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[BUG] Cannot delete replicas via UI #6963

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@batulziiy

Description

Describe the bug (🐛 if you encounter this issue)

One of the nodes went down due to disk pressure. Actually it's my fault that didn't manage to keep available space. But how can I find and remove replicas? I have 4 nodes and each volume has 3 replicas, to make some space available need to delete some replicas of big sized volumes. How do I find a replica and delete them with kubectl?

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Expected behavior

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Environment

  • Longhorn version:
  • Installation method (e.g. Rancher Catalog App/Helm/Kubectl):
  • Kubernetes distro (e.g. RKE/K3s/EKS/OpenShift) and version:
    • Number of management node in the cluster:
    • Number of worker node in the cluster:
  • Node config
    • OS type and version:
    • Kernel version:
    • CPU per node:
    • Memory per node:
    • Disk type(e.g. SSD/NVMe/HDD):
    • Network bandwidth between the nodes:
  • Underlying Infrastructure (e.g. on AWS/GCE, EKS/GKE, VMWare/KVM, Baremetal):
  • Number of Longhorn volumes in the cluster:
  • Impacted Longhorn resources:
    • Volume names:

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    kind/bugrequire/backportRequire backport. Only used when the specific versions to backport have not been definied.require/qa-review-coverageRequire QA to review coveragestale

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