Re: [ovirt-users] Migrate machines in unknown state?

El 04/08/16 a las 15:25, Arik Hadas escribió: > > ----- Original Message ----- > >> El 2016-08-04 08:24, Arik Hadas escribió: >> >>> ----- Original Message ----- >>> >>>> >>>> El 04/08/16 a las 07:18, Arik Hadas escribió: >>>> >>>>> ----- Original Message ----- >>>>> >>>>>> Hi, >>>>>> >>>>>> We're running oVirt 4.0.1 and today I found out that one of our hosts >>>>>> has all its VMs in an unknown state. I actually don't know how (and >>>>>> when) did this happen, but I'd like to restore service possibly >>>>>> without >>>>>> turning off these machines. The host is up, the VMs are up, 'qemu' >>>>>> process exists, no errors, it's just the VMs running on it that have >>>>>> a >>>>>> '?' where status is defined. >>>>>> >>>>>> Is it safe in this case to simply modify database and set those VM's >>>>>> status to 'up'? I remember having to do this a time ago when we faced >>>>>> storage issues, it didn't break anything back then. If not, is there >>>>>> a >>>>>> "safe" way to migrate those VMs to a different host and restart the >>>>>> host >>>>>> that marked them as unknown? >>>>>> >>>>> Hi Nicolás, >>>>> >>>>> I assume that the host these VMs are running on is empty in the >>>>> webadmin, >>>>> right? if that is the case then you've probably hit [1]. Changing >>>>> their >>>>> status to up is not the way to go since these VMs will not be >>>>> monitored. >>>>> >>>> Hi Arik, >>>> >>>> By "empty" you mean the webadmin reports the host being running 0 VMs? >>>> If so, that's not the case, actually the VM count seems to be correct >>>> in >>>> relation to "qemu-*" processes (about 32 VMs), I can even see the >>>> machines in the "Virtual machines" tab of the host, it's just they are >>>> all marked with the '?' mark. >>>> >>> No, I meant the 'Host' column in the Virtual Machines tab but if you >>> see >>> the VMs in the "Virtual machines" sub-tab of the host then run_on_vds >>> points to the right host.. >>> >>> The host is up in the webadmin as well? >>> Can you share the engine log? >>> >>> Yes, the host is up in the webadmin, there are no issues with it, just >> the VMs running on it have the '?' mark. I've made 3 tests: >> >> 1) Restart engine: did not help >> 2) Check firewall, seems to be ok. >> 2) PostgreSQL: UPDATE vm_dynamic SET status = 1 WHERE status = 8; : >> After a while, I see lots of entries like this: >> >> 2016-08-04 09:23:10,910 WARN >> [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] >> (DefaultQuartzScheduler4) [6ad135b8] Correlation ID: null, Call Stack: >> null, Custom Event ID: -1, Message: VM xxx is not responding. >> >> I'm attaching the engine log, but I don't know when did this happen for >> the first time, though. If there's a manual way/command to migrate VMs >> to a different host I'd appreciate a hint about it. >> >> Is it safe to restart vdsmd on this host? >> > The engine log looks fine - the VMs are reported as not-responding for > some reason. I would restart libvirtd and vdsmd then > Is restarting those two daemons safe? I mean, will that stop all qemu-* processes, so the VMs marked as unknown will stop?

Thanks. >> >> Thanks. >>>> >>>> Yes, there is no other way to resolve it other than changing the DB but >>>>> the change should be to update run_on_vds field of these VMs to the >>>>> host >>>>> you know they are running on. Their status will then be updates in 15 >>>>> sec. >>>>> >>>>> [1] https://bugzilla.redhat.com/show_bug.cgi?id=1354494 >>>>> >>>>> Arik. >>>>> >>>>> Thanks. >>>>>> >>>>>> Nicolás >>>>>> >>>>>> _______________________________________________ >>>>>> Users mailing list >>>>>> Users(a)ovirt.org >>>>>> http://lists.ovirt.org/mailman/listinfo/users >>>>>> >>>>>> >>>> _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users