Server Connection is lost

User 3843 | 3/22/2016, 3:52:27 PM

Dear All,

After doing a prediction, target= train['TARGET'] prediction = fit02.predict(train)

The connection to the server is lost...due to no exception catching. How can I get the connection back without re-launching the whole ?

Thanks

Here,the error:

""") ERROR:tornado.general:Uncaught exception, closing connection. Traceback (most recent call last): File "D:_devs\Python01\Anaconda2\envs\dato-env\lib\site-packages\zmq\eventloop\zmqstream.py", line 407, in runcallback callback(*args, kwargs) File "D:_devs\Python01\Anaconda2\envs\dato-env\lib\site-packages\tornado\stackcontext.py", line 275, in nullwrapper return fn(*args, kwargs) File "D:_devs\Python01\Anaconda2\envs\dato-env\lib\site-packages\IPython\kernel\threaded.py", line 88, in handlerecv msg = self.session.deserialize(smsg) File "D:_devs\Python01\Anaconda2\envs\dato-env\lib\site-packages\IPython\kernel\zmq\session.py", line 836, in deserialize raise ValueError("Invalid Signature: %r" % signature) ValueError: Invalid Signature: '<IDS|MSG>' ERROR:tornado.general:Uncaught exception, closing connection. Traceback (most recent call last):

Comments

User 2156 | 3/24/2016, 7:58:13 PM

Hi brookm297,

It looks like a jupyter bug:

https://github.com/jupyter/jupyterclient/blob/d68f79d3f998313a633bdb3d3b340a6035500cb0/jupyterclient/session.py#L859

Jupyter has issues while checking HMAC digest


User 3843 | 3/24/2016, 10:55:00 PM

Hello,

Do you have a workaround to relaunch connection to the server ? Because after this message from zMQ, I cannot see anymore the output in IPython Notebook.

How can I see again the output in IPython notebook ?

Thanks very much Kind regards


User 3843 | 4/4/2016, 8:10:28 PM

It seems that we lose connection with ZMQ quite often when using Graphlab in Windows...

We cannot see anymore the results in IPython.

Is there to reconnect with the server ?