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cronjob_controller: add metrics for job creation skew duration

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Alay Patel 2021-03-01 13:44:07 -05:00 committed by Alay Patel
parent f79795d718
commit 08bc827e66
2 changed files with 51 additions and 0 deletions
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4
pkg/controller/cronjob/cronjob_controllerv2.go
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@ -46,6 +46,7 @@ import (
"k8s.io/component-base/metrics/prometheus/ratelimiter" "k8s.io/component-base/metrics/prometheus/ratelimiter"
"k8s.io/klog/v2" "k8s.io/klog/v2"
"k8s.io/kubernetes/pkg/controller" "k8s.io/kubernetes/pkg/controller"
"k8s.io/kubernetes/pkg/controller/cronjob/metrics"
) )
var ( var (
@ -114,6 +115,8 @@ func NewControllerV2(jobInformer batchv1informers.JobInformer, cronJobsInformer
}, },
}) })
metrics.Register()
return jm, nil return jm, nil
} }
@ -570,6 +573,7 @@ func (jm *ControllerV2) syncCronJob(
return cj, nil, err return cj, nil, err
} }
metrics.CronJobCreationSkew.Observe(jobResp.ObjectMeta.GetCreationTimestamp().Sub(*scheduledTime).Seconds())
klog.V(4).InfoS("Created Job", "job", klog.KRef(jobResp.GetNamespace(), jobResp.GetName()), "cronjob", klog.KRef(cj.GetNamespace(), cj.GetName())) klog.V(4).InfoS("Created Job", "job", klog.KRef(jobResp.GetNamespace(), jobResp.GetName()), "cronjob", klog.KRef(cj.GetNamespace(), cj.GetName()))
jm.recorder.Eventf(cj, corev1.EventTypeNormal, "SuccessfulCreate", "Created job %v", jobResp.Name) jm.recorder.Eventf(cj, corev1.EventTypeNormal, "SuccessfulCreate", "Created job %v", jobResp.Name)

47
pkg/controller/cronjob/metrics/metrics.go Normal file
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@ -0,0 +1,47 @@
/*
Copyright 2021 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 (
"sync"
"k8s.io/component-base/metrics"
"k8s.io/component-base/metrics/legacyregistry"
)
const CronJobControllerSubsystem = "cronjob_controller"
var (
CronJobCreationSkew = metrics.NewHistogram(
&metrics.HistogramOpts{
Subsystem: CronJobControllerSubsystem,
Name: "cronjob_job_creation_skew_duration_seconds",
Help: "Time between when a cronjob is scheduled to be run, and when the corresponding job is created",
StabilityLevel: metrics.ALPHA,
Buckets: metrics.ExponentialBuckets(1, 2, 10),
},
)
)
var registerMetrics sync.Once
// Register registers CronjobController metrics.
func Register() {
registerMetrics.Do(func() {
legacyregistry.MustRegister(CronJobCreationSkew)
})
}