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Proxmox High Availability by Simon M.C. Cheng

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Troubleshooting Proxmox cluster problems

In this section, we will go through some common problems that we encounter during the operation of a Proxmox cluster, which are as follows:

  • HA VM start up problem
  • The fenced cluster node cannot recover automatically
  • The cluster member node cannot join back with the cluster
  • The cluster service cannot be restarted because of the DLM lockspace
  • Activity blocked within the cluster

Unable to start the HA-enabled VM

Symptom: When you try to start an HA-enabled VM, the operation fails with the following output:

Executing HA start for VM 201
Member vmsrv01 trying to enable pvevm:201… Aborted; service failed
TASK ERROR: command 'clusvcadm -e pvevm:201 -m vmsrv01' failed: exit code 254

Root cause: So, if you start the ...

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