Reputation: 13
I am trying to understand the retry behavior for liveness probe, its not clear from documentation.
I will to illustrate with an example. Consider the following spec for liveness probe
periodSeconds: 60
timeoutSeconds: 15
failureThreshold: 3
Lets assume the service is down
Which behavior is expected?
the probe kicks off at 0s
sees a failure at 15s, (due to timeoutSeconds 15)
retry1 at ~15s, fail at ~30s and retry2 at ~30s, fail at ~45 (retry immediately after failure)
ultimately restart pod at ~45s (due to failureThreshold 3)
or
the probe kicks off at 0s
sees a failure at 15s, (due to timeoutSeconds 15)
retry1 at ~60s, fail at ~75s and retry2 at ~120s, fail at ~135s (due to periodSeconds 60, doesnt really do retry after a failure)
ultimately restart pod at ~180s (due to failureThreshold 3)
Upvotes: 1
Views: 804
Reputation: 54247
periodSeconds
is how often it checks. If you mean retry after crossing the failure threshold it never will because the container is full restarted from scratch.
Upvotes: 2