
@@ -78,30 +74,14 @@ var (
 		"The pipelinerun's taskrun execution time in seconds",
 		stats.UnitDimensionless)
 
-	trCount = stats.Float64("taskrun_count",
-		"number of taskruns",
-		stats.UnitDimensionless)
-
 	trTotal = stats.Float64("taskrun_total",
 		"Number of taskruns",
 		stats.UnitDimensionless)
 
-	runningTRsCount = stats.Float64("running_taskruns_count",
-		"Number of taskruns executing currently",
-		stats.UnitDimensionless)
-
 	runningTRs = stats.Float64("running_taskruns",
 		"Number of taskruns executing currently",
 		stats.UnitDimensionless)
 
-	runningTRsThrottledByQuotaCount = stats.Float64("running_taskruns_throttled_by_quota_count",
-		"Number of taskruns executing currently, but whose underlying Pods or Containers are suspended by k8s because of defined ResourceQuotas.  Such suspensions can occur as part of initial scheduling of the Pod, or scheduling of any of the subsequent Container(s) in the Pod after the first Container is started",
-		stats.UnitDimensionless)
-
-	runningTRsThrottledByNodeCount = stats.Float64("running_taskruns_throttled_by_node_count",
-		"Number of taskruns executing currently, but whose underlying Pods or Containers are suspended by k8s because of Node level constraints. Such suspensions can occur as part of initial scheduling of the Pod, or scheduling of any of the subsequent Container(s) in the Pod after the first Container is started",
-		stats.UnitDimensionless)
-
 	runningTRsWaitingOnTaskResolutionCount = stats.Float64("running_taskruns_waiting_on_task_resolution_count",
 		"Number of taskruns executing currently that are waiting on resolution requests for their task references.",
 		stats.UnitDimensionless)
@@ -217,9 +197,7 @@ func viewRegister(cfg *config.Metrics) error {
 		}
 	}
 
-	trCountViewTags := []tag.Key{statusTag}
 	if cfg.CountWithReason {
-		trCountViewTags = append(trCountViewTags, reasonTag)
 		trunTag = append(trunTag, reasonTag)
 	}
 
@@ -236,39 +214,18 @@ func viewRegister(cfg *config.Metrics) error {
 		TagKeys:     append([]tag.Key{statusTag, namespaceTag}, append(trunTag, prunTag...)...),
 	}
 
-	trCountView = &view.View{
-		Description: trCount.Description(),
-		Measure:     trCount,
-		Aggregation: view.Count(),
-		TagKeys:     trCountViewTags,
-	}
 	trTotalView = &view.View{
 		Description: trTotal.Description(),
 		Measure:     trTotal,
 		Aggregation: view.Count(),
 		TagKeys:     []tag.Key{statusTag},
 	}
-	runningTRsCountView = &view.View{
-		Description: runningTRsCount.Description(),
-		Measure:     runningTRsCount,
-		Aggregation: view.LastValue(),
-	}
 
 	runningTRsView = &view.View{
 		Description: runningTRs.Description(),
 		Measure:     runningTRs,
 		Aggregation: view.LastValue(),
 	}
-	runningTRsThrottledByQuotaCountView = &view.View{
-		Description: runningTRsThrottledByQuotaCount.Description(),
-		Measure:     runningTRsThrottledByQuotaCount,
-		Aggregation: view.LastValue(),
-	}
-	runningTRsThrottledByNodeCountView = &view.View{
-		Description: runningTRsThrottledByNodeCount.Description(),
-		Measure:     runningTRsThrottledByNodeCount,
-		Aggregation: view.LastValue(),
-	}
 	runningTRsWaitingOnTaskResolutionCountView = &view.View{
 		Description: runningTRsWaitingOnTaskResolutionCount.Description(),
 		Measure:     runningTRsWaitingOnTaskResolutionCount,
@@ -300,12 +257,8 @@ func viewRegister(cfg *config.Metrics) error {
 	return view.Register(
 		trDurationView,
 		prTRDurationView,
-		trCountView,
 		trTotalView,
-		runningTRsCountView,
 		runningTRsView,
-		runningTRsThrottledByQuotaCountView,
-		runningTRsThrottledByNodeCountView,
 		runningTRsWaitingOnTaskResolutionCountView,
 		runningTRsThrottledByQuotaView,
 		runningTRsThrottledByNodeView,
@@ -317,12 +270,8 @@ func viewUnregister() {
 	view.Unregister(
 		trDurationView,
 		prTRDurationView,
-		trCountView,
 		trTotalView,
-		runningTRsCountView,
 		runningTRsView,
-		runningTRsThrottledByQuotaCountView,
-		runningTRsThrottledByNodeCountView,
 		runningTRsWaitingOnTaskResolutionCountView,
 		runningTRsThrottledByQuotaView,
 		runningTRsThrottledByNodeView,
@@ -467,7 +416,6 @@ func (r *Recorder) DurationAndCount(ctx context.Context, tr *v1.TaskRun, beforeC
 	}
 
 	metrics.Record(ctx, durationStat.M(duration.Seconds()))
-	metrics.Record(ctx, trCount.M(1))
 	metrics.Record(ctx, trTotal.M(1))
 
 	return nil
@@ -492,9 +440,7 @@ func (r *Recorder) RunningTaskRuns(ctx context.Context, lister listers.TaskRunLi
 
 	var runningTrs int
 	trsThrottledByQuota := map[string]int{}
-	trsThrottledByQuotaCount := 0
 	trsThrottledByNode := map[string]int{}
-	trsThrottledByNodeCount := 0
 	var trsWaitResolvingTaskRef int
 	for _, pr := range trs {
 		// initialize metrics with namespace tag to zero if unset; will then update as needed below
@@ -516,12 +462,10 @@ func (r *Recorder) RunningTaskRuns(ctx context.Context, lister listers.TaskRunLi
 		if succeedCondition != nil && succeedCondition.Status == corev1.ConditionUnknown {
 			switch succeedCondition.Reason {
 			case pod.ReasonExceededResourceQuota:
-				trsThrottledByQuotaCount++
 				cnt := trsThrottledByQuota[pr.Namespace]
 				cnt++
 				trsThrottledByQuota[pr.Namespace] = cnt
 			case pod.ReasonExceededNodeResources:
-				trsThrottledByNodeCount++
 				cnt := trsThrottledByNode[pr.Namespace]
 				cnt++
 				trsThrottledByNode[pr.Namespace] = cnt
@@ -535,11 +479,8 @@ func (r *Recorder) RunningTaskRuns(ctx context.Context, lister listers.TaskRunLi
 	if err != nil {
 		return err
 	}
-	metrics.Record(ctx, runningTRsCount.M(float64(runningTrs)))
 	metrics.Record(ctx, runningTRs.M(float64(runningTrs)))
 	metrics.Record(ctx, runningTRsWaitingOnTaskResolutionCount.M(float64(trsWaitResolvingTaskRef)))
-	metrics.Record(ctx, runningTRsThrottledByQuotaCount.M(float64(trsThrottledByQuotaCount)))
-	metrics.Record(ctx, runningTRsThrottledByNodeCount.M(float64(trsThrottledByNodeCount)))
 
 	for ns, cnt := range trsThrottledByQuota {
 		var mutators []tag.Mutator