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Troubleshooting Worker Nodes and Generic Components

This section applies to every node as it includes components that run on nodes with any role.

Check if the Containers are Running​

There are two specific containers launched on nodes with the worker role:

  • kubelet
  • kube-proxy

The containers should have status Up. The duration shown after Up is the time the container has been running.

docker ps -a -f=name='kubelet|kube-proxy'

Example output:

CONTAINER ID        IMAGE                                COMMAND                  CREATED             STATUS              PORTS               NAMES
158d0dcc33a5        rancher/hyperkube:v1.11.5-rancher1   "/opt/rke-tools/en..."   3 hours ago         Up 3 hours                              kube-proxy
a30717ecfb55        rancher/hyperkube:v1.11.5-rancher1   "/opt/rke-tools/en..."   3 hours ago         Up 3 hours                              kubelet

Container Logging​

The logging of the containers can contain information on what the problem could be.

docker logs kubelet
docker logs kube-proxy