hi all,
we’ve upgraded our Zookeeper that runs in Kubernetes (using bitnami helm chart) 
from version 3.6.1 to version 3.7.1 (also tried 3.8.0) and we’re observing 
random Liveness and Readiness failures:

Warning  Unhealthy  100s (x2 over 5m10s)  kubelet            Liveness probe 
failed:

Tried with plain Zookeeper official image, same behaviour starting from the 
version >= 3.7.0.

Readiness and liveness probes are running the following script: exec [/bin/bash 
-c echo "ruok" | timeout 2 nc -w 2 localhost 2181 | grep imok]
Kubernetes version: 1.21.14

Couldn’t find anything in the ZK logs (not trace/debug mode though). 

Did anyone else experience such issues when upgrading? We’ve returned back to 
the 3.6.1 and no failures are seen.

Thanks

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