Failed to start proxy

[mattwg]

sudo jupyterhub give me:

[I 13:37:56.187 JupyterHubApp] Not using whitelist. Any authenticated user will be allowed.
[I 13:37:56.199 JupyterHubApp] Starting proxy: [u'configurable-http-proxy', '--ip', u'', '--port', '8000', '--api-ip', u'localhost', '--api-port', '8001', '--default-target', 'http://localhost:8081']
[C 13:37:56.206 JupyterHubApp] Failed to start proxy
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/jupyterhub/app.py", line 704, in start
IOLoop().run_sync(self.start_proxy)
File "/usr/local/lib/python2.7/dist-packages/tornado/ioloop.py", line 418, in run_sync
return future_cell[0].result()
File "/usr/local/lib/python2.7/dist-packages/tornado/concurrent.py", line 109, in result
raise_exc_info(self._exc_info)
File "/usr/local/lib/python2.7/dist-packages/tornado/gen.py", line 175, in wrapper
yielded = next(result)
File "/usr/local/lib/python2.7/dist-packages/jupyterhub/app.py", line 524, in start_proxy
self.proxy_process = Popen(cmd, env=env)
File "/usr/lib/python2.7/subprocess.py", line 710, in init
errread, errwrite)
File "/usr/lib/python2.7/subprocess.py", line 1327, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory

Any ideas? What info can I share to help narrow this down?

Thanks,
Matt

[minrk]

Looks like you don't have configurable-http-proxy How did you install it? What do you get from which -a configurable-http-proxy?

[mattwg]

Got the server to launch now - I was missing configurable-http-proxy there was an error at top of npm output that I missed.

Now I get to login screen and get an error:

Traceback (most recent call last):
File "/usr/local/bin/jupyterhub-singleuser", line 3, in
from jupyterhub.singleuserapp import main
File "/usr/local/lib/python2.7/dist-packages/jupyterhub/singleuserapp.py", line 16, in
from IPython.html.notebookapp import NotebookApp
File "/usr/local/lib/python2.7/dist-packages/IPython/html/notebookapp.py", line 40, in
check_for_zmq('2.1.11', 'IPython.html')
File "/usr/local/lib/python2.7/dist-packages/IPython/utils/zmqrelated.py", line 37, in check_for_zmq
raise ImportError("%s requires pyzmq >= %s"%(required_by, minimum_version))
ImportError: IPython.html requires pyzmq >= 2.1.11

[dsblank]

Did you install ipython with "pip install . -U"? I would have thought that
would have installed all dependencies, including pyzmq, and the lower libs.

In any event, "sudo pip install pyzmq" should install it.

On Mon, Oct 20, 2014 at 2:50 PM, mattwg notifications@github.com wrote:

Got the server to launch now - I was missing configurable-http-proxy there
was an error at top of npm output that I missed.

Now I get to login screen and get an error:

Traceback (most recent call last):
File "/usr/local/bin/jupyterhub-singleuser", line 3, in
from jupyterhub.singleuserapp import main
File "/usr/local/lib/python2.7/dist-packages/jupyterhub/singleuserapp.py",
line 16, in
from IPython.html.notebookapp import NotebookApp
File "/usr/local/lib/python2.7/dist-packages/IPython/html/notebookapp.py",
line 40, in
check_for_zmq('2.1.11', 'IPython.html')
File "/usr/local/lib/python2.7/dist-packages/IPython/utils/zmqrelated.py",
line 37, in check_for_zmq
raise ImportError("%s requires pyzmq >= %s"%(required_by, minimum_version))
ImportError: IPython.html requires pyzmq >= 2.1.11

—
Reply to this email directly or view it on GitHub
#69 (comment).

[mattwg]

Let me start with a fresh instance - and run from top taking notes! I did not install with pip install . -U. I presume you mean when I install jupyterhub? Or do I have to also install ipython?

[dsblank]

Yes, you need ipython too.

On Mon, Oct 20, 2014 at 3:05 PM, mattwg notifications@github.com wrote:

Let me start with a fresh instance - and run from top taking notes! I did
not install with pip install . -U. I presume you mean when I install
jupyterhub? Or do I have to also install ipython?

—
Reply to this email directly or view it on GitHub
#69 (comment).

[mattwg]

Thanks @dsblank - here is the process I followed to successfully launch jupyterhub on a clean Ubunto 14.04 server:

sudo apt-get install git
sudo apt-get install npm
sudo apt-get install python-pip
sudo apt-get install python-dev
git clone https://github.com/jupyter/configurable-http-proxy.git
cd configurable-http-proxy
sudo npm install -g
sudo npm install -g bower less
sudo apt-get install nodejs-legacy
easy_install ipython[zmq,test]
git clone https://github.com/jupyter/jupyterhub.git
cd jupyterhub
sudo pip install .

I can then start jupyterhub and login to the server.
Thanks for your help!
Matt