Hands-on Lab·Certified Kubernetes Administrator
Troubleshooting Failed Jobs
A Job that gives up, read from the object rather than guessed at - and the one field that decides whether every attempt leaves evidence behind or only the last one does.
Troubleshooting Guide 85 of 103 Intermediate
- Kubernetes1.36.4
- Runtimecontainerd 2.2.6
- CNICalico v3.32.1
- TimeAbout 15 min
- Reviewed26 August 2026
Written against the versions above. The job-name label is `batch.kubernetes.io/job-name` on current releases; older clusters use the unprefixed `job-name`.
| Server Name | IP Address | OS | Roles | CPU | RAM | HDD |
|---|---|---|---|---|---|---|
| CKA1001 | 192.168.0.175 | Ubuntu 26.04 LTS | Control Plane Node | 2 Core | 4 GB | 50 GB |
| CKA1001-NODE01 | 192.168.0.176 | Ubuntu 26.04 LTS | Worker Node | 2 Core | 4 GB | 50 GB |
| CKA1001-NODE02 | 192.168.0.177 | Ubuntu 26.04 LTS | Worker Node | 2 Core | 4 GB | 50 GB |
| CKA1001-NODE03 | 192.168.0.178 | Ubuntu 26.04 LTS | Worker Node | 2 Core | 4 GB | 50 GB |
Before you start
- guide 30 - what a Job is for, before this covers what it does when it cannot finish.
-
A Job that cannot succeed
-
Why it stopped
-
Getting the logs when every attempt has its own Pod
-
The same failure with OnFailure