👀 Views: 76 💬 Answers: 1 📅 Created: 2025-06-14

kubernetes cronjob jobs scheduling yaml

I'm working on a project and hit a roadblock. I'm working through a tutorial and I'm stuck on something that should probably be simple. I'm running a CronJob on Kubernetes v1.26 that is supposed to execute a job every day at 3 AM UTC. However, I'm working with an scenario where the job sometimes fails to complete successfully. The logs show the following behavior intermittently: ``` behavior: context deadline exceeded ``` I’ve checked the job configurations and the job itself runs a simple script that fetches data from an external API and processes it. The CronJob is defined as follows: ```yaml apiVersion: batch/v1beta1 kind: CronJob metadata: name: data-fetcher spec: schedule: "0 3 * * *" jobTemplate: spec: template: spec: containers: - name: fetcher image: my-fetcher-image:latest command: ["/bin/sh", "-c", "./fetch-data.sh"] restartPolicy: OnFailure ``` Additionally, I've set the image pull policy to `Always` to ensure I get the latest image. My `fetch-data.sh` script has been running fine locally, but I suspect there may be a timing scenario due to how Kubernetes handles job execution. I also tried increasing the job's timeout by adding the following: ```yaml spec: ttlSecondsAfterFinished: 3600 activeDeadlineSeconds: 1800 ``` Despite these adjustments, the job still sometimes fails, particularly when the system is under high load. I checked the resource requests and limits, and they seem appropriate for the workload. Here’s what I specified in the pod template: ```yaml resources: requests: memory: "256Mi" cpu: "500m" limits: memory: "512Mi" cpu: "1000m" ``` Is there something I am missing in the configuration? Could it be related to the time zone not being correctly set on the Kubernetes nodes? Any advice on how to debug this further would be greatly appreciated! My development environment is Windows. What's the correct way to implement this? Any advice would be much appreciated.