[openstack] libvirt error : Connection refused

증상

compute node에서 가상화 명령어(virsh)를 사용하면 error가 나온다..

virsh list --all
error: failed to connect to the hypervisor
error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': Connection refused

 

but

ps -ef | grep libvirt
root        1595       1  0  2022 ?        02:34:19 /usr/sbin/libvirtd -d -l #데몬은 정상작동중
root     2343317 2343230  0 07:04 pts/6    00:00:00 grep --color=auto libvirtd

trouble-shooting

지금 동작중인 데몬을 죽이고 재시작

kill -9 [libvirt_pid] #현재 작동중인 데몬 kill
systemctl start libvirtd # 다시 데몬 시작

 

Verify

데몬 작동중 확인 & 가상화 명령어(virsh)실행 > 잘됨ㅎ

ps -ef | grep libvirtd
root     2343475       1  2 07:05 ?        00:00:00 /usr/sbin/libvirtd -d -l
root     2343538 2343230  0 07:05 pts/6    00:00:00 grep --color=auto libvirtd

virsh list --all # virsh명령어 작동 확인
Id   Name                State
------------------------------------
 9    instance-00000901   running
 11   instance-00000919   running
 21   instance-00000971   running
 30   instance-00001235   running
 50   instance-0000140d   running
 -    instance-000013f7   shut off