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https://github.com/kubernetes/kubernetes/issues/50632
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/resource_management_guide/sec-memory
https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/
https://kubernetes.io/docs/tasks/configure-pod-container/assign-memory-resource/#exceed-a-containers-memory-limit