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Bug 1862194

Summary: [4.5] Result for kubelet_running_pod_count is wrong
Product: OpenShift Container Platform Reporter: Seth Jennings <sjenning>
Component: NodeAssignee: Seth Jennings <sjenning>
Status: CLOSED ERRATA QA Contact: Sunil Choudhary <schoudha>
Severity: medium Docs Contact:
Priority: medium    
Version: 4.6CC: alegrand, anpicker, aos-bugs, erooth, jokerman, juzhao, kakkoyun, lcosic, mloibl, pkrupa, schoudha, sjenning, surbania
Target Milestone: ---   
Target Release: 4.5.z   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1861631 Environment:
Last Closed: 2020-09-08 10:54:03 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1861631    
Bug Blocks: 1862195    

Comment 1 Seth Jennings 2020-07-30 17:15:03 UTC
4.6 PR https://github.com/openshift/kubernetes/pull/303

Comment 2 Seth Jennings 2020-08-10 19:57:58 UTC
upstream PR https://github.com/openshift/origin/pull/25359

Comment 6 Sunil Choudhary 2020-08-24 12:20:32 UTC
Verified on 4.5.0-0.nightly-2020-08-23-191713

$ oc get clusterversion
NAME      VERSION                             AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.5.0-0.nightly-2020-08-23-191713   True        False         7m35s   Cluster version is 4.5.0-0.nightly-2020-08-23-191713

$ oc get nodes
NAME                                         STATUS   ROLES    AGE   VERSION
ip-10-0-129-19.us-east-2.compute.internal    Ready    worker   50m   v1.18.3+0bec244
ip-10-0-130-91.us-east-2.compute.internal    Ready    master   62m   v1.18.3+0bec244
ip-10-0-161-169.us-east-2.compute.internal   Ready    worker   50m   v1.18.3+0bec244
ip-10-0-185-109.us-east-2.compute.internal   Ready    master   62m   v1.18.3+0bec244
ip-10-0-217-219.us-east-2.compute.internal   Ready    worker   50m   v1.18.3+0bec244
ip-10-0-220-213.us-east-2.compute.internal   Ready    master   62m   v1.18.3+0bec244

$ oc get pod --all-namespaces -o wide | grep "ip-10-0-130-91.us-east-2.compute.internal" | grep Running |  wc -l
31

$ oc get pod --all-namespaces -o wide | grep "ip-10-0-130-91.us-east-2.compute.internal" | grep Completed |  wc -l
26

$ oc -n openshift-monitoring exec -c prometheus prometheus-k8s-0 -- curl -k -g -H "Authorization: Bearer $token" 'https://prometheus-k8s.openshift-monitoring.svc:9091/api/v1/query?query=kubelet_running_pod_count{node="ip-10-0-130-91.us-east-2.compute.internal"}' | jq
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   341  100   341    0     0   8881      0 --:--:-- --:--:-- --:--:--  8973
{
  "status": "success",
  "data": {
    "resultType": "vector",
    "result": [
      {
        "metric": {
          "__name__": "kubelet_running_pod_count",
          "endpoint": "https-metrics",
          "instance": "10.0.130.91:10250",
          "job": "kubelet",
          "metrics_path": "/metrics",
          "namespace": "kube-system",
          "node": "ip-10-0-130-91.us-east-2.compute.internal",
          "service": "kubelet"
        },
        "value": [
          1598270845.309,
          "31"
        ]
      }
    ]
  }
}

Comment 8 errata-xmlrpc 2020-09-08 10:54:03 UTC
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 (OpenShift Container Platform 4.5.8 bug fix 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/RHBA-2020:3510