Checking for VM's with Lock

[greavette]

Hello Forum,

Referring to this post I found:

https://forum.proxmox.com/threads/find-vms-with-lock.54492/post-251027

It says to install "jq" and use the following command:

pvesh get /nodes/$(hostname)/qemu --output-format=json | jq -cr '.[] | select(.["lock"]) | .["vmid"]'

to check for VM's with a lock on them.

I have a cluster of Proxmox servers. Will the above command look at all VM's in my cluster and report on any VM in my cluster that has a lock on them?

Thank you.

 

[mira]

No, this only works for one node ($(hostname)). But you can run it for each node in the cluster replacing $(hostname) with the hostname of the node.
In addition to the above API call, you could also use pvesh get /cluster/resources --output-format json and look check for the 'lock' property. This is what the tree in the GUI uses.

 

[greavette]

Thanks very much @mira for you reply.

I've checked all my nodes and confirmed none are locked.

But is there a command I can use to lock a VM? I want to test these pvesh commands and confirm they show me a locked VM. I can see in qm help there is an unlock <vmid> command. But I don't see a corresponding qm lock command.

Thank you.

 

[mira]

That's not possible via a command, but you can add a lock line in the config, e.g. lock: backup. You can then unlock it again either via qm unlock or by deleting the line in the config.
Only do that with a test VM.