[2.0rc2] maasserver.websockets.base.HandlerNoSuchMethodError: node_actions

[Andres Rodriguez]

I upgraded to MAAS RC2 from MAAS B3, and started seeing this after I selected to commission all my nodes. Basically, I upgraded, re-enlisted nodes, and commissioning them all (43). The result was:

2016-07-15 02:14:25 [HTTPChannel,303,192.168.10.1] Unhandled Error [0/1260]
        Traceback (most recent call last):
          File "/usr/lib/python3/dist-packages/twisted/python/log.py", line 101, in callWithLogger
            return callWithContext({"system": lp}, func, *args, **kw)
          File "/usr/lib/python3/dist-packages/twisted/python/log.py", line 84, in callWithContext
            return context.call({ILogContext: newCtx}, func, *args, **kw)
          File "/usr/lib/python3/dist-packages/twisted/python/context.py", line 118, in callWithContext
            return self.currentContext().callWithContext(ctx, func, *args, **kw)
          File "/usr/lib/python3/dist-packages/twisted/python/context.py", line 81, in callWithContext
            return func(*args,**kw)
        --- <exception caught here> ---
          File "/usr/lib/python3/dist-packages/twisted/internet/posixbase.py", line 597, in _doReadOrWrite
            why = selectable.doRead()
          File "/usr/lib/python3/dist-packages/twisted/internet/tcp.py", line 209, in doRead
            return self._dataReceived(data)
          File "/usr/lib/python3/dist-packages/twisted/internet/tcp.py", line 215, in _dataReceived
            rval = self.protocol.dataReceived(data)
          File "/usr/lib/python3/dist-packages/maasserver/websockets/websockets.py", line 432, in dataReceived
            self._parseFrames()
          File "/usr/lib/python3/dist-packages/maasserver/websockets/websockets.py", line 404, in _parseFrames
            self._receiver.frameReceived(opcode, data, fin)
          File "/usr/lib/python3/dist-packages/maasserver/websockets/websockets.py", line 487, in frameReceived
            self._wrappedProtocol.dataReceived(content)
          File "/usr/lib/python3/dist-packages/maasserver/websockets/protocol.py", line 225, in dataReceived
            self.processMessages()
          File "/usr/lib/python3/dist-packages/maasserver/websockets/protocol.py", line 249, in processMessages
            if self.handleRequest(message) is None:
          File "/usr/lib/python3/dist-packages/maasserver/websockets/protocol.py", line 283, in handleRequest
            d = handler.execute(method, message.get("params", {}))
          File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 140, in wrapper
            return func(*args, **kwargs)
          File "/usr/lib/python3/dist-packages/maasserver/websockets/base.py", line 322, in execute
            raise HandlerNoSuchMethodError(method_name)
        maasserver.websockets.base.HandlerNoSuchMethodError: node_actions

[Andres Rodriguez (andreserl)]

This apparently is a UI only issue where after the upgrade, the UI code tries to acccess node_actions, wchih is no longer there. a F5 or the UI auto released should fix this, but may not happen immediately.