Error detaching VM NIC: Could not detach NIC

Community Support Network
1

Hi,

I can attach NIC to VM (kvm) on the fly, but when I try to detach it the following error messages are appeared:

Wed Mar 13 18:14:45 2019 [Z0][VMM][I]: Command execution fail: cat << EOT | /var/tmp/one/vmm/kvm/detach_nic 'one-5' '02:00:ac:80:0e:14' 5 one-kvm-node-01-int
Wed Mar 13 18:14:45 2019 [Z0][VMM][E]: Could not detach NIC (02:00:ac:80:0e:14) from one-5
Wed Mar 13 18:14:45 2019 [Z0][VMM][I]: ExitCode: 255
Wed Mar 13 18:14:45 2019 [Z0][VMM][I]: Failed to execute virtualization driver operation: detach_nic.
Wed Mar 13 18:14:45 2019 [Z0][VMM][E]: Error detaching VM NIC: Could not detach NIC (02:00:ac:80:0e:14) from one-5

Node is a KVM host on the CentOS 7.
VN_MAD : bridge
The VM has been created from the ’ ttylinux - kvm ’ template.
Also I have issues with powering off the VM:
Poweroff:

Thu Mar 14 09:54:26 2019 [Z0][VMM][I]: Command execution fail: cat << EOT | /var/tmp/one/vmm/kvm/shutdown ‘one-6’ ‘one-kvm-node-01-int’ 6 one-kvm-node-01-int
Thu Mar 14 09:54:26 2019 [Z0][VMM][E]: Timed out shutting down one-6
Thu Mar 14 09:54:26 2019 [Z0][VMM][I]: ExitCode: 255
Thu Mar 14 09:54:26 2019 [Z0][VMM][I]: Failed to execute virtualization driver operation: shutdown.
Thu Mar 14 09:54:26 2019 [Z0][VMM][E]: Error shutting down VM: Timed out shutting down one-6

Poweroff hard:

Thu Mar 14 10:05:41 2019 [Z0][VM][I]: New LCM state is SHUTDOWN_POWEROFF
Thu Mar 14 10:05:41 2019 [Z0][VMM][I]: ExitCode: 0
Thu Mar 14 10:05:41 2019 [Z0][VMM][I]: Successfully execute virtualization driver operation: cancel.

VM stuck in the LCM State SHUTDOWN_POWEROFF.

Could you help to solve these issues?

brg,
Serhiy.

2

Okay, I’ve solved ‘poweroff -h’ issue with Recover → Success.
And NIC has been successfully removed within VM STATE : POWEROFF

Thu Mar 14 10:25:45 2019 [Z0][VM][I]: New state is POWEROFF
Thu Mar 14 10:25:45 2019 [Z0][VM][I]: New LCM state is LCM_INIT
Thu Mar 14 10:29:50 2019 [Z0][DiM][I]: VM NIC Successfully detached.

So this means that I can not detach NIC on the fly, is it correct?