Graceful Node ShutDown is Not Working.
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Graceful NodeShutdown is not working for the PMK cluster nodes.
Pods on the cluster node gets stuck in the Terminating state after unexpected shutdown even after graceful shutdown is configured.
Platform9 Managed Kubernetes – All Versions
Cluster Node OS: RHEL7, CentOS7
Cluster Node systemd version earlier than systemd 251
There is an upstream issue with the systemd where the systemd inhibitors are not honoured by the systemd.
Due to this the cluster nodes never shutdown gracefully, instead they shutdown immediately as soon as the underlying system shutdown event has occurred.
This further results in failure of pod/container graceful shutdown and the pods remain in the terminating state even after configuration of graceful node shutdown.
Upgrade the systemd version on the affected nodes to systemd 251 or beyond that.
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