Created attachment 486882 [details]
vdsm source and destenation logs

Description of problem:

during scale testing, *failed migration of a vm to destination host that runs 90 vms, finish with split brain. 

* Failed migration - libvirt daemon was restarted during that operation on source host. 

Flow: 

- destination host runs 90 vms 
- call migrate on source - migration starts
- 5-10 seconds later - /etc/init.d/libivrtd restart 
- connection to libvirt is broken - vdsm takes it self down 
- on destination server, call destroy is initiated, but fails due to operation time-out, vm runs on destination server in paused state.
- on source server, vdsm performs vm recovery, and runs the vm. 

result: split brain. 

vdsClient -s 0 list table:

destination host:
4afaa2bb-d570-4ae4-964a-f19507ca786b  73182  FC-0-30              Paused*

source host:
4afaa2bb-d570-4ae4-964a-f19507ca786b  79552  FC-0-30              Up


Versions:
-vdsm-4.9-55.el6.x86_64
-libvirt-0.8.7-13.el6.x86_64

attached source and destination vdsm logs.