Bug 1415464
| Summary: | Stateful Set status.replicas is always 0 after pod running | ||
|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Xingxing Xia <xxia> |
| Component: | Node | Assignee: | Derek Carr <decarr> |
| Status: | CLOSED NOTABUG | QA Contact: | Xiaoli Tian <xtian> |
| Severity: | low | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | aos-bugs, bpeterse, gblomqui, jokerman, mmccomas, wmeng |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-07-03 15:12:09 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: | |||
I try this on ocp-3.5, statefulset status.replicas is correct.
Version:
[root@ip-172-18-1-86 ~]# openshift version
openshift v3.5.0.16+a26133a
kubernetes v1.5.2+43a9be4
etcd 3.1.0
Test result:
[root@dhcp-128-7 dma]# oc get statefulset
NAME DESIRED CURRENT AGE
hello-petset 2 2 4m
[root@dhcp-128-7 dma]# oc get pod|grep hello-petset
hello-petset-0 1/1 Running 0 4m
hello-petset-1 1/1 Running 0 4m
[root@dhcp-128-7 dma]# oc get statefulset hello-petset -o json
{
"apiVersion": "apps/v1beta1",
"kind": "StatefulSet",
"metadata": {
"creationTimestamp": "2017-02-06T05:22:59Z",
"generation": 1,
"labels": {
"app": "hello-pod"
},
"name": "hello-petset",
"namespace": "test1",
"resourceVersion": "9084",
"selfLink": "/apis/apps/v1beta1/namespaces/test1/statefulsets/hello-petset",
"uid": "5310261a-ec2c-11e6-bb1b-0e9cac247b88"
},
"spec": {
"replicas": 2,
"selector": {
"matchLabels": {
"app": "hello-pod"
}
},
"serviceName": "foo",
"template": {
"metadata": {
"annotations": {
"pod.alpha.kubernetes.io/initialized": "true"
},
"creationTimestamp": null,
"labels": {
"app": "hello-pod"
}
},
"spec": {
"containers": [
{
"image": "docker.io/deshuai/hello-pod:latest",
"imagePullPolicy": "IfNotPresent",
"name": "hello-pod",
"ports": [
{
"containerPort": 8080,
"protocol": "TCP"
}
],
"resources": {},
"securityContext": {
"capabilities": {},
"privileged": false
},
"terminationMessagePath": "/dev/termination-log",
"volumeMounts": [
{
"mountPath": "/tmp",
"name": "tmp"
}
]
}
],
"dnsPolicy": "ClusterFirst",
"restartPolicy": "Always",
"securityContext": {},
"terminationGracePeriodSeconds": 0,
"volumes": [
{
"emptyDir": {},
"name": "tmp"
}
]
}
}
},
"status": {
"replicas": 2
}
}
[root@dhcp-128-7 dma]# oc describe statefulset hello-petset
Name: hello-petset
Namespace: test1
Image(s): docker.io/deshuai/hello-pod:latest
Selector: app=hello-pod
Labels: app=hello-pod
Replicas: 2 current / 2 desired
Annotations: <none>
CreationTimestamp: Mon, 06 Feb 2017 13:22:59 +0800
Pods Status: 2 Running / 0 Waiting / 0 Succeeded / 0 Failed
Volumes:
tmp:
Type: EmptyDir (a temporary directory that shares a pod's lifetime)
Medium:
Events:
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
4m 4m 1 {statefulset } Normal SuccessfulCreate pet: hello-petset-0
4m 4m 1 {statefulset } Normal SuccessfulCreate pet: hello-petset-1
Appears to work in OCP 3.5 based on comment #1 |
Description of problem: Stateful Set status.replicas is always 0 after pod running. Compared with RC, RC does not have the problem Version-Release number of selected component (if applicable): openshift v1.5.0-alpha.2+6e9d68d-91 How reproducible: Always Steps to Reproduce: 1. Create statefulset $ oc create -f - <<EOF apiVersion: apps/v1beta1 kind: StatefulSet metadata: labels: app: hello name: hello name: hello spec: replicas: 1 selector: matchLabels: app: hello serviceName: hello template: metadata: labels: app: hello spec: containers: - image: aosqe/hello-openshift name: hello ports: - containerPort: 8080 name: web protocol: TCP restartPolicy: Always EOF 2. After pod is running, check statefulset status.replicas $ oc get statefulset -o yaml 3. Check `oc describe` to see the problem obviously: $ oc describe statefulset hello Actual results: 2. It shows 0 in status.replicas ... status: replicas: 0 3. It shows "0 current / 1 desired" Name: hello ... Replicas: 0 current / 1 desired ... Pods Status: 1 Running / 0 Waiting / 0 Succeeded / 0 Failed ... Expected results: 2. status.replicas should be 1 3. Should be: ... Replicas: 1 current / 1 desired ... Additional info: