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From Andrei Mikhailovsky <>
Subject Re: KVM - No longer able to start virtual routers
Date Wed, 21 Oct 2015 11:23:13 GMT
A bit more digging revealed that the host server does receive the xml data with the virtual
router details: 

2015-10-21 12:04:58,457 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-1:null)
starting r-1407-VM: <domain type='kvm'> 
<description>Debian GNU/Linux 7(64-bit)</description> 
<clock offset='utc'> 



but there is no instance being created on the host server and the agent logs do not reveal
anything else apart from what i've provided in my previous email. 

Thanks for the help 


----- Original Message -----

From: "Andrei Mikhailovsky" <> 
Sent: Wednesday, 21 October, 2015 11:36:28 AM 
Subject: KVM - No longer able to start virtual routers 

Hello guys, 

I have recently upgraded from ACS 4.5.1 to 4.5.2. The upgrade went well as far as I can tell,
no error messages. As there was no need to update the systemvm templates, i've not bothered
to reboot the system vms and virtual routers. 

I am running Ubuntu 14.04 with KVM hosts and using nfs for secondary and ceph rbd for primary

Today i've tried to restart one of the networks with the clean up option and noticed that
the restart has failed. After a bit of poking around i've identified that ACS is no longer
able to create virtual routers. ACS just showing them with Starting status, but they are not
starting on the host server. I've looked at the host server, which is suppose to be starting
that virtual router and there is no sign of the domain being created. The host server has
the following entries in the agent.log file: 

2015-10-21 10:39:02,140 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-3:null)
Executing: /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/ -n r-1405-VM
-p %template=domP%name=r-1405-VM%eth2ip=XXX.XXX.XXX.53%eth2mask=

2015-10-21 10:39:02,172 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-3:null)
Exit value is 111 
2015-10-21 10:39:02,173 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-3:null)
ERROR: unable to connect to /var/lib/libvirt/qemu/r-1405-VM.agent - Connection refused 
2015-10-21 10:39:02,174 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-3:null)
passcmd failed:ERROR: unable to connect to /var/lib/libvirt/qemu/r-1405-VM.agent - Connection

I've checked ssvm and it seems to be running perfectly well. The /usr/local/cloud/systemvm/
script produces no warnings or errors, the nfs mount point is mounted and writable. 

I've also tried to create a new vm with a new network and that vm is not starting because
ACS is unable to start the virtual router for the network. 

Any idea how to get this issue resolved? 


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