Comment 4 for bug 1640671

I´m with same problem in version MaaS 2.4 with Openstack newton.

Jul 30 20:10:03 uat-l-srv-90 maas.node: [warn] teste-nework-1: Could not change the power state. No rack controllers can access the BMC.
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: 2018-07-30 20:10:03 maasserver.websockets.handlers.machine: [critical] Failed to update power state of machine.
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011Traceback (most recent call last):
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/internet/asyncioreactor.py", line 267, in run
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 self._asyncioEventloop.run_forever()
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/internet/asyncioreactor.py", line 290, in run
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 f(*args, **kwargs)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 500, in errback
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 self._startRunCallbacks(fail)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 567, in _startRunCallbacks
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 self._runCallbacks()
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011--- <exception caught here> ---
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 653, in _runCallbacks
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 current.result = callback(current.result, *args, **kw)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/maasserver/websockets/handlers/machine.py", line 862, in eb_unknown
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 failure.trap(UnknownPowerType, NotImplementedError)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/failure.py", line 359, in trap
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 self.raiseException()
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/failure.py", line 385, in raiseException
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 raise self.value.with_traceback(self.tb)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/threadpool.py", line 250, in inContext
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 result = inContext.theWork()
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/threadpool.py", line 266, in <lambda>
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 inContext.theWork = lambda: context.call(ctx, func, *args, **kw)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/context.py", line 122, in callWithContext
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 return self.currentContext().callWithContext(ctx, func, *args, **kw)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/context.py", line 85, in callWithContext
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 return func(*args,**kw)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 883, in callInContext
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 return func(*args, **kwargs)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 232, in wrapper
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 result = func(*args, **kwargs)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/maasserver/models/node.py", line 3719, in _get_bmc_client_connection_info
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011 raise PowerProblem(err_msg)
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011maasserver.exceptions.PowerProblem: No rack controllers can access the BMC of node: teste-nework-1
Jul 30 20:10:03 uat-l-srv-90 sh[1330]: #011
Jul 30 20:10:04 uat-l-srv-90 sh[1330]: 2018-07-30 20:10:04 regiond: [info] 10.254.4.12 GET /MAAS/rpc/ HTTP/1.1 --> 200 OK (referrer: -; agent: provisioningserver.rpc.clusterservice.ClusterClientService)
Jul 30 20:10:19 uat-l-srv-90 maas.node: [warn] teste-nework-1: Could not change the power state. No rack controllers can access the BMC.
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: 2018-07-30 20:10:19 maasserver.websockets.handlers.machine: [critical] Failed to update power state of machine.
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011Traceback (most recent call last):
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/internet/asyncioreactor.py", line 267, in run
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 self._asyncioEventloop.run_forever()
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/internet/asyncioreactor.py", line 290, in run
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 f(*args, **kwargs)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 500, in errback
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 self._startRunCallbacks(fail)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 567, in _startRunCallbacks
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 self._runCallbacks()
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011--- <exception caught here> ---
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 653, in _runCallbacks
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 current.result = callback(current.result, *args, **kw)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/maasserver/websockets/handlers/machine.py", line 862, in eb_unknown
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 failure.trap(UnknownPowerType, NotImplementedError)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/failure.py", line 359, in trap
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 self.raiseException()
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/failure.py", line 385, in raiseException
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 raise self.value.with_traceback(self.tb)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/threadpool.py", line 250, in inContext
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 result = inContext.theWork()
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/threadpool.py", line 266, in <lambda>
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 inContext.theWork = lambda: context.call(ctx, func, *args, **kw)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/context.py", line 122, in callWithContext
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 return self.currentContext().callWithContext(ctx, func, *args, **kw)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/twisted/python/context.py", line 85, in callWithContext
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 return func(*args,**kw)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 883, in callInContext
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 return func(*args, **kwargs)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 232, in wrapper
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 result = func(*args, **kwargs)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 File "/usr/lib/python3/dist-packages/maasserver/models/node.py", line 3719, in _get_bmc_client_connection_info
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011 raise PowerProblem(err_msg)
Jul 30 20:10:19 uat-l-srv-90 sh[1330]: #011maasserver.exceptions.PowerProblem: No rack controllers can access the BMC of node: teste-nework-1