44 lines
1.9 KiB
Markdown
44 lines
1.9 KiB
Markdown
## CSI driver debug tips
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### case#1: volume create/delete failed
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> There could be multiple controller pods (only one pod is the leader), if there are no helpful logs, try to get logs from the leader controller pod.
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- find csi driver controller pod
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```console
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$ kubectl get pod -o wide -n kube-system | grep csi-nfs-controller
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NAME READY STATUS RESTARTS AGE IP NODE
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csi-nfs-controller-56bfddd689-dh5tk 5/5 Running 0 35s 10.240.0.19 k8s-agentpool-22533604-0
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csi-nfs-controller-56bfddd689-sl4ll 5/5 Running 0 35s 10.240.0.23 k8s-agentpool-22533604-1
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```
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- get pod description and logs
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```console
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$ kubectl describe csi-nfs-controller-56bfddd689-dh5tk -n kube-system > csi-nfs-controller-description.log
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$ kubectl logs csi-nfs-controller-56bfddd689-dh5tk -c nfs -n kube-system > csi-nfs-controller.log
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```
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### case#2: volume mount/unmount failed
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- locate csi driver pod that does the actual volume mount/unmount
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```console
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$ kubectl get pod -o wide -n kube-system | grep csi-nfs-node
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NAME READY STATUS RESTARTS AGE IP NODE
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csi-nfs-node-cvgbs 3/3 Running 0 7m4s 10.240.0.35 k8s-agentpool-22533604-1
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csi-nfs-node-dr4s4 3/3 Running 0 7m4s 10.240.0.4 k8s-agentpool-22533604-0
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```
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- get pod description and logs
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```console
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$ kubectl describe po csi-nfs-node-cvgbs -n kube-system > csi-nfs-node-description.log
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$ kubectl logs csi-nfs-node-cvgbs -c nfs -n kube-system > csi-nfs-node.log
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```
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- check nfs mount inside driver
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```console
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kubectl exec -it csi-nfs-node-cvgbss -n kube-system -c nfs -- mount | grep nfs
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```
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### troubleshooting connection failure on agent node
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```console
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mkdir /tmp/test
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mount -v -t nfs -o ... nfs-server:/path /tmp/test
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```
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