Bug 1944974
| Summary: | Duplicate KubeControllerManagerDown/KubeSchedulerDown alerts | ||
|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Junqi Zhao <juzhao> |
| Component: | Monitoring | Assignee: | Simon Pasquier <spasquie> |
| Status: | CLOSED ERRATA | QA Contact: | Junqi Zhao <juzhao> |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | 4.8 | CC: | alegrand, anpicker, erooth, kakkoyun, lcosic, pkrupa, spasquie |
| Target Milestone: | --- | ||
| Target Release: | 4.8.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | No Doc Update | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-07-27 22:56:48 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
tested with 4.8.0-0.nightly-2021-04-01-213116, KubeControllerManagerDown and KubeSchedulerDown are removed from openshift-monitoring prometheusrules file Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: OpenShift Container Platform 4.8.2 bug fix and security update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2021:2438 |
Description of problem: there is KubeControllerManagerDown alert rule in kube-controller-manager-operator prometheusrules of openshift-kube-controller-manager-operator project, and KubeSchedulerDown alert rule in kube-scheduler-operator prometheusrules of openshift-kube-scheduler-operator project. Both KubeControllerManagerDown/KubeSchedulerDown alert rules also exist in kubernetes-monitoring-rules prometheusrules of openshift-monitoring project. the only difference is the annotations part # oc -n openshift-kube-controller-manager-operator get prometheusrules kube-controller-manager-operator -oyaml ... spec: groups: - name: cluster-version rules: - alert: KubeControllerManagerDown annotations: message: KubeControllerManager has disappeared from Prometheus target discovery. expr: | absent(up{job="kube-controller-manager"} == 1) for: 15m labels: severity: critical ... # oc -n openshift-monitoring get prometheusrules kubernetes-monitoring-rules -oyaml ... - name: kubernetes-system-controller-manager rules: - alert: KubeControllerManagerDown annotations: description: KubeControllerManager has disappeared from Prometheus target discovery. summary: Target disappeared from Prometheus target discovery. expr: | absent(up{job="kube-controller-manager"} == 1) for: 15m labels: severity: critical ********************************************************* # oc -n openshift-kube-scheduler-operator get prometheusrules kube-scheduler-operator -oyaml ... spec: groups: - name: cluster-version rules: - alert: KubeSchedulerDown annotations: message: KubeScheduler has disappeared from Prometheus target discovery. expr: | absent(up{job="scheduler"} == 1) for: 15m labels: severity: critical ... # oc -n openshift-monitoring get prometheusrules kubernetes-monitoring-rules -oyaml ... - name: kubernetes-system-scheduler rules: - alert: KubeSchedulerDown annotations: description: KubeScheduler has disappeared from Prometheus target discovery. summary: Target disappeared from Prometheus target discovery. expr: | absent(up{job="scheduler"} == 1) for: 15m labels: severity: critical ... Version-Release number of selected component (if applicable): 4.8.0-0.nightly-2021-03-30-160509 How reproducible: always Steps to Reproduce: 1. see the description 2. 3. Actual results: Duplicate KubeControllerManagerDown/KubeSchedulerDown alerts Expected results: Should not have duplicate alerts Additional info: