Hi all,

    I am using the libvirt 4.9  version. I get the following error when I try to run the command virsh list after the system comes up

virsh list
error: failed to connect to the hypervisor
error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory

When I run the command ps -ef | grep libvirtd, to find whether the libvirtd process is running. I get the following message.

 ps -ef | grep libvirtd
root       418     1  0 06:33 ?        00:00:00 /usr/sbin/libvirtd --daemon --config /etc/libvirt/libvirtd.conf
root       420     1  0 06:33 ?        00:00:00 /usr/sbin/libvirtd --daemon --config /etc/libvirt/libvirtd.conf

After sometime, I see that the virsh list command goes through and the command ps -ef | grep libvirtd, gives the following putput

ps -ef | grep libvirtd
root       420     1  0 06:33 ?        00:00:00 /usr/sbin/libvirtd --daemon --config /etc/libvirt/libvirtd.conf
root       610   227  0 06:34 ttyS0    00:00:00 grep libvirtd
root@draco:~# virsh list
Id   Name   State 
--------------------

Following are the logs of journalctl -xe | grep libvirtd

-- Unit libvirtd.service has begun starting up.                                                   
Feb 04 06:32:01 draco libvirtd[388]: 2019-02-04 06:32:01.298+0000: 388: info : libvirt version: 4.9.0                                                                         
Feb 04 06:32:01 draco libvirtd[388]: 2019-02-04 06:32:01.298+0000: 388: info : hostname: draco      
Feb 04 06:32:01 draco libvirtd[388]: 2019-02-04 06:32:01.298+0000: 388: warning : virGetHostnameImpl:714 : getaddrinfo failed for 'draco': Temporary failure in name resolution
Feb 04 06:33:31 draco systemd[1]: libvirtd.service: Start operation timed out. Terminating.                                                                                   
Feb 04 06:33:31 draco systemd[1]: libvirtd.service: Failed with result 'timeout'.                                                                                             
-- Subject: Unit libvirtd.service has failed                                                        
-- Unit libvirtd.service has failed.                                                                
Feb 04 06:33:31 draco systemd[1]: libvirtd.service: Service hold-off time over, scheduling restart.                                                                           
Feb 04 06:33:31 draco systemd[1]: libvirtd.service: Scheduled restart job, restart counter is at 4.                                                                           
-- Automatic restarting of the unit libvirtd.service has been scheduled, as the result for                                                                                    
-- Subject: Unit libvirtd.service has finished shutting down                                      
-- Unit libvirtd.service has finished shutting down.                                                                                                                          
-- Subject: Unit libvirtd.service has begun start-up                                                
-- Unit libvirtd.service has begun starting up.                                                   
Feb 04 06:33:31 draco libvirtd[418]: 2019-02-04 06:33:31.799+0000: 418: info : libvirt version: 4.9.0                                                                         
Feb 04 06:33:31 draco libvirtd[418]: 2019-02-04 06:33:31.799+0000: 418: info : hostname: draco       [4 draco libvirtd[418]: 2019-02-04 06:33:31.799+0000: 418: warning : virGetHostnameImpl:714 : getaddrn
Feb 04 06:33:31 draco libvirtd[418]: 2019-02-04 06:33:31.799+0000: 418: warning : virGetHostnameImpl:714 : getaddrinfo failed for 'draco': Temporary failure in name resolution
-- Subject: Unit libvirtd.service has finished start-up                                                                                                                       
-- Unit libvirtd.service has finished starting up.                                                                                                                            
Feb 04 06:34:41 draco libvirtd[420]: 482: info : libvirt version: 4.9.0                             
Feb 04 06:34:41 draco libvirtd[420]: 482: info : hostname: draco                                    
Feb 04 06:34:41 draco libvirtd[420]: 482: error : virGetUserID:1041 : invalid argument: Failed to parse user 'tss'                                                            
Feb 04 06:34:41 draco libvirtd[420]: 482: error : virGetGroupID:1124 : invalid argument: Failed to parse group 'tss'                                                          
- msg 68/68 100%

It is found that the libvirt systemd service times out, and for some unkonwn reason the previous libvitrd process is not killed.

I dont see any errors in /var/log/messages or /var/log/syslog.

Could anyone please help?

Thanks

Sharath