# READY 0/1 state

**URL:** <https://discuss.kubernetes.io/t/ready-0-1-state/16885>\
**Category:** General Discussions\
**Created:** [July 28, 2021, 4:01pm UTC](https://discuss.kubernetes.io/t/ready-0-1-state/16885 "2021-07-28T16:01:53Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![antolepore](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/antolepore/32/8240_2.png) [@antolepore](https://discuss.kubernetes.io/u/antolepore)\
**Post date:** [July 28, 2021, 4:01pm UTC](https://discuss.kubernetes.io/t/ready-0-1-state/16885/1 "2021-07-28T16:01:53Z")

</div>

Hi,  
I am following a lab on Kubernetes and Mongodb but all the Pods are always in 0/1 state  
what does it mean?  
how do i make them READY 1/1

```auto
[root@master-node ~]# kubectl get pod
NAME READY STATUS RESTARTS AGE
mongo-express-78fcf796b8-wzgvx 0/1 Pending 0 3m41s
mongodb-deployment-8f6675bc5-qxj4g 0/1 Pending 0 160m
nginx-deployment-64bd7b69c-wp79g 0/1 Pending 0 4h44m

```

---

<div class="post-metadata">

**Author:** ![protosam](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/protosam/32/7732_2.png) [@protosam](https://discuss.kubernetes.io/u/protosam)\
**Post date:** [July 28, 2021, 5:21pm UTC](https://discuss.kubernetes.io/t/ready-0-1-state/16885/2 "2021-07-28T17:21:26Z")

</div>

Check pod events and logs.

Events are available from `describe`.

```nohighlight
kubectl describe pod mongo-express-78fcf796b8-wzgvx

```

Logs provide the stdout from the containers in the pod. `-c container_name` is only necessary for pods with more than 1 container.

```nohighlight
kubectl logs mongo-express-78fcf796b8-wzgvx -c container_name

```

---

<div class="post-metadata">

**Author:** ![antolepore](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/antolepore/32/8240_2.png) [@antolepore](https://discuss.kubernetes.io/u/antolepore)\
**Post date:** [July 28, 2021, 8:37pm UTC](https://discuss.kubernetes.io/t/ready-0-1-state/16885/3 "2021-07-28T20:37:37Z")

</div>

Thank you but what should I see in the logs?

---

<div class="post-metadata">

**Author:** ![mrbobbytables](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/mrbobbytables/32/7_2.png) [@mrbobbytables](https://discuss.kubernetes.io/u/mrbobbytables)\
**Post date:** [July 28, 2021, 10:56pm UTC](https://discuss.kubernetes.io/t/ready-0-1-state/16885/4 "2021-07-28T22:56:58Z")

</div>

Error messages that should be able to help you diagnose why the containers are stuck in the pending state. If the logs at that level, it’s time to start debugging at other levels.

---

<div class="post-metadata">

**Author:** ![antolepore](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/antolepore/32/8240_2.png) [@antolepore](https://discuss.kubernetes.io/u/antolepore)\
**Post date:** [July 28, 2021, 11:43pm UTC](https://discuss.kubernetes.io/t/ready-0-1-state/16885/5 "2021-07-28T23:43:42Z")

</div>

here is the log but I don’t understand now which error I should see, thanks anyway to all of the help

```auto
[root@master-node ~]# kubectl describe pod mongo-express-78fcf796b8-wzgvx
Name: mongo-express-78fcf796b8-wzgvx
Namespace: default
Priority: 0
Node: <none>
Labels: app=mongo-express
                pod-template-hash=78fcf796b8
Annotations: <none>
Status: Pending ^W Cerca ^K Taglia ^J Giustifica ^C Posizione M-U Annulla M-A Marca testo
IP: R Inserisci ^\ Sostituisci ^U Incolla ^T Ortografia ^_ Vai a riga M-E Ripeti M-6 Copia
IPs: <none>
Controlled By: ReplicaSet/mongo-express-78fcf796b8
Containers:
  mongo-express:
    Image: mongo-express
    Port: 8081/TCP
    Host Port: 0/TCP
    Environment:
      ME_CONFIG_MONGODB_ADMINUSERNAME: <set to the key 'mongo-root-username' in secret 'mongodb-secret'> Optional: false
      ME_CONFIG_MONGODB_ADMINPASSWORD: <set to the key 'mongo-root-password' in secret 'mongodb-secret'> Optional: false
    Mounts:
      /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-2mcpd (ro)
Conditions:
  Type Status
  PodScheduled False
Volumes:
  kube-api-access-2mcpd:
    Type: Projected (a volume that contains injected data from multiple sources)
    TokenExpirationSeconds: 3607
    ConfigMapName: kube-root-ca.crt
    ConfigMapOptional: <nil>
    DownwardAPI: true
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
                             node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
  Type Reason Age From Message
  ---- ------ ---- ---- -------
  Warning FailedScheduling 2m40s (x112 over 113m) default-scheduler 0/1 nodes are available: 1 node(s) had taint {node-role.kubernetes.io/master: }, that the pod didn't tolerate.

```

```auto
[root@master-node ~]# kubectl logs mongo-express-78fcf796b8-wzgvx -c container_name
error: container container_name is not valid for pod mongo-express-78fcf796b8-wzgvx

```

---

<div class="post-metadata">

**Author:** ![protosam](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/protosam/32/7732_2.png) [@protosam](https://discuss.kubernetes.io/u/protosam)\
**Post date:** [July 29, 2021, 12:30am UTC](https://discuss.kubernetes.io/t/ready-0-1-state/16885/6 "2021-07-29T00:30:54Z")

</div>

Guessing you only have a single master node. [Something to know about kubeadm is prevents scheduling on the control plane by default](https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/create-cluster-kubeadm/#control-plane-node-isolation). That document provides a command to untaint all your nodes.

If you run `kubectl describe node NODE_NAME` you will probably see a label or annotation with `node-role.kubernetes.io/master` as the indicator preventing scheduling.

---

<div class="post-metadata">

**Author:** ![antolepore](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/antolepore/32/8240_2.png) [@antolepore](https://discuss.kubernetes.io/u/antolepore)\
**Post date:** [July 29, 2021, 12:40am UTC](https://discuss.kubernetes.io/t/ready-0-1-state/16885/7 "2021-07-29T00:40:30Z")

</div>

Yes i am following a lab for a 3 node cluster and i am working on the first node, I understand what you said so what should i do to have READY 1/1 Thanks in advance

```auto

[root@master-node ~]# kubectl get node
NAME STATUS ROLES AGE VERSION
master-node Ready control-plane,master 26h v1.21.3
[root@master-node ~]# kubectl describe node master-node
Name: master-node
Roles: control-plane,master
Labels: beta.kubernetes.io/arch=amd64
                    beta.kubernetes.io/os=linux
                    kubernetes.io/arch=amd64
                    kubernetes.io/hostname=master-node
                    kubernetes.io/os=linux
                    node-role.kubernetes.io/control-plane=
                    node-role.kubernetes.io/master=
                    node.kubernetes.io/exclude-from-external-load-balancers=
Annotations: flannel.alpha.coreos.com/backend-data: {"VNI":1,"VtepMAC":"da:25:dc:0c:af:35"}
                    flannel.alpha.coreos.com/backend-type: vxlan
                    flannel.alpha.coreos.com/kube-subnet-manager: true
                    flannel.alpha.coreos.com/public-ip: 192.168.30.100
                    kubeadm.alpha.kubernetes.io/cri-socket: /var/run/dockershim.sock
                    node.alpha.kubernetes.io/ttl: 0
                    volumes.kubernetes.io/controller-managed-attach-detach: true
CreationTimestamp: Mon, 26 Jul 2021 20:34:36 -0400
Taints: node-role.kubernetes.io/master:NoSchedule
Unschedulable: false
Lease:
  HolderIdentity: master-node
  AcquireTime: <unset>
  RenewTime: Tue, 27 Jul 2021 22:43:49 -0400
Conditions:
  Type Status LastHeartbeatTime LastTransitionTime Reason
        Message
  ---- ------ ----------------- ------------------ ------
        -------
  NetworkUnavailable False Tue, 27 Jul 2021 13:59:48 -0400 Tue, 27 Jul 2021 13:59:48 -0400 FlannelIsUp
        Flannel is running on this node
  MemoryPressure False Tue, 27 Jul 2021 22:41:01 -0400 Mon, 26 Jul 2021 20:34:36 -0400 KubeletHasSufficientMemory kubelet has sufficient memory available
  DiskPressure False Tue, 27 Jul 2021 22:41:01 -0400 Mon, 26 Jul 2021 20:34:36 -0400 KubeletHasNoDiskPressure kubelet has no disk pressure
  PIDPressure False Tue, 27 Jul 2021 22:41:01 -0400 Mon, 26 Jul 2021 20:34:36 -0400 KubeletHasSufficientPID kubelet has sufficient PID available
  Ready True Tue, 27 Jul 2021 22:41:01 -0400 Mon, 26 Jul 2021 20:44:55 -0400 KubeletReady
        kubelet is posting ready status
Addresses:
  InternalIP: 192.168.30.100
  Hostname: master-node
Capacity:
  cpu: 2
  ephemeral-storage: 6334Mi
  hugepages-2Mi: 0
  memory: 3728016Ki
  pods: 110
Allocatable:
  cpu: 2
  ephemeral-storage: 5977512336
  hugepages-2Mi: 0
  memory: 3625616Ki
  pods: 110
System Info:
  Machine ID: 7eb80ce971604dc588326782f26f95f0
  System UUID: c122c5ae-fb8e-c043-b7c6-8c3eed40c427
  Boot ID: 2f44c701-4441-4916-83f6-b52ab569f262
  Kernel Version: 4.18.0-315.el8.x86_64
  OS Image: CentOS Stream 8
  Operating System: linux
  Architecture: amd64
  Container Runtime Version: docker://20.10.7
  Kubelet Version: v1.21.3
  Kube-Proxy Version: v1.21.3
PodCIDR: 10.244.0.0/24
PodCIDRs: 10.244.0.0/24
Non-terminated Pods: (8 in total)
  Namespace Name CPU Requests CPU Limits Memory Requests Memory Limits Age
  --------- ---- ------------ ---------- --------------- ------------- ---
  kube-system coredns-558bd4d5db-c7gb9 100m (5%) 0 (0%) 70Mi (1%) 170Mi (4%) 26h
  kube-system coredns-558bd4d5db-gb9ct 100m (5%) 0 (0%) 70Mi (1%) 170Mi (4%) 26h
  kube-system etcd-master-node 100m (5%) 0 (0%) 100Mi (2%) 0 (0%) 26h
  kube-system kube-apiserver-master-node 250m (12%) 0 (0%) 0 (0%) 0 (0%) 26h
  kube-system kube-controller-manager-master-node 200m (10%) 0 (0%) 0 (0%) 0 (0%) 26h
  kube-system kube-flannel-ds-wjgb7 100m (5%) 100m (5%) 50Mi (1%) 50Mi (1%) 25h
  kube-system kube-proxy-ccl8k 0 (0%) 0 (0%) 0 (0%) 0 (0%) 26h
  kube-system kube-scheduler-master-node 100m (5%) 0 (0%) 0 (0%) 0 (0%) 26h
Allocated resources:
  (Total limits may be over 100 percent, i.e., overcommitted.)
  Resource Requests Limits
  -------- -------- ------
  cpu 950m (47%) 100m (5%)
  memory 290Mi (8%) 390Mi (11%)
  ephemeral-storage 0 (0%) 0 (0%)
  hugepages-2Mi 0 (0%) 0 (0%)
Events: <none>

```
