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Troubleshooting

Missing Nodes or None Found

Make sure the labels you use actually correspond to kubernetes nodes in your pod. Run the following command to see your labels

 kubectl get pods --show-labels
NAME                READY   STATUS    RESTARTS   AGE     LABELS
dremio-executor-0   1/1     Running   0          6h32m   app=dremio-executor,controller-revision-hash=dremio-executor-cf89fc46b,role=dremio-cluster-pod,statefulset.kubernetes.io/pod-name=dremio-executor-0
dremio-executor-1   1/1     Running   0          6h32m   app=dremio-executor,controller-revision-hash=dremio-executor-cf89fc46b,role=dremio-cluster-pod,statefulset.kubernetes.io/pod-name=dremio-executor-1
dremio-master-0     1/1     Running   0          6h32m   app=dremio-coordinator,controller-revision-hash=dremio-master-7bd8d69c,role=dremio-cluster-pod,statefulset.kubernetes.io/pod-name=dremio-master-0
zk-0                1/1     Running   0          6h32m   app=zk,controller-revision-hash=zk-67ffd74b67,statefulset.kubernetes.io/pod-name=zk-0

pick one for executors and one for coordinators that matches what pods you want logs for. In this case since I wand coordinators and executors I can run the following command

ddc -k -e app=dremio-executor -c app=dremio-coordinator