Created attachment 1293601 [details]
logs from hypervisor and engine and db dump

Description of problem:
oVirt 4.2, 3.6 DC:
Had the master domain in status Unknown, it was the last domain in DC, so in order to clean the DC, I created an unattached domain and re-initialized successfully the DC using it. Then, I destroyed the domain that was Unknown and right after, the new master domain, which was active, moved to Unknown. The failure is on vdsm on startSpm with CurrentVersionTooAdvancedError:

2017-07-02 12:02:40,199+0300 DEBUG (tasks/4) [storage.SamplingMethod] Returning last result (misc:403)
2017-07-02 12:02:40,199+0300 ERROR (tasks/4) [storage.TaskManager.Task] (Task='a145513d-bc53-4af8-9984-03bae2854b8e') Unexpected error (task:870)
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", line 877, in _run
    return fn(*args, **kargs)
  File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", line 333, in run
    return self.cmd(*self.argslist, **self.argsdict)
  File "/usr/lib/python2.7/site-packages/vdsm/storage/sp.py", line 304, in startSpm
    expVer=expectedDomVersion)
CurrentVersionTooAdvancedError: Current domain `522e419a-ae04-4f52-be68-486795dc7c90` version is too advanced, expected `3` and found `4`: ''
2017-07-02 12:02:40,199+0300 DEBUG (tasks/4) [storage.TaskManager.Task] (Task='a145513d-bc53-4af8-9984-03bae2854b8e') Task._run: a145513d-bc53-4af8-9984-03bae2854b8e () {} failed - stopping
 task (task:889)


Version-Release number of selected component (if applicable):
vdsm-4.20.1-119.gitd6d2a1d.el7.centos.x86_64
ovirt-engine-4.2.0-0.0.master.20170627181935.git9424f9b.el7.centos.noarch
libvirt-3.2.0-14.el7.x86_64
qemu-kvm-ev-2.6.0-28.el7.10.1.x86_64
selinux-policy-3.13.1-164.el7.noarch
sanlock-3.5.0-1.el7.x86_64


How reproducible:
Encountered it twice in RHV automation after domain became Unkown during [1] execution.

[1] https://polarion.engineering.redhat.com/polarion/#/project/RHEVM3/workitem?id=RHEVM3-5300

Steps to Reproduce:
oVirt 4.2:
1. In 3.6 DC, have the last domain, which is master, in Unkown state
2. Create an unattached domain and re-initialize the DC using it
3. Destroy the Unknwon domain

Actual results:
The master domain, which was active, changed it state to Unknown. startSpm failed with the mentioned exception in vdsm.log


Engine.log:

2017-07-02 12:14:46,404+03 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.SpmStartVDSCommand] (DefaultQuartzScheduler3) [2e10eac2] Start SPM Task failed - result: 'cleanSuccess', message:
 VDSGenericException: VDSErrorException: Failed in vdscommand to HSMGetTaskStatusVDS, error = Current domain `522e419a-ae04-4f52-be68-486795dc7c90` version is too advanced, expected `3` and
 found `4`

Expected results:
startSpm should succeed.

Additional info:
logs from hypervisor and engine and db dump