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

Hi Christian, I think of a package similar like this: qemu-debuginfo.x86_64 2:2.1.3-10.fc21 That allows gdb to show information about backtrace symbols. See comment 12 of https://bugzilla.redhat.com/show_bug.cgi?id=1262251 Makes error search much simpler - especially if qemu hangs.

Markus ********************************** Von: Christian Hailer [christian(a)hailer.eu] Gesendet: Dienstag, 15. September 2015 21:24 An: Markus Stockhausen; 'Daniel Helgenberger' Cc: ydary(a)redhat.com; users(a)ovirt.org Betreff: AW: [ovirt-users] Some VMs in status "not responding" in oVirt interface 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@collogia.de] Gesendet: Dienstag, 15. September 2015 20:40 An: Daniel Helgenberger <daniel.helgenberger(a)m-box.de&gt; Cc: Christian Hailer <christian(a)hailer.eu>; ydary(a)redhat.com; users(a)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(a)m-box.de&gt;: 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 >