Kubernetes CronJob Not exited - kubernetes

Question

I am running a cronjob in kubernetes. Cronjob started and but not exited. Status of pod is always in RUNNING.
Below is logs
kubectl get pods
cronjob-1623253800-xnwwx 1/1 Running 0 13h
When i describe the JOB below are noticed
kubectl describe job cronjob-1623300120
Name: cronjob-1623300120
Namespace: cronjob
Selector: xxxxx
Labels: xxxxx
Annotations: <none>
Controlled By: CronJob/cronjob
Parallelism: 1
Completions: 1
Start Time: Thu, 9 Jun 2021 10:12:03 +0530
Pods Statuses: 1 Running / 0 Succeeded / 0 Failed
Pod Template:
Labels: app=cronjob
controller-xxxx
job-name=cronjob-1623300120
Containers:
plannercronjob:
Image: xxxxxxxxxxxxx
Port: <none>
Host Port: <none>
Mounts: <none>
Volumes: <none>
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal SuccessfulCreate 13h job-controller Created pod: cronjob-1623300120
I Noticed that Pods Statuses: 1 Running / 0 Succeeded / 0 Failed. This means that the when code return zero , then job Succeeded/Failed. Is that correct ?.
When i enter into the pod using execute command
kubectl exec --stdin --tty cronjob-1623253800-xnwwx -n cronjob -- /bin/bash
root#cronjob-1623253800-xnwwx:/# ps ax| grep python
1 ? Ssl 0:01 python -m sfit.src.app
18 pts/0 S+ 0:00 grep python
I found that python process is still running. Is this a code issue deadlock or something else.
pod describe
Name: cronjob-1623302220-xnwwx
Namespace: default
Priority: 0
Node: aks-agentpool-xxxxvmss000000/10.240.0.4
Start Time: Thu, 9 Jun 2021 10:47:02 +0530
Labels: app=cronjob
controller-uid=xxxxxx
job-name=cronjob-1623302220
Annotations: <none>
Status: Running
IP: 10.244.1.30
IPs:
IP: 10.244.1.30
Controlled By: Job/cronjob-1623302220
Containers:
plannercronjob:
Container ID: docker://xxxxxxxxxxxxxxxx
Image: xxxxxxxxxxx
Image ID: docker-xxxx
Port: <none>
Host Port: <none>
State: Running
Started: Thu, 9 Jun 2021 10:47:06 +0530
Ready: True
Restart Count: 0
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-97xzv (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
default-token-97xzv:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-97xzv
Optional: false
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
---- ------ ---- ---- -------
Normal Scheduled 13h default-scheduler Successfully assigned cronjob/cronjob-1623302220-xnwwx to aks-agentpool-xxx-vmss000000
Normal Pulling 13h kubelet, aks-agentpool-xxx-vmss000000 Pulling image "xxxx.azurecr.io/xxx:1.1.1"
Normal Pulled 13h kubelet, aks-agentpool-xxx-vmss000000 Successfully pulled image "xxx.azurecr.io/xx:1.1.1"
Normal Created 13h kubelet, aks-agentpool-xxx-vmss000000 Created container cronjob
Normal Started 13h kubelet, aks-agentpool-xxx-vmss000000 Started container cronjob
#KrishnaChaurasia . I run the docker image in my system. There is some error in my python code. But it is exit with error. But in the kubernetes it is not exited and not stop
docker run xxxxx/cronjob:1
File "/usr/local/lib/python3.8/site-packages/azure/core/pipeline/transport/_requests_basic.py", line 261, in send
raise error
azure.core.exceptions.ServiceRequestError: <urllib3.connection.HTTPSConnection object at 0x7f113f6480a0>: Failed to establish a new connection: [Errno -2] Name or service not known
echo $?
1

Answer 1

If you are seeing your pod is always running and never completed, try to add staratingDeadlineSeconds.
https://medium.com/#hengfeng/what-does-kubernetes-cronjobs-startingdeadlineseconds-exactly-mean-cc2117f9795f