[ovirt-users] Host in error state

knarra knarra at redhat.com
Tue Oct 25 07:02:39 UTC 2016

Hi All,

     I am currently using ovirt master branch, having hosted-engine 
setup with glusterfs as the storage domain. I launched some vms and try 
to start them. VMs fails to start on two other hosts in the cluster and 
both of them go into error state. why does the hosts go into error state ?

     I see the following error in the vdsm logs on why the vm start 
process fails.

2016-10-25 12:13:37,320 ERROR   (Thread-301489) [virt.vm] 
vmId=`0b84e276-3375-46e8-8f5f-3e0ccee82f95`::The vm start process failed 
Traceback (most recent call last):
   File "/usr/share/vdsm/virt/vm.py", line 523, in _startUnderlyingVm
   File "/usr/share/vdsm/virt/vm.py", line 1855, in _run
     domxml = hooks.before_vm_start(self._buildDomainXML(),
   File "/usr/share/vdsm/virt/vm.py", line 1555, in _buildDomainXML
   File "/usr/share/vdsm/virt/vm.py", line 1502, in _appendDevices
     deviceXML = dev.getXML().toxml(encoding='utf-8')
   File "/usr/share/vdsm/virt/vmdevices/storage.py", line 422, in getXML
   File "/usr/share/vdsm/virt/vmdevices/storage.py", line 491, in _validate
     raise ValueError("Network disk without hosts")
ValueError: Network disk without hosts

     seeing following error in the events tab "Host hosted_engine2 will 
be switched to Error status for 30 minutes because it failed to run a VM."

     seeing following error in the engine logs.

2016-10-25 06:44:36,912 INFO 
(org.ovirt.thread.pool-6-thread-1) [20bafb6a] START, 
  = hosted_engine2, FailedToRunVmVDSCommandParameters:{runAsync='true', 
hostId='fcf264de-6f03-4835-8c26-6927417d848b'}), log id: 5b369412
2016-10-25 06:44:36,920 INFO 
(org.ovirt.thread.pool-6-thread-1) [20bafb6a] START, 
SetVdsStatusVDSCommand(HostName =
  hosted_engine2, SetVdsStatusVDSCommandParameters:{runAsync='true', 
hostId='fcf264de-6f03-4835-8c26-6927417d848b', status='Error', 
nonOperationalReason='NONE', stopSpmFailur
eLogged='false', maintenanceReason='null'}), log id: 3ae9ae50
2016-10-25 06:44:36,927 INFO 
(org.ovirt.thread.pool-6-thread-1) [20bafb6a] FINISH, 
SetVdsStatusVDSCommand, log id:
2016-10-25 06:44:36,934 ERROR 
(org.ovirt.thread.pool-6-thread-1) [20bafb6a] Correlation ID: null, Call
  Stack: null, Custom Event ID: -1, Message: Host hosted_engine2 will be 
switched to Error status for 30 minutes because it failed to run a VM.
2016-10-25 06:44:36,934 INFO 
(org.ovirt.thread.pool-6-thread-1) [20bafb6a] Vds 'hosted_engine2' moved 
to Error mode after 3 att
empts. Time: Tue Oct 25 06:44:36 UTC 2016
2016-10-25 06:44:36,934 INFO 
(org.ovirt.thread.pool-6-thread-1) [20bafb6a] FINISH, 
FailedToRunVmVDSCommand, log id
: 5b369412



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