facing some problem while using docker stats command in kubernetes.. While i using docker stats in my kube-node its not displaying the NET I/O.. My kube version is 1.2.4 and my docker version is 1.9.1.
CONTAINER CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O
494ffcff748a 0.06% 508.2 MB / 7.864 GB 6.46% 0 B / 0 B 106.4 MB / 5.841 MB
Particularly in GKE its not showing NET I/O. Do i need to enable anything to get this NET I/O values?.. Thanks Advance...
There's a separate container that'll have the network stats for your entire pod, since all the containers in a pod share the same network namespace. If your container is named skydns and its pod is named kube-dns in the kube-system namespace (and thus the name of your skydns container looks something like k8s_skydns.<short-hash>_kube-dns-v11-ulru9_kube-system_<hash>), then there'll be another container called k8s_POD.<short-hash>_kube-dns-v11-ulru9_kube-system_<hash>, which the distinguishing characteristic being that it has the string POD where the container name typically goes.
There was a discussion explaining the purpose of the pause container on the Kubernertes email list here: https://groups.google.com/forum/#!topic/google-containers/jVjv0QK4b_o