Job:
#OCPBUGS-15430issue4 weeks agoKubeAPIDown alert rename and/or degraded status ASSIGNED
We have many guards making sure that there are always at least two instances of the kube-apiserver. If we ever reach a single kube-apiserver and it causes disruption for the clients, other alerts such as KubeAPIErrorBudgetBurn will fire.
KubeAPIDown is here to make sure that Prometheus and really any client can reach the kube-apiserver, which they can even when there is only one instance of kube-apiserver running. If they can't or that availability is disrupted, `KubeAPIErrorBudgetBurn` will fire.
Comment 23058588 by Marcel Härri at 2023-09-19T06:57:07.949+0000
#OCPBUGS-30267issue6 weeks ago[IBMCloud] MonitorTests liveness/readiness probe error events repeat MODIFIED
Mar 12 18:52:24.937 - 58s E namespace/openshift-kube-apiserver alert/KubeAPIErrorBudgetBurn alertstate/firing severity/critical ALERTS
{alertname="KubeAPIErrorBudgetBurn", alertstate="firing", long="1h", namespace="openshift-kube-apiserver", prometheus="openshift-monitoring/k8s", severity="critical", short="5m"}
periodic-ci-openshift-release-master-nightly-4.15-upgrade-from-stable-4.14-e2e-aws-sdn-upgrade (all) - 17 runs, 24% failed, 75% of failures match = 18% impact
#1788132834091732992junit5 days ago
# [bz-kube-apiserver][invariant] alert/KubeAPIErrorBudgetBurn should not be at or above pending
KubeAPIErrorBudgetBurn was at or above pending for at least 3m36s on platformidentification.JobType{Release:"4.15", FromRelease:"4.14", Platform:"aws", Architecture:"amd64", Network:"sdn", Topology:"ha"} (maxAllowed=0s): pending for 3m36s, firing for 0s:
May 08 09:46:04.338 - 216s  I namespace/openshift-kube-apiserver alert/KubeAPIErrorBudgetBurn alertstate/pending severity/warning ALERTS{alertname="KubeAPIErrorBudgetBurn", alertstate="pending", long="3d", namespace="openshift-kube-apiserver", prometheus="openshift-monitoring/k8s", severity="warning", short="6h"}
#1785564276371492864junit12 days ago
# [bz-kube-apiserver][invariant] alert/KubeAPIErrorBudgetBurn should not be at or above pending
KubeAPIErrorBudgetBurn was at or above pending for at least 6s on platformidentification.JobType{Release:"4.15", FromRelease:"4.14", Platform:"aws", Architecture:"amd64", Network:"sdn", Topology:"ha"} (maxAllowed=0s): pending for 6s, firing for 0s:
May 01 07:43:50.590 - 6s    I namespace/openshift-kube-apiserver alert/KubeAPIErrorBudgetBurn alertstate/pending severity/warning ALERTS{alertname="KubeAPIErrorBudgetBurn", alertstate="pending", long="3d", namespace="openshift-kube-apiserver", prometheus="openshift-monitoring/k8s", severity="warning", short="6h"}
#1785082761812381696junit13 days ago
# [bz-kube-apiserver][invariant] alert/KubeAPIErrorBudgetBurn should not be at or above pending
KubeAPIErrorBudgetBurn was at or above pending for at least 2m44s on platformidentification.JobType{Release:"4.15", FromRelease:"4.14", Platform:"aws", Architecture:"amd64", Network:"sdn", Topology:"ha"} (maxAllowed=0s): pending for 2m44s, firing for 0s:
Apr 29 23:39:14.701 - 164s  I namespace/openshift-kube-apiserver alert/KubeAPIErrorBudgetBurn alertstate/pending severity/warning ALERTS{alertname="KubeAPIErrorBudgetBurn", alertstate="pending", long="3d", namespace="openshift-kube-apiserver", prometheus="openshift-monitoring/k8s", severity="warning", short="6h"}

Found in 17.65% of runs (75.00% of failures) across 17 total runs and 1 jobs (23.53% failed) in 158ms - clear search | chart view - source code located on github