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Bug
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Resolution: Unresolved
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Normal
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None
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4.16
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Quality / Stability / Reliability
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False
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None
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None
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None
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None
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None
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Ready to Pick
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1
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None
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None
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None
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None
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None
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None
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None
Description of problem:
SMB CSI PV statically created were working fine until the ip of the server was changed while maintaining the hostname and its resolution: ``` 2025-06-13T07:26:10.664226842Z I0613 07:26:10.664173 1 utils.go:76] GRPC call: /csi.v1.Node/NodeUnpublishVolume 2025-06-13T07:26:10.669171436Z I0613 07:26:10.664193 1 utils.go:77] GRPC request: {"target_path":"/var/lib/kubelet/pods/f1702a64-021f-430e-a6c0-80419ca4a7b9/volumes/kubernetes.io~csi/smb-data-mfsshared-volume-08ab0f/mount","volume_id":"smb-data-mfsshared-volume-08ab0f"} 2025-06-13T07:26:10.669178448Z I0613 07:26:10.669170 1 nodeserver.go:101] NodeUnpublishVolume: unmounting volume smb-data-mfsshared-volume-08ab0f on /var/lib/kubelet/pods/f1702a64-021f-430e-a6c0-80419ca4a7b9/volumes/kubernetes.io~csi/smb-data-mfsshared-volume-08ab0f/mount 2025-06-13T07:26:10.670967804Z I0613 07:26:10.670955 1 mount_helper_common.go:93] unmounting "/var/lib/kubelet/pods/f1702a64-021f-430e-a6c0-80419ca4a7b9/volumes/kubernetes.io~csi/smb-data-mfsshared-volume-08ab0f/mount" (corruptedMount: false, mounterCanSkipMountPointChecks: true) 2025-06-13T07:26:10.671410333Z I0613 07:26:10.671403 1 mount_linux.go:362] Unmounting /var/lib/kubelet/pods/f1702a64-021f-430e-a6c0-80419ca4a7b9/volumes/kubernetes.io~csi/smb-data-mfsshared-volume-08ab0f/mount 2025-06-13T07:26:10.683423494Z I0613 07:26:10.683409 1 mount_helper_common.go:150] Warning: deleting path "/var/lib/kubelet/pods/f1702a64-021f-430e-a6c0-80419ca4a7b9/volumes/kubernetes.io~csi/smb-data-mfsshared-volume-08ab0f/mount" 2025-06-13T07:26:10.683701013Z I0613 07:26:10.683693 1 nodeserver.go:106] NodeUnpublishVolume: unmount volume smb-data-mfsshared-volume-08ab0f on /var/lib/kubelet/pods/f1702a64-021f-430e-a6c0-80419ca4a7b9/volumes/kubernetes.io~csi/smb-data-mfsshared-volume-08ab0f/mount successfully 2025-06-13T07:26:10.683715118Z I0613 07:26:10.683699 1 utils.go:83] GRPC response: {} 2025-07-05T07:12:01.719814030Z E0705 07:12:01.716658 1 utils.go:81] GRPC error: rpc error: code = Internal desc = failed to stat file /var/lib/kubelet/pods/ffd70dca-408f-4938-9c78-b8767313dade/volumes/kubernetes.io~csi/smb-data-mfsshared-volume-08ab0f/mount: lstat /var/lib/kubelet/pods/ffd70dca-408f-4938-9c78-b8767313dade/volumes/kubernetes.io~csi/smb-data-mfsshared-volume-08ab0f/mount: host is down 2025-07-05T07:13:52.306602004Z E0705 07:13:52.306545 1 utils.go:81] GRPC error: rpc error: code = Internal desc = failed to stat file /var/lib/kubelet/pods/ffd70dca-408f-4938-9c78-b8767313dade/volumes/kubernetes.io~csi/smb-data-mfsshared-volume-08ab0f/mount: lstat /var/lib/kubelet/pods/ffd70dca-408f-4938-9c78-b8767313dade/volumes/kubernetes.io~csi/smb-data-mfsshared-volume-08ab0f/mount: host is down ```
Version-Release number of selected component (if applicable):
Openshift 4.16.38
How reproducible:
N/A (not tested on a reproducer)
Steps to Reproduce:
1. Setup environment for SMB/CSI to work 2. Change IP of the SMB server but maintain dns resolution 3.
Actual results:
The PVs need to be remounted (deleting the pod)
Expected results:
Ideally the change should be transparent as all the references are with the dns hostname and smb should support automatic reconnection with dns resolution at kernel level
Additional info:
PV example: ``` spec: accessModes: - ReadWriteMany capacity: storage: 1Mi claimRef: apiVersion: v1 kind: PersistentVolumeClaim name: xxxxx namespace: xxxxx resourceVersion: "81089758" uid: 1ea3fa80-9bf2-44f7-b754-364905e5f119 csi: driver: smb.csi.k8s.io nodeStageSecretRef: name: xxxxx namespace: xxxx volumeAttributes: source: //xxxx/xxxx/xxxx/xxxx/xxxx/xxxx/xxxx/xxxx volumeHandle: xxxx-c50fc8 mountOptions: - dir_mode=0775 - file_mode=0664 - vers=3.0 - rw persistentVolumeReclaimPolicy: Retain volumeMode: Filesystem status: phase: Bound ``` How mounts are reflected on the host: ``` $ mount ... //xxxx/xxxx/xxxx/xxxx/xxxx/xxxx/xxxx on /var/lib/kubelet/plugins/kubernetes.io/csi/smb.csi.k8s.io/xxxx/xxxx type cifs (rw,relatime,vers=3.0,cache=strict,username=xxxx,uid=0,noforceuid,gid=100xxxxxx,noforcegid,addr=10.xx.xx.xx,file_mode=0664,dir_mode=0775,soft,nounix,serverino,mapposix,rsize=65536,wsize=65536,bsize=1048576,echo_interval=60,actimeo=1,closetimeo=1) ```