Multi attach error for volume longhorn

But this approach is not suitable for our use case as the solution needs to be multi cloud solutiun Red Hat Customer Portal - Access to 24x7 support and knowledge. And Both the volumes have 2 replicas. Nov 23, 2020 · Thank you so much. 0, a new setting Automatically Delete Workload Pod when The Volume Is Detached Unexpectedly is introduced so that Longhorn will automatically delete the workload pod that is May 29, 2023 · Volume multi-attach: Enable attaching a volume to multiple servers¶ The ability to attach a volume to multiple hosts/servers simultaneously is a use case desired for active/active or active/standby scenarios. 2 Node config OS type ：centos7 CPU per node: 4 Memory per node: 8G Disk type：hdd Network bandwidth and latency b Easy incremental snapshots and backups. The command "kubectl get pv" did no longer list the volume. 0; K8s: v1. I first thought this was a k3s bug ( k3s-io/k3s#2966 ), but it seems it is probably LH problem. Then the volume on the node will become state unknown. And If replica rebuilding is triggered and the IM associated with another replica is also crashed. Scheduled backups of persistent storage volumes in Kubernetes clusters is simplified with Longhorn’s intuitive, free management UI. Given 1 RWO and 1 RWX volume is attached to a pod. We have an improvement for this case in 1. 3 and v1. Ancak, PVC bounding amacıyla kullanılmak üzere PVC/PV’de StorageClassNamealanı ayarlanmalıdır. 2 is not deployed on at least one of the the replicas' nodes or the node that the volume is going to attach to That's because the PVC is retained to reuse, so even the terminating pod has been deleted and recreated, it's still unable to attach the volume successfully if the volume is 1 replica and stored in the down node as well. on top of Longhorn. Fork 568. Airflow tasks generally running within a few minutes, resulting in frequent mount/unmount operations on the ReadWriteMany PVC. Ruben Gonçalves. 1 Kubernetes version: v1. Right now I have some VMs setup as master nodes, worker nodes, and storage (for longhorn) nodes. The RWX volume attachment is considered as successful: Mar 20, 2018 · Put another way – the Warning Failed Attach Volume is an outcome of a fundamental failure to unmount and detach the volume from the failed node. The backup volume will contain multiple backups for the same volume. io Apr 20, 2018 · Kubelet daemon, which manages mounts of Volumes, should set the information about a new status of volume to enable the Scheduler to spawn a Pod on the other node. Jan 23, 2019 · On a Single Node RKE (0. The volume is replicated 3 times, one replica on each worker node. When the node is rebooted, Longhorn will mark the node unavailable immediately and delete the instance manager pods on the node. 0 I now see an issue that a usual run of the test suite somehow breaks the environment and the pods requesting Longhorn PVCs cannot be started anymore: Warning FailedMount 2m29s kubelet Unable to attach or mount volumes: unmounted volumes=[test-pvc], unattached volumes=[kube-api-access-pmp7m test-pvc]: timed out waiting Sep 29, 2021 · For production workloads and services that need roll out deployments, scaling up, using EFS volumes or NFS volumes would be ideal, where it supports multi attach. Jul 11, 2020 · @Kamaroth92 Nice catch!. Longhorn implements distributed block storage using containers and microservices. For details on how PVs and PVCs work, refer to the official Kubernetes documentation on storage. 2/26/2019. The rest are 5-10GB. Attach failed for volume "pvc-b91abf30-485d-4aeb-96e1-938a50bdb291" : rpc error: code = Internal desc = volume pvc-b91abf30-485d-4aeb-96e1-938a50bdb291 failed to attach to node node03 with attachmentID csi Jul 11, 2023 · The volume pvc-caa9a39a-e480-490f-a601-dbf5d32e3cb5 is already attached to node01 There are two attachmentTickets for the volume, and the satisfied ticket's attach type is longhorn-api which means the volume was requested to attach from LH UI/API. Symptoms. 3. Feb 26, 2021 · This exact thing happens to any pod using Longhorn volumes at random times. Hence, you need to manually create Longhorn volume volume_handle = "maria-data" via Longhorn UI before applying these 2 manifests. [longhorn-manager-jtrpl] time="2021-03-26T21:01:51Z" level=debug msg="No need to attach volume pvc-32ca9c71-0f79-4aec-bcc0-f7a20960047b since it's shared via nfs://10. 2. This issue is likely to happen if the open-iscsi version is before or equal to 2. add your pv and pvc yamls. These problems are resolved, but may have caused our issues with longhorn. The pod would be stuck in terminating forever since Kubelet refuses to unmount the block volume. The share manager pod is actually an NFS server. kubernetes-pvc. I am very new to k8s and I am trying to learn. 29s kubelet Unable to attach or mount volumes: unmounted volumes= [dy-fc-unity May 7, 2021 · Installation goes fine, with no errors, and I can access the web UI, but whenever I try to start a pod that uses a Longhorn PVC, I get: Warning FailedAttachVolume 1s (x6 over 19s) attachdetach-controller AttachVolume. yml apiVersion: v1 kind: PersistentVolumeClaim metadata: name: my-pvc spec: accessModes: -ReadWriteOnce resources: requests: storage: 1Gi storageClassName: longhorn. 7k. We see the following events in the namespace longhorn May 7, 2020 · Describe the bug The bug happens while trying to upgrade k3os with parameters drain: force: true On our cluster we have a docker registry that uses a longhorn volume to store its images. To address those issues, we’ve implemented the native RWX support in Longhorn v1. Before deleting the volume attachments, please make sure attachments of only those nodes are deleted that are not part of the kubectl get nodes command's output. 38/pvc Volume instance manager is on bpknsvmonp01. x. 9 Node config OS type and version: Ubuntu CPU per node: 8 Memory per node: 64 Disk type: SSD Network bandwidth and latency between the After updating to 1. However, the following is in the logs every few minutes: Jan 10 03:09:13 capital k3s[406909]: E0110 03:09:13. This page describes how to set up persistent storage with a local storage provider, or with Longhorn. Apr 23, 2021 · edited by PhanLe1010. kubernetes. I don't know if there is a node name change or something else, but can you try: scale down the statefulset to 0; check Longhorn UI, make sure the volume is detached. 0 Kubernetes version: v1. Sep 9, 2021 · There are at least three possible solutions: check your k8s version; maybe you'll want to update it;; install NFS on your infrastructure;; fix inbound CIDR rule; k8s version. 4+k3s1, install Longhorn 1. g. Member. You are using gcePersistentDisk in your PV/PVC definition. 15. Attach failed for volume "volume-name" : CSINode node-name does not contain driver driver. img) directly. This pod, I can leave in this weird state to help debug/troubleshoot if the devs would like too. Looks like you have a dangling PVC and/or PV that is attached to one of your nodes. Note that the attach-volume command can be run from any computer (even our laptop) – it’s only an AWS api call. Sep 18, 2018 · Depending on how large the volume is, that initial detach process can take longer, and if long enough, kubernetes may try multiple times before it is detached (with increasing delays between attempts) which may result in a rather long wait time for the new pod to be ready. Additionally, there are times when multiple pods mount this volume simultaneously. Jan 11, 2023 · In some of the cases where you see that the PVC attached to another pod is throwing Multi-Attach error, there you can free up the volume from that pod and attach to the pod where you would like to but what happen in those cases where PVC is showing attached to the same pod which you are trying to reinitialize. list of unmounted volumes=[logs filebeat-data]. Apr 19, 2019 · I try to create a persistent volume claim and bind to a pod. I'm running Longhorn out-of-the-box without any modifications. After pvc and pod created , pv is succesfully produce and bound to claim. Aug 24, 2023 · Aug 24, 2023. This creates a subdirectory in /var/lib/iscsi/nodes. Nov 17, 2020 · But as soon as I scale back up, it goes to "attaching" and Kubernetes reports AttachVolume. Consult your distribution documentation for a more permanent solution. Volumes can be attached successfully to pods/ nodes. Jun 1, 2023 · The Kubernetes attach/detach controller is also concerned with whether or not a file system on a volume can be mounted at the proper location on the node. Support was added in both Cinder and Nova in the Queens release to volume multi-attach with read/write (RW) mode. Longhorn says the volume is mounted to bpknsvmonp01; What can I do to make it all run on bpknsvaifp01? There are no errors in any logs of the Replica and Volume instance managers. It’s the same as AWS EBS and Google Persistent Disk, which can only be mounted on one node. 5 but only when the replica number is more than 1. Feb 4, 2022 · attachdetach-controller AttachVolume. What did you expect to happen: Pods should dynamically assume PVCs Sep 21, 2021 · Longhorn worked just fine for 5-6 months with exactly the same cluster configuration. 0 on a self managed kubernetes cluster with one master node and 3 worker nodes. When The Volume & snap meta files are deleted one by one. Mar 8, 2022 · Longhorn. Using the test case below, the volume fails to attach. After running for a period of time, we've encountered the following issues: Environment. Solution: Scale down all workload that is using this volume; Go to Longhorn UI -> click on the volume tab -> go to volume detail page. For Amazon EBS Multi-Attach, choose Enable Multi-Attach. 7 Architecture: 3 Masters 15 Workers What happened: One of the pods for some “unknown” reason went down, and when we try to lift him up, it couldn’t attach the existing PVC. Longhorn will stop the engine/replica processes in the old pods and start them on the new instance-manager pods when the volumes are reattached. 81 1 1 3. hillbun added the kind/question label on Nov 15, 2020. Contributor. Star 5. Installed longhorn via helm chart on a 4-raspi k3s, no arguments. Then Now, we want to make each Longhorn volume going through attach/detach cycle. Jan 22, 2021 · Users have to create the NFS provisioner and use Longhorn volume backing it manually. 6 participants. Notifications. Amazon EBS Multi-Attach allows you to attach a single Provisioned IOPS SSD (io1 or io2) volume to multiple instances in the same Availability Zone. A persistent volume (PV) is a piece of storage in the Kubernetes cluster, while a persistent volume claim (PVC) is a request for storage. Mar 8, 2021 · Mount my XFS volume o /my-longhorn-dir/longhorn/ (before install longhorn); When I deploy my cluster after all that, everything works fine, but when I reboot the cluster machine my pods that uses longhorn-volume become pending (waiting for longhorn volume); Check the volume and find out it is on "faulted" state, wait for 30 min and nothing happens; Oct 20, 2022 · This volume only has 1 replica so it become faulted. 0. 4; Installation method (e. So a Longhorn volume can be attached from the Longhorn UI point of view (the block device is available on the node), but not mountable (the file system doesn't exist or is corrupted). A backup target is the endpoint used to access a backupstore in Longhorn. Apr 21, 2021 · Troubleshooting: Longhorn default settings do not persist Troubleshooting: Recurring job does not create new jobs after detaching and attaching volume Troubleshooting: Use Traefik 2. In the UI, the disk is constantly flapping between attaching and detaching. To Reproduce. For example my service (postgresdb) runs on worker-node-2. Then Volume should not stuck in attaching-detaching loop. There is no problem until here. Mar 26, 2021 · Check the Longhorn UI, the attach option is available for volume. Attach failed for volume "ombi-config" : rpc error: code = Aborted desc = The volume ombi-config is attaching forever. Asking for help, clarification, or responding to other answers. It is important to specify the storageClassName as longhorn specifically, to ensure Longhorn will be the provider of this Oct 27, 2020 · @kevinsulatra somehow this volume was specified to attach to node ip-x. resources: Jan 13, 2021 · No branches or pull requests. To use a ZRS disk, create a new storage class with Premium_ZRS or StandardSSD_ZRS, and then deploy the PersistentVolumeClaim (PVC) referencing the storage. This is the only one where the volume is over 80GB of data. One Longhorn volume would be shared across different NFS volumes, so it’s hard to properly budget the space, or backup/restore the associated volumes. Now that AWS has attached the EBS volume to our node – it will be viewable on that node at /dev/xvdf (or whatever device RWX volumes fail more frequently and take longer to attach to the pod. Aug 12, 2021 · Longhorn manager starts to attach the volume then starts a share manager pod. Longhorn creates a dedicated storage controller for each block device volume and synchronously replicates the volume across multiple replicas stored on multiple nodes. 43. Oct 23, 2017 · Based on your description what you are experiencing is exactly what is supposed to happen. Feb 25, 2019 · 1 Answer. vsphere. Download the official script from longhorn and run the script to check whether the dependencies are satisfied or not in your cluster. ZRS disk volumes can be scheduled on all zone and non-zone agent nodes. When working with Kubernetes and managing pod volumes, encountering the “Multi-Attach error for Volume” can be puzzling and disruptive. It is generally possible to mitigate the issue by disabling TX checksum offloading for Flannel interfaces on all nodes in the cluster. storageClassName: longhorn. If you look at this the PVCs in a StatefulSet are always mapped to their pod names, so it may be possible that you still have a dangling pod (?) Dec 2, 2023 · The yaml for a 1GB volume claim would look like this: pvc. (Optional) For Snapshot ID, choose the snapshot from which to create the volume. The RWX volume can be attached in 5~30 seconds typically. Longhorn issue #2144 Nov 27, 2020 · One of it as quite big now with about 100Gb used data. All Longhorn versions. Expected behavior. Multi-Attach error for volume "pvc-0122bbe5-ca54-4e73-87be-5cbe9afa691a" Volume is already exclusively attached to one node and can't be attached to another. Longhorn version: v1. If desired, after expansion: Create a new volume (with the correct size). Jan 24, 2023 · Reference: Updating a deployment that uses a ReadWriteOnce volume will fail on mount. – Satish Kumar Nadarajan Mar 28, 2022 at 4:03 Apr 6, 2021 · ) the affected volume is still attached. 22. Sep 5, 2023 · Workaround. To delete the attachments, remove the finalizer from all the volumeattachments that belonged to older nodes. I could just delete it and restart / restore from backup. Backup volumes can be viewed on the Backup page in the Longhorn UI. After scale down to 0 and rescale to 1 of the container the discs could be attached again. 9. Rancher Catalog App/Helm/Kubectl): Helm, app catalog Aug 19, 2021 · Applicable versions. Resolving Multi-Attach Error: Volume Already Exclusively Attached to One Node in RHOCP. After an update of Docker to Version 18. Apr 12, 2020 · I am running longhorn 0. x as ingress controller Troubleshooting: Create Support Bundle with cURL Troubleshooting: Longhorn RWX shared mount ownership is shown as nobody in consumer Pod step-1: Check for the dependencies and pre-requisites for longhorn in your cluster. 3. 4 is not deployed on at least one of the the replicas' nodes or the node that the volume is going to Jul 29, 2019 · If I use the rancher local-path sc or OpenEbs sc the volume gets mounted in the pod ok, so it seems longhorn related. Longhorn had been running fine, but now some volumes are not able to detach or attach properly. The drain command should have Sep 18, 2018 · I've been using longhorn quite a bit and do notice that if the detach process takes a little while (which it normally does with fairly large volumes) the attach process will fail. You can ssh into the node and run a df or mount to check. Feb 2, 2022 · Multi-Attach error for volume "pvc-xxx" Volume is already exclusively attached to one node and can't be attached to another. Once the share manager pod is up and running. You can choose one of the following solutions to fix this issue: Sep 11, 2018 · Longhorn is a Read-Write-Once type storage for Kubernetes. May 20, 2021 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Click on the menu bar on top right -> select salvage volume -> select and salvage the only replica; Scale up the workload Apr 10, 2024 · Solution 2: Use zone-redundant storage (ZRS) disks. Log. name: longhorn-volv-pvc. Manually attach the old and new volume to the same node. Longhorn version Mar 15, 2022 · Hi, Describe the bug When creating volumes using ReadWriteMany access mode, the longhorn UI shows the volume is created and in a healthy state. . We did however experience latency issues with our config store (galera-cluster) in the past that caused k3s components to crash. Pod fails to attach to existing RWX volume, although several other pods connected. Longhorn’s built-in incremental snapshot and backup features keep the volume data safe in or out of the Kubernetes cluster. Sep 26, 2017 · We got this "Multi-Attach error" also on Azure, in v1. I chech it from browser and there is 1 replica and 1 master persistent volume on nodes. Backup volume. (I removed longhorn before installing openebs just to be sure) There is nothing more running in the cluster, I use the master and 1 node so set the replicas to 2. Longhorn HA SLA with RWO implementation Environment: Longhorn version: 1. Products & Services. 3, v1. One of the examples is kubectl cp, which needs tar in the container image. It seems that there are only 2 worker nodes for the Longhorn system. 8 and a reboot of all containers, longhorn was not able to attach the discs to the workload container. A Longhorn volume is the underlying of the PV here. Found the culprit. I have 2x masters, 2x workers, and 5x storage. 26. 17. This can be done temporarily with a command like sudo ethtool -K flannel. So I wouldn’t be surprised that persistent volume depends on /etc/passwd to check access, or /etc/hosts to connect to the PV. Jan 8, 2021 · For Longhorn versions earlier than v1. Amazon EBS Multi-Attach isn't supported in General Purpose SSD volumes such as gp2 and gp3. Dec 28, 2023 · No, it is not possible to mount the snapshot file (volume-head-001. Since the node is down, the pod deletion will get stuck in state Terminating. You can trigger this by draining each node that is having Longhorn volumes attaching to it. 5. But I think it would help to improve longhorn. Ve kullanıcıların ilgili StorageClass nesnesini oluşturmasına gerek yoktur. Feb 1, 2022 · Kubernetes version1. Attach failed for volume "pvc-c0d81c45-778e-44a3-8808-2179d8515c61" Mar 22, 2023 · Describe the bug (🐛 if you encounter this issue) Utilizing the example PVC deployment with a basic bash container (not mysql, which would write data) The pod gets scheduled, volume gets created, and everything appears to be operational. However, when mounting it in a pod, the mount fails with the following error: To Reproduce Cr Apr 6, 2022 · After an unexpected crash of the Longhorn volume (due to network, CPU pressure, hardware problem, etc…), the user cannot delete the pod. Create Hetzner Debian-10 VPS, run v1. But, you have the 'NotReady' status, which means Kubernetes cannot communicate with the Kubelet to check the current status of Volumes. Clicking it doesn't make any difference but UI sends the request to backend to attach the volume. I changed the sc as you suggested, new issue persisted. A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more. When you create a persistent workload in Amazon EKS with Amazon EBS storage, the default volume type is gp2. io/csi: attacher. For more information, see Azure disk availability zone support. Pod Events: share manager logs: Environment. When I enable persistence in the helm chart, a helm upgrade command always fails with Mar 31, 2021 · Troubleshooting: Longhorn default settings do not persist Troubleshooting: Recurring job does not create new jobs after detaching and attaching volume Troubleshooting: Use Traefik 2. Nov 17, 2022 · Body: [code=Server Error, detail=, message=unable to attach volume pvc-99ec368e-d088-485f-b160-0fa5718f5f87 to machine-1: cannot attach volume pvc-99ec368e-d088-485f-b160-0fa5718f5f87 because the engine image longhornio/longhorn-engine:v1. It’s a distributed block storage solution rather than a distributed file system solution, so it cannot be written at the same time for the different nodes. 0, each longhorn volume is associated with a volumeAttachement resource. Knowledgebase. But in the Longhorn UI I can still see the volume (as it is durable) and I can see that it is attached (!) with the following status details: Dec 10, 2022 · Reason. ReadWriteMany might seem like a quick solution, but it's not the right way to go according to best practices. Scale up the statefulset to 1. 4 and in some OKD versions Dec 11, 2023 · LAST SEEN TYPE REASON OBJECT MESSAGE 75s Warning FailedAttachVolume pod/keycloak-test-postgresql-0 AttachVolume. if a 2 GiB volume was expanded by a 2 TiB engine). ReadWriteOnce access mode still can allow multiple pods to access the volume when the pods are running on the same node. The accessMode is ReadWriteOnce - this means that this PV can only be attached to a single Node (stressing Node here, there can be multiple Pods running on the same Node using the same PV). accessModes: - ReadWriteOnce. If Longhorn is able to detach the volume from the node, it will clean up the subdirectory in /var/lib/iscsi/nodes. 20. 8. yasker commented on Nov 18, 2020. Which as you can see from here: ReadWriteOnce the volume can be mounted as read-write by a single node. 2 Cloud Provider Vsphere version 6. There are multiple volumes to be attached to the pod if a few of volumes get attached Successfully and the others failed to attach. Provide details and share your research! But avoid …. meta. Dec 1, 2017 · $ aws ec2 attach-volume \ --device /dev/xvdf \ --instance-id instance-3434f8f78 --volume-id vol-867g5kii. vmware. Dec 22, 2020 · Hi all! I am deploying Grafana on a Managed K8S instance on OVH cloud. 5) Cluster with Kubernetes 1. SetUp failed for volume pvc mount failed: exit status 32 · Issue #77916 · kubernetes/kubernetes May 29, 2022 · Create a new Longhorn volume from Longhorn UI and try to attach to any node. It seemed the issue was on the limit of the node number of the volume that can be attached. A backup volume is the backup that maps to one original volume, and it is located in the backupstore. 24. 1 tx-checksum-ip-generic off . volumesInUse is not removed even after pod with that volume has already been moved from the node for a very long time, I filed another issue here: #62282 Nov 9, 2021 · The user can check which volumes are still using the old engine manager pods from Volume > Name > Volume Details > Instance Manager on Longhorn UI. Longhorn is a lightweight, reliable, and powerful distributed block storage system for Kubernetes. 4. This volume cannot be attached anymore. Dec 15, 2020 · This may help you understand the root of the issues: 1. 1. May 7, 2020 · Describe the bug Volume fails to reattach when the node is powered down and the pod migrates To Reproduce Attach a volume to a pod on node 1 Power down node 1 The pod/workload goes into "Unknown" state when seen from Rancher UI. Since v1. The problem with this script is that it works incrementally and will only show one dependency missing during a run. Environment Longhorn version: 1. – Vit. What are you trying to achieve? Are you trying to manually attach and mount a Longhorn volume? If so you can: Go to Longhorn UI and attach the volume Jan 9, 2022 · Describe the bug The UI shows an encrypted volume healthy. I have also tried using ReadWriteMany along with NFS persistent volume. I drained one of my k8s nodes and after that, some of my pods show these errors and cannot be running: AttachVolume. I’d try if mounting /etc/apache2 instead of /etc would work if I were you. persistent-volume-claims. If you don't want to use Longhorn UI. Attach failed for volume "csiunity-d93a52838d" : rpc error: code = InvalidArgument desc = runid=95 Cannot publish volume as protocol in the Storage class is 'FC' but the node has no valid FC initiators Warning FailedMount. I'm having to manually scale down my deployments to 0, wait for the volume to show detached in longhorns UI then scale back up to 1 in order to have a smooth transition. Mar 10, 2024 · As someone has already pointed out one go would be changing the access mode from ReadWriteOnce to ReadWriteMany to fix the Multi-Attach error, it’s like putting a temporary patch on a bigger Mar 17, 2024 · As someone has already pointed out one go would be changing the access mode from ReadWriteOnce to ReadWriteMany to fix the Multi-Attach error, it's like putting a temporary patch on a bigger problem. Feb 2, 2022 at 12:01. Copy all data from the old volume to the new volume using cp or rsync at the filesystem level. #2947 For Size and IOPS, choose the required volume size and the number of IOPS to provision. 2. Caused by the permission issue related to the host SELinux policies which prevent iscsiadm from operating correctly. x (previous spec one). asked Feb 1, 2022 at 17:52. 6 Feb 22, 2022 · Longhorn uses the iscsiadm command to create an iSCSI block device individually when a Longhorn volume is attached. Jul 18, 2022 · Describe the bug Volume detaching and attaching repeatedly while creating multiple snapshots with a same id To Reproduce Steps to reproduce the behavior: Create a RWO volume Create a snapshot via CSI Somehow the external volume snapshot Jan 15, 2024 · Not: Longhorn volume PV/PVC oluşturulurken zaten mevcut olduğundan, Longhorn volume ünü dinamik olarak sağlamak için bir StorageClass gerekli değildir. This error typically occurs when Jul 26, 2023 · In some situations, the above volume expansion may be unacceptable (e. Aug 22, 2022 · Question when i deployed longhorn, the pod cannot use the pvc. This prevents the user from cleaning up the pod and spinning up a new replacement pod thus leading to a long Aug 15, 2021 · unable to attach volume pvc-65c838c5-0494-4a28-87ad-5d5883f28c4e to hostname: cannot attach volume pvc-65c838c5-0494-4a28-87ad-5d5883f28c4e because the engine image longhornio/longhorn-engine:v1. This only happened to a specific pod, all the others didn’t have any kind of problem. 6, we found volume in node. MountD Jan 17, 2021 · Kubernetes PVC and PV are different from Longhorn volume. The volume is for the data store. If the user wants to clean up old instance manager pods, all volumes using the old engine manager pods need to be detached and then perform the live upgrade. Related information. We have 20 namespaces, each have a RWX volume shared amongst 5 pods 19 are stable, 1 gets the below error, consistently…. go:340] kubernetes. However, if the node crashes or is rebooted when a Longhorn Kubernetes depends on files of container image in several ways. Apr 9, 2019 · Warning FailedMount 5m (x4 over 12m) kubelet, k8s-agents-64535979-2 Unable to mount volumes for pod "kalo-exchange-mobile-54456b48b-g2fqz_kalo(e96c104b-5b99-11e9-a6b9-000d3a2cf7e3)": timeout expired waiting for volumes to attach or mount for pod "kalo"/"kalo-exchange-mobile-54456b48b-g2fqz". 0, Longhorn will try to remount the volume automatically, but the scenarios it can handle are limited. list of unattached volumes=[config logs filebeat-config Feb 28, 2019 · Each PVC is referring to a Persistent Volume where you decided that the access mode is ReadWriteOnce. I also tried to investigate other issues regarding "stuck attaching" but none of the issues seems to be my problem. The pod using a longhorn volume with an ext4 filesystem stays in container Creating with errors in the log. The data structure in that snapshot can only be understand by a Longhorn engine. longhorn. For Availability Zone, choose the same Availability Zone that the instances are in. x as ingress controller Troubleshooting: Create Support Bundle with cURL Troubleshooting: Longhorn RWX shared mount ownership is shown as nobody in consumer Pod Mar 4, 2024 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Feb 16, 2023 · Describe the bug (🐛 if you encounter this issue) Hi. 678937 406909 csi_attacher. The message Volume is already exclusively attached to one node and can't be attached to another is a classic symptom of this happening (you will see this message in the output of $ kubectl describe Jan 15, 2021 · Another one (iris-65dcfd9f97-75vld), as expected indicates the failure to attach volume: Warning FailedMount 48s (x3 over 9m54s) kubelet Unable to attach or mount volumes: unmounted volumes=[iris-external-sys], unattached volumes=[iris-external-sys cpf-merge default-token-nxkpw]: timed out waiting for the condition Aug 8, 2023 · You need to delete these attachments to workaround the multi attach errors. longhorn / longhorn Public. Since Longhorn version v1. There is a known issue: MountVolume. 188. Multi-Attach error for volume "pvc-80c52f0e-8ebc-4f29-b93a-12bd0978be8b" Volume is already exclusively attached to one node and can't be attached to another · longhorn longhorn · Discussion #5369 · GitHub. I observe the following behavior: To Reproduce I have deployed a pod bound to a longhorn volume. An overview of the status of some volumes: An individual volume that is stuck in Detaching: To Reproduce Steps to reproduce the behavior: I can create and attach a new volume, but I have several pre-existing volumes that are stuck in this state. how to fix this issue. As a test I created a workload in rancher with the standard Ubuntu image and attached a PVC/PV on longhorn to the workload. Environment. Deletion of Volume/Snap. av ld qa vv oi wb yc lf fm cj