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Merge pull request kubernetes-retired#592 from Jeffwan/metrics
Add performance metrics for scheduling
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| /* | ||
| Copyright 2018 The Kubernetes Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package metrics | ||
|
|
||
| import ( | ||
| "time" | ||
|
|
||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/prometheus/client_golang/prometheus/promauto" // auto-registry collectors in default registry | ||
| ) | ||
|
|
||
| const ( | ||
| // KubeBatchNamespace - namespace in prometheus used by kube-batch | ||
| KubeBatchNamespace = "kube_batch" | ||
|
|
||
| // OnSessionOpen label | ||
| OnSessionOpen = "OnSessionOpen" | ||
|
|
||
| // OnSessionClose label | ||
| OnSessionClose = "OnSessionClose" | ||
| ) | ||
|
|
||
| var ( | ||
| e2eSchedulingLatency = promauto.NewHistogram( | ||
| prometheus.HistogramOpts{ | ||
| Subsystem: KubeBatchNamespace, | ||
| Name: "e2e_scheduling_latency_milliseconds", | ||
| Help: "E2e scheduling latency in milliseconds (scheduling algorithm + binding)", | ||
| Buckets: prometheus.ExponentialBuckets(5, 2, 10), | ||
| }, | ||
| ) | ||
|
|
||
| pluginSchedulingLatency = promauto.NewHistogramVec( | ||
| prometheus.HistogramOpts{ | ||
| Subsystem: KubeBatchNamespace, | ||
| Name: "plugin_scheduling_latency_microseconds", | ||
| Help: "Plugin scheduling latency in microseconds", | ||
| Buckets: prometheus.ExponentialBuckets(5, 2, 10), | ||
| }, []string{"plugin", "OnSession"}, | ||
| ) | ||
|
|
||
| actionSchedulingLatency = promauto.NewHistogramVec( | ||
| prometheus.HistogramOpts{ | ||
| Subsystem: KubeBatchNamespace, | ||
| Name: "action_scheduling_latency_microseconds", | ||
| Help: "Action scheduling latency in microseconds", | ||
| Buckets: prometheus.ExponentialBuckets(5, 2, 10), | ||
| }, []string{"action"}, | ||
| ) | ||
|
|
||
| taskSchedulingLatency = promauto.NewHistogram( | ||
| prometheus.HistogramOpts{ | ||
| Subsystem: KubeBatchNamespace, | ||
| Name: "task_scheduling_latency_microseconds", | ||
| Help: "Task scheduling latency in microseconds", | ||
| Buckets: prometheus.ExponentialBuckets(5, 2, 10), | ||
| }, | ||
| ) | ||
|
|
||
| scheduleAttempts = promauto.NewCounterVec( | ||
| prometheus.CounterOpts{ | ||
| Subsystem: KubeBatchNamespace, | ||
| Name: "schedule_attempts_total", | ||
| Help: "Number of attempts to schedule pods, by the result. 'unschedulable' means a pod could not be scheduled, while 'error' means an internal scheduler problem.", | ||
| }, []string{"result"}, | ||
| ) | ||
|
|
||
| preemptionVictims = promauto.NewGauge( | ||
| prometheus.GaugeOpts{ | ||
| Subsystem: KubeBatchNamespace, | ||
| Name: "pod_preemption_victims", | ||
| Help: "Number of selected preemption victims", | ||
| }, | ||
| ) | ||
|
|
||
| preemptionAttempts = promauto.NewCounter( | ||
| prometheus.CounterOpts{ | ||
| Subsystem: KubeBatchNamespace, | ||
| Name: "total_preemption_attempts", | ||
| Help: "Total preemption attempts in the cluster till now", | ||
| }, | ||
| ) | ||
|
|
||
| unscheduleTaskCount = promauto.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Subsystem: KubeBatchNamespace, | ||
| Name: "unschedule_task_count", | ||
| Help: "Number of tasks could not be scheduled", | ||
| }, []string{"job_id"}, | ||
| ) | ||
|
|
||
| unscheduleJobCount = promauto.NewGauge( | ||
| prometheus.GaugeOpts{ | ||
| Subsystem: KubeBatchNamespace, | ||
| Name: "unschedule_job_count", | ||
| Help: "Number of jobs could not be scheduled", | ||
| }, | ||
| ) | ||
|
|
||
| jobRetryCount = promauto.NewCounterVec( | ||
| prometheus.CounterOpts{ | ||
| Subsystem: KubeBatchNamespace, | ||
| Name: "job_retry_counts", | ||
| Help: "Number of retry counts for one job", | ||
| }, []string{"job_id"}, | ||
| ) | ||
| ) | ||
|
|
||
| // UpdatePluginDuration updates latency for every plugin | ||
| func UpdatePluginDuration(pluginName, OnSessionStatus string, duration time.Duration) { | ||
| pluginSchedulingLatency.WithLabelValues(pluginName, OnSessionStatus).Observe(DurationInMicroseconds(duration)) | ||
| } | ||
|
|
||
| // UpdateActionDuration updates latency for every action | ||
| func UpdateActionDuration(actionName string, duration time.Duration) { | ||
| actionSchedulingLatency.WithLabelValues(actionName).Observe(DurationInMicroseconds(duration)) | ||
| } | ||
|
|
||
| // UpdateE2eDuration updates entire end to end scheduling latency | ||
| func UpdateE2eDuration(duration time.Duration) { | ||
| e2eSchedulingLatency.Observe(DurationInMilliseconds(duration)) | ||
| } | ||
|
|
||
| // UpdateTaskScheduleDuration updates single task scheduling latency | ||
| func UpdateTaskScheduleDuration(duration time.Duration) { | ||
| taskSchedulingLatency.Observe(DurationInMicroseconds(duration)) | ||
| } | ||
|
|
||
| // UpdatePodScheduleStatus update pod schedule decision, could be Success, Failure, Error | ||
| func UpdatePodScheduleStatus(label string, count int) { | ||
| scheduleAttempts.WithLabelValues(label).Add(float64(count)) | ||
| } | ||
|
|
||
| // UpdatePreemptionVictimsCount updates count of preemption victims | ||
| func UpdatePreemptionVictimsCount(victimsCount int) { | ||
| preemptionVictims.Set(float64(victimsCount)) | ||
| } | ||
|
|
||
| // RegisterPreemptionAttempts records number of attempts for preemtion | ||
| func RegisterPreemptionAttempts() { | ||
| preemptionAttempts.Inc() | ||
| } | ||
|
|
||
| // UpdateUnscheduleTaskCount records total number of unscheduleable tasks | ||
| func UpdateUnscheduleTaskCount(jobID string, taskCount int) { | ||
| unscheduleTaskCount.WithLabelValues(jobID).Set(float64(taskCount)) | ||
| } | ||
|
|
||
| // UpdateUnscheduleJobCount records total number of unscheduleable jobs | ||
| func UpdateUnscheduleJobCount(jobCount int) { | ||
| unscheduleJobCount.Set(float64(jobCount)) | ||
| } | ||
|
|
||
| // RegisterJobRetries total number of job retries. | ||
| func RegisterJobRetries(jobID string) { | ||
| jobRetryCount.WithLabelValues(jobID).Inc() | ||
| } | ||
|
|
||
| // DurationInMicroseconds gets the time in microseconds. | ||
| func DurationInMicroseconds(duration time.Duration) float64 { | ||
| return float64(duration.Nanoseconds()) / float64(time.Microsecond.Nanoseconds()) | ||
| } | ||
|
|
||
| // DurationInMilliseconds gets the time in milliseconds. | ||
| func DurationInMilliseconds(duration time.Duration) float64 { | ||
| return float64(duration.Nanoseconds()) / float64(time.Millisecond.Nanoseconds()) | ||
| } | ||
|
|
||
| // DurationInSeconds gets the time in seconds. | ||
| func DurationInSeconds(duration time.Duration) float64 { | ||
| return duration.Seconds() | ||
| } | ||
|
|
||
| // Duration get the time since specified start | ||
| func Duration(start time.Time) time.Duration { | ||
| return time.Since(start) | ||
| } |
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