Openshift - liveness probe not working for http

Question

I have configured liveness probe using httpGet but it's failing with *error Client.Timeout exceeded while awaiting headers*

But the same API is working fine inside the container(using curl) and outside the container(postman). I have tried adding host attribute in liveness probe but no luck.

Any idea what's going wrong.

Liveness Probe:

 livenessProbe:
        initialDelaySeconds: 45
        periodSeconds: 10
        httpGet:
           path: /health
           port: xxxxx
        timeoutSeconds: 5

Version details:

OpenShift Master->v3.9.0+ba7faec-1
Kubernetes Master->v1.9.1+a0ce1bc657
OpenShift Web Console->v3.9.0+b600d46-dirty

Are you passing custom header in the request while trying from outside? — Sudhir, Jan 07 '19 at 07:28
@Sudhir am not passing any headers while executing from outside. — a8989, Jan 07 '19 at 10:52
Try adding headers like in [this example](https://raw.githubusercontent.com/kubernetes/website/master/content/en/examples/pods/probe/http-liveness.yaml) — Crou, Jan 09 '19 at 14:14
I found that there was a problem with /helath API. After fixing the problem liveness probe is worked fine. Thank you all for your support. — a8989, Jan 21 '19 at 17:04

score 1 · Answer 1 · edited Aug 05 '19 at 19:46

1

Try increasing the initialDelaySeconds, port lower, and check for any transitive features (such as PVC) causing slow loading:

livenessProbe:
  httpGet:
    path: /health
    port: 8080
  initialDelaySeconds: 200
  timeoutSeconds: 10
  periodSeconds: 10
  successThreshold: 1
  failureThreshold: 5

PS: For success on probe validation your HTTP return status must be greater than or equal to 200 and less than 400.

Hope this helps

edited Aug 05 '19 at 19:46

Michael Piefel

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answered Aug 05 '19 at 19:23

paulogrell

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What does ‘port lower’ mean? – Michael Piefel Aug 05 '19 at 19:46
Hey Michael, thanks for review, in the last pod security settings what i saw the high ports were locked by default, it is not a rule – paulogrell Aug 06 '19 at 14:15

Openshift - liveness probe not working for http

1 Answers1