Kubernetes - Health Checks and Probes
Given this liveness probe configuration, what happens if the probe fails 3 times in a row?
livenessProbe:
httpGet:
path: /healthz
port: 8080
failureThreshold: 3
periodSeconds: 5
Given this liveness probe configuration, what happens if the probe fails 3 times in a row? livenessProbe: httpGet: path: /healthz port: 8080 failureThreshold: 3 periodSeconds: 5
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand failureThreshold meaning
If the liveness probe fails the specified number of times consecutively, Kubernetes restarts the container.Step 2: Confirm behavior on failure
FailureThreshold of 3 means after 3 failed checks, container restart is triggered, not pod deletion or ignoring failures.Final Answer:
The container is restarted by Kubernetes -> Option BQuick Check:
FailureThreshold triggers container restart [OK]
Quick Trick: FailureThreshold failures cause container restart [OK]
Common Mistakes:
- Thinking pod is deleted instead of container restart
- Assuming readiness state changes on liveness failure
- Ignoring failureThreshold effect
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