Test failed: basic_sanity.snapshots_merge

ovirtlago.testlib: ERROR: Unhandled exception in <function <lambda> at 0x39ddcf8>
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/ovirtlago/testlib.py", line 217, in assert_equals_within
    res = func()
  File "/home/jenkins/workspace/test-repo_ovirt_experimental_master/ovirt-system-tests/basic-suite-master/test-scenarios/004_basic_sanity.py", line 417, in <lambda>
    lambda: len(api.vms.get(VM0_NAME).snapshots.list()) == 2,
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/brokers.py", line 34602, in list
    headers={"All-Content":all_content}
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 46, in get
    return self.request(method='GET', url=url, headers=headers, cls=cls)
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 122, in request
    persistent_auth=self.__persistent_auth
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/connectionspool.py", line 79, in do_request
    persistent_auth)
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/connectionspool.py", line 162, in __do_request
    raise errors.RequestError(response_code, response_reason, response_body)
RequestError: 
status: 404
reason: Not Found
detail: Entity not found: null

  File "/usr/lib64/python2.7/unittest/case.py", line 369, in run
    testMethod()
  File "/usr/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/usr/lib/python2.7/site-packages/ovirtlago/testlib.py", line 129, in wrapped_test
    test()
  File "/usr/lib/python2.7/site-packages/ovirtlago/testlib.py", line 59, in wrapper
    return func(get_test_prefix(), *args, **kwargs)
  File "/usr/lib/python2.7/site-packages/ovirtlago/testlib.py", line 68, in wrapper
    return func(prefix.virt_env.engine_vm().get_api(), *args, **kwargs)
  File "/home/jenkins/workspace/test-repo_ovirt_experimental_master/ovirt-system-tests/basic-suite-master/test-scenarios/004_basic_sanity.py", line 445, in snapshots_merge
    vt.join_all()
  File "/usr/lib/python2.7/site-packages/lago/utils.py", line 57, in _ret_via_queue
    queue.put({'return': func()})
  File "/home/jenkins/workspace/test-repo_ovirt_experimental_master/ovirt-system-tests/basic-suite-master/test-scenarios/004_basic_sanity.py", line 417, in snapshot_live_merge
    lambda: len(api.vms.get(VM0_NAME).snapshots.list()) == 2,
  File "/usr/lib/python2.7/site-packages/ovirtlago/testlib.py", line 264, in assert_true_within_long
    assert_equals_within_long(func, True, allowed_exceptions)
  File "/usr/lib/python2.7/site-packages/ovirtlago/testlib.py", line 251, in assert_equals_within_long
    func, value, LONG_TIMEOUT, allowed_exceptions=allowed_exceptions
  File "/usr/lib/python2.7/site-packages/ovirtlago/testlib.py", line 217, in assert_equals_within
    res = func()
  File "/home/jenkins/workspace/test-repo_ovirt_experimental_master/ovirt-system-tests/basic-suite-master/test-scenarios/004_basic_sanity.py", line 417, in <lambda>
    lambda: len(api.vms.get(VM0_NAME).snapshots.list()) == 2,
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/brokers.py", line 34602, in list
    headers={"All-Content":all_content}
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 46, in get
    return self.request(method='GET', url=url, headers=headers, cls=cls)
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 122, in request
    persistent_auth=self.__persistent_auth
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/connectionspool.py", line 79, in do_request
    persistent_auth)
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/connectionspool.py", line 162, in __do_request
    raise errors.RequestError(response_code, response_reason, response_body)

status: 404
reason: Not Found
detail: Entity not found: null