Available CPU Count incorrect when creating KVM from CLI

I created two VM's with the UI with the following.

8 cores
128GB

Then I see the used core count is wrong, which says available is only 16.

"used": {
        "cores": 64,
        "memory": 1040384,
        "local_storage": 728000000000
    },
    "total": {
        "cores": 80,
        "memory": 772649,
        "local_storage": 5952253325312
    },
    "available": {
        "cores": 16,
        "memory": -267735,
        "local_storage": 5224253325312
    },

Can you please provide whether this is a LXD VM host or Virsh VM host? And what version of LXD if a LXD VM Host?

Hi,

It's a virsh VM host.

BTW, the Virsh host was deployed via MAAS as a KVM Host using Ubuntu 20.04.

could you please provide the output of `maas $profile vm-host read $vmhost_id`

Here you go!

Success.
Machine-readable output follows:
{
    "used": {
        "cores": 64,
        "memory": 1040384,
        "local_storage": 728000000000
    },
    "type": "virsh",
    "version": "6.0.0",
    "pool": {
        "name": "default",
        "description": "Default pool",
        "id": 0,
        "resource_uri": "/MAAS/api/2.0/resourcepool/0/"
    },
    "tags": [
        "pod-console-logging",
        "virtual"
    ],
    "id": 62,
    "zone": {
        "name": "default",
        "description": "",
        "id": 1,
        "resource_uri": "/MAAS/api/2.0/zones/default/"
    },
    "memory_over_commit_ratio": 1.0,
    "host": {
        "system_id": "atd7rb",
        "__incomplete__": true
    },
    "total": {
        "cores": 80,
        "memory": 772649,
        "local_storage": 5952253325312
    },
    "name": "7920r2",
    "architectures": [
        "amd64/generic"
    ],
    "storage_pools": [
        {
            "id": "760c012a-4846-4d8d-a204-d9f4f5cff24e",
            "name": "maas",
            "type": "dir",
            "path": "/var/lib/libvirt/maas-images",
            "total": 5952253325312,
            "used": 728000000000,
            "available": 5224253325312,
            "default": true
        }
    ],
    "capabilities": [
        "composable",
        "dynamic_local_storage",
        "over_commit",
        "storage_pools"
    ],
    "available": {
        "cores": 16,
        "memory": -267735,
        "local_storage": 5224253325312
    },
    "cpu_over_commit_ratio": 1.0,
    "default_macvlan_mode": null,
    "resource_uri": "/MAAS/api/2.0/vm-hosts/62/"
}

ScreenShot of the Available Cores in the UI vs the JSON output.

Could you also include a screenshot of the VMhost details page?

Also, does refreshing the VM host change anything?

I've refreshed on all my hosts and it doesn't match the UI count on CPU or Memory availability at all, we can do a zoom call for debugging if you're interested.

I have a 2nd MAAS deployment running on a clean MAAS installation and added an existing Host running 20.04 with virsh to manage, and when creating the Virtual Machines, it shows the same behavior.

Could you please paste the output of the following query on the maas database:

select * from maasserver_virtualmachine where bmc_id=$vmhost_id;

maasdb=# select * from maasserver_virtualmachine where bmc_id=62;
 id | created | updated | identifier | pinned_cores | unpinned_cores | memory | hugepages_backed | bmc_id | machine_id | project
----+-------------------------------+------------------------------+------------+--------------+----------------+--------+------------------+--------+------------+---------
 62 | 2021-10-13 22:49:34.808538-05 | 2021-10-13 22:49:34.81064-05 | cloudian1 | {} | 8 | 130048 | f | 62 | 115 |
 63 | 2021-10-13 22:50:34.797719-05 | 2021-10-13 22:50:34.79936-05 | cloudian2 | {} | 8 | 130048 | f | 62 | 116 |
(2 rows)

maasdb=#