[ovirt-users] Some VMs in status "not responding" in oVirt interface

Christian Hailer christian at hailer.eu
Tue Sep 15 19:24:17 UTC 2015


Hi Markus,

 

gdb is available on CentOS 7, but what do you mean by qemu-debug? I Installed qemu-kvm-tools, maybe this is the pendant for CentOS?

 

qemu-kvm-tools.x86_64 : KVM debugging and diagnostics tools

qemu-kvm-tools-ev.x86_64 : KVM debugging and diagnostics tools

qemu-kvm-tools-rhev.x86_64 : KVM debugging and diagnostics tools

 

Regards, Christian

 

Von: Markus Stockhausen [mailto:stockhausen at collogia.de] 
Gesendet: Dienstag, 15. September 2015 20:40
An: Daniel Helgenberger <daniel.helgenberger at m-box.de>
Cc: Christian Hailer <christian at hailer.eu>; ydary at redhat.com; users at ovirt.org
Betreff: Re: [ovirt-users] Some VMs in status "not responding" in oVirt interface

 

Do you have a chance to install qemu-debug? If yes I would try a backtrace.

gdb -p <qemu-pid>
# bt

Markus

Am 15.09.2015 4:15 nachm. schrieb Daniel Helgenberger <daniel.helgenberger at m-box.de <mailto:daniel.helgenberger at m-box.de> >:

Hello,

I do not want to hijack the thread but maybe my issue is related?

It might have started with ovirt 3.5.3; but I cannot tell for sure.

For me, one vm (foreman) is affected; the second time in 14 days. I can confirm this as I also loose any network connection to the VM and
the ability to connect a console.
Also, the only thing witch 'fixes' the issue is right now 'kill -9 <pid of qemu-kvm process>'

As far as I can tell the VM became unresponsive at around Sep 15 12:30:01; engine logged this at 12:34. Nothing obvious in VDSM logs (see
attached).

Below the engine.log part.

Versions:
ovirt-engine-3.5.4.2-1.el7.centos.noarch

vdsm-4.16.26-0.el7.centos
libvirt-1.2.8-16.el7_1.3

engine.log (1200 - 1300:
2015-09-15 12:03:47,949 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-56) [264d502a] HA
reservation status for cluster Default is OK
2015-09-15 12:08:02,708 INFO  [org.ovirt.engine.core.bll.OvfDataUpdater] (DefaultQuartzScheduler_Worker-89) [2e7bf56e] Attempting to update
VMs/Templates Ovf.
2015-09-15 12:08:02,709 INFO  [org.ovirt.engine.core.bll.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler_Worker-89)
[5e9f4ba6] Running command: ProcessOvfUpdateForStoragePoolCommand internal: true. Entities affected :  ID:
00000002-0002-0002-0002-000000000088 Type: l
2015-09-15 12:08:02,780 INFO  [org.ovirt.engine.core.bll.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler_Worker-89)
[5e9f4ba6] Lock freed to object EngineLock [exclusiveLocks= key: 00000002-0002-0002-0002-000000000088 value: OVF_UPDATE
2015-09-15 12:08:47,997 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-21) [3fc854a2] HA
reservation status for cluster Default is OK
2015-09-15 12:13:06,998 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.GetFileStatsVDSCommand] (org.ovirt.thread.pool-8-thread-48)
[50221cdc] START, GetFileStatsVDSCommand( storagePoolId = 00000002-0002-0002-0002-000000000088, ignoreFailoverLimit = false), log id: 1503968
2015-09-15 12:13:07,137 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.GetFileStatsVDSCommand] (org.ovirt.thread.pool-8-thread-48)
[50221cdc] FINISH, GetFileStatsVDSCommand, return: {pfSense-2.0-RELEASE-i386.iso={status=0, ctime=1432286887.0, size=115709952},
Fedora-15-i686-Live8
2015-09-15 12:13:07,178 INFO  [org.ovirt.engine.core.bll.IsoDomainListSyncronizer] (org.ovirt.thread.pool-8-thread-48) [50221cdc] Finished
automatic refresh process for ISO file type with success, for storage domain id 84dcb2fc-fb63-442f-aa77-3e84dc7d5a72.
2015-09-15 12:13:48,043 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-87) [4fa1bb16] HA
reservation status for cluster Default is OK
2015-09-15 12:18:48,088 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-44) [6345e698] HA
reservation status for cluster Default is OK
2015-09-15 12:23:48,137 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-13) HA reservation
status for cluster Default is OK
2015-09-15 12:28:48,183 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-76) [154c91d5] HA
reservation status for cluster Default is OK
2015-09-15 12:33:48,229 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-36) [27c73ac6] HA
reservation status for cluster Default is OK
2015-09-15 12:34:49,432 INFO  [org.ovirt.engine.core.vdsbroker.VdsUpdateRunTimeInfo] (DefaultQuartzScheduler_Worker-41) [5f2a4b68] VM
foreman 8b57ff1d-2800-48ad-b267-fd8e9e2f6fb2 moved from Up --> NotResponding
2015-09-15 12:34:49,578 WARN  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-41)
[5f2a4b68] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: VM foreman is not responding.
2015-09-15 12:38:48,273 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-10) [7a800766] HA
reservation status for cluster Default is OK
2015-09-15 12:43:48,320 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-42) [440f1c40] HA
reservation status for cluster Default is OK
2015-09-15 12:48:48,366 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-70) HA reservation
status for cluster Default is OK
2015-09-15 12:53:48,412 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-12) [50221cdc] HA
reservation status for cluster Default is OK
2015-09-15 12:58:48,459 INFO  [org.ovirt.engine.core.bll.scheduling.HaReservationHandling] (DefaultQuartzScheduler_Worker-3) HA reservation
status for cluster Default is OK



On 29.08.2015 22:48, Christian Hailer wrote:
> Hello,
> 
> last Wednesday I wanted to update my oVirt 3.5 hypervisor. It is a single Centos 
> 7 server, so I started by suspending the VMs in order to set the oVirt engine 
> host to maintenance mode. During the process of suspending the VMs the server 
> crashed, kernel panic…
> 
> After restarting the server I installed the updates via yum an restarted the 
> server again. Afterwards, all the VMs could be started again. Some hours later 
> my monitoring system registered some unresponsive hosts, I had a look in the 
> oVirt interface, 3 of the VMs were in the state “not responding”, marked by a 
> question mark.
> 
> I tried to shut down the VMs, but oVirt wasn’t able to do so. I tried to reset 
> the status in the database with the sql statement
> 
> update vm_dynamic set status = 0 where vm_guid = (select vm_guid from vm_static 
> where vm_name = 'MYVMNAME');
> 
> but that didn’t help, either. Only rebooting the whole hypervisor helped… 
> afterwards everything worked again. But only for a few hours, then one of the 
> VMs entered the “not responding” state again… again only a reboot helped. 
> Yesterday it happened again:
> 
> 2015-08-28 17:44:22,664 INFO  
> [org.ovirt.engine.core.vdsbroker.VdsUpdateRunTimeInfo] 
> (DefaultQuartzScheduler_Worker-60) [4ef90b12] VM DC 
> 0f3d1f06-e516-48ce-aa6f-7273c33d3491 moved from Up --> NotResponding
> 
> 2015-08-28 17:44:22,692 WARN  
> [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
> (DefaultQuartzScheduler_Worker-60) [4ef90b12] Correlation ID: null, Call Stack: 
> null, Custom Event ID: -1, Message: VM DC is not responding.
> 
> Does anybody know what I can do? Where should I have a look? Hints are greatly 
> appreciated!
> 
> Thanks,
> 
> Christian
> 

-- 
Daniel Helgenberger
m box bewegtbild GmbH

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