[VMware-dvs] Sometimes VMs became Error status on multiple VM deploy

[Vyacheslav Tabolin]

When user try to deploy multiple VMs (and even 1) some of them became Error state.

2015-11-05 14:42:40.338 30543 TRACE oslo_vmware.common.loopingcall File "/usr/lib/python2.7/dist-packages/oslo_vmware/common/loopingcall.py", line 76, in _inner
2015-11-05 14:42:40.338 30543 TRACE oslo_vmware.common.loopingcall self.f(*self.args, **self.kw)
2015-11-05 14:42:40.338 30543 TRACE oslo_vmware.common.loopingcall File "/usr/lib/python2.7/dist-packages/oslo_vmware/api.py", line 417, in _poll_task
2015-11-05 14:42:40.338 30543 TRACE oslo_vmware.common.loopingcall raise task_ex
2015-11-05 14:42:40.338 30543 TRACE oslo_vmware.common.loopingcall VMwareDriverException: Cannot complete operation due to concurrent modification by another operation.
2015-11-05 14:42:40.338 30543 TRACE oslo_vmware.common.loopingcall

exeption in _increase_ports_on_portgroup. Needs wraper.

[Andrzej Skupień (kendriu)]

Slava, i think you can do it by your self.