As a user, I want to to publish pixieapps so that I can use them as web dashboard on pixiegateway

[swapatGithub]

Expected behavior

I am publishing a simple pixieapp on pixiegateaway and it shows successful notification from jupyter notebook after I submit. It is expected to open that pixieapp from pixiegateaway when I start the server using below command
~/.local/bin/jupyter pixiegateway --port 8080 --ip server-ip-address

Actual behavior

I get below error message when I click on published pixieapp

Unexpected error:
Traceback (most recent call last):
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/web.py", line 1512, in _execute
result = yield result
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1055, in run
value = future.result()
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/concurrent.py", line 238, in result
raise_exc_info(self._exc_info)
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1063, in run
yielded = self.gen.throw(*exc_info)
File "/users/user-id/.conda/envs/my_env/lib/python2.7/site-packages/pixiegateway/handlers.py", line 161, in get
managed_client = yield self.session.get_managed_client(self, pixieapp_def, True)
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1055, in run
value = future.result()
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/concurrent.py", line 238, in result
raise_exc_info(self._exc_info)
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1063, in run
yielded = self.gen.throw(*exc_info)
File "/users/user-id/.conda/envs/my_env/lib/python2.7/site-packages/pixiegateway/session.py", line 111, in get_managed_client
raise gen.Return((yield self.get_managed_client_by_run_id(run_id, pixieapp_def, retry)))
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1055, in run
value = future.result()
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/concurrent.py", line 238, in result
raise_exc_info(self._exc_info)
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1063, in run
yielded = self.gen.throw(*exc_info)
File "/users/user-id/.conda/envs/my_env/lib/python2.7/site-packages/pixiegateway/session.py", line 118, in get_managed_client_by_run_id
managed_client = yield ManagedClientPool.instance().get(pixieapp_def)
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1055, in run
value = future.result()
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/concurrent.py", line 238, in result
raise_exc_info(self._exc_info)
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1063, in run
yielded = self.gen.throw(*exc_info)
File "/users/user-id/.conda/envs/my_env/lib/python2.7/site-packages/pixiegateway/managedClient.py", line 332, in get
yield client.start()
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1055, in run
value = future.result()
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/concurrent.py", line 238, in result
raise_exc_info(self._exc_info)
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1063, in run
yielded = self.gen.throw(*exc_info)
File "/users/user-id/.conda/envs/my_env/lib/python2.7/site-packages/pixiegateway/managedClient.py", line 79, in start
on_failure=on_failure
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1055, in run
value = future.result()
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/concurrent.py", line 238, in result
raise_exc_info(self._exc_info)
File "/users/user-id/.local/lib/python2.7/site-packages/tornado/gen.py", line 1069, in run
yielded = self.gen.send(value)
File "/users/user-id/.conda/envs/my_env/lib/python2.7/site-packages/pixiegateway/kernel/local.py", line 50, in start_kernel
raise
TypeError: exceptions must be old-style classes or derived from BaseException, not NoneType

Steps to reproduce the behavior

Following the tutorial in pixiedust documentation, I created HelloWorldPixieAppWithData pixieapp which runs fine in jupyter notebook but doesn't run/open in pixiegateaway.

[DTAIEB]

@swapatGithub I recently published version 0.6 of PixieGateway which should solve this issue. Can you please install it and verify that your issue is fixed.
Thanks

[swapatGithub]

@DTAIEB Thank you for the response.
I installed version 0.6 of Pixiegateway and was trying to open the pixiegateway server UI, but it gave me error saying /template/login.html is not available in pixiegateway package. I compared the 0.5 and 0.6 versions and I see that all the html pages in "/pixiegateway/template/" folder in version 0.5 are not there in version 0.6.
Regards,
Swapnil

[DTAIEB]

@swapatGithub you're right, there were some missing static file in the dist files. I've fixed the problem and published version 0.8 on PyPi. I also tested it with this version and it seems ok now.
Can you please give it another try.
Thanks

[swapatGithub]

@DTAIEB Thanks, that works now. But I am still facing the original error when I try to open the deployed pixieapp. I am getting the exact same error which I have copied in my first comment.
Regards,
Swapnil Pawar

[DTAIEB]

@swapatGithub ok, I noticed in the exception stacktrace that you are using Python 2.7. Could you try with Python 3.x? Also, can you post the PixieApp code you're using so I can reproduce?
Thanks

[swapatGithub]

@DTAIEB It works now with Python 3.4. I created very simple pixie app with two buttons in Python 3.4 and it did open on pixiegateway server. I'll continue to explore more functionalities of pixiedust now.
Thanks a lot for your help, really appreciate it.

[anna-knez]

Hi @DTAIEB ,

Sorry for bothering you.
I am trying to do the same thing: my simple HelloWorldPixieApp published successfully with Pixiedust 1.1.11, Tornado 4.5.3 and Python 3.6. However, when I try to click through and open the said app on the server I get:

Traceback (most recent call last):
File "/opt/conda/lib/python3.6/site-packages/tornado/web.py", line 1592, in _execute
result = yield result
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 1141, in run
yielded = self.gen.throw(*exc_info)
File "/opt/conda/lib/python3.6/site-packages/pixiegateway/handlers/handlers.py", line 102, in get
managed_client = yield self.session.get_managed_client(self, pixieapp_def, True)
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 1141, in run
yielded = self.gen.throw(*exc_info)
File "/opt/conda/lib/python3.6/site-packages/pixiegateway/session.py", line 111, in get_managed_client
raise gen.Return((yield self.get_managed_client_by_run_id(run_id, pixieapp_def, retry)))
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 1141, in run
yielded = self.gen.throw(*exc_info)
File "/opt/conda/lib/python3.6/site-packages/pixiegateway/session.py", line 118, in get_managed_client_by_run_id
managed_client = yield ManagedClientPool.instance().get(pixieapp_def)
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 326, in wrapper
yielded = next(result)
File "/opt/conda/lib/python3.6/site-packages/pixiegateway/managedClient.py", line 340, in get
clients = list(filter(lambda mc: mc.run_stats["kernel_name"] == kernel_name, self.managed_clients))
File "/opt/conda/lib/python3.6/site-packages/pixiegateway/managedClient.py", line 340, in
clients = list(filter(lambda mc: mc.run_stats["kernel_name"] == kernel_name, self.managed_clients))
KeyError: 'kernel_name'

I've also managed to create this error with python 2.7, after which I moved to 3.6 after reading here that PixieDust may not work properly with Python2.X

Thank you very much.

Anna

[romwhyte]

Hello @DTAIEB,

I am also trying to do the same thing: my simple HelloWorldPixieApp works perfectly in jupyter and published successfully to the pixiedustgateway, however, any application that uses pd_app will have this error message

Traceback (most recent call last):
File "/opt/conda/lib/python3.6/site-packages/tornado/web.py", line 1592, in _execute
result = yield result
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 1141, in run
yielded = self.gen.throw(*exc_info)
File "/opt/conda/lib/python3.6/site-packages/pixiegateway/handlers/handlers.py", line 70, in post
managed_client = yield self.session.get_managed_client_by_run_id(run_id)
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/opt/conda/lib/python3.6/site-packages/tornado/gen.py", line 326, in wrapper
yielded = next(result)
File "/opt/conda/lib/python3.6/site-packages/pixiegateway/session.py", line 127, in get_managed_client_by_run_id
raise Exception("Invalid run_id: {} - {}".format(run_id, pixieapp_def))
Exception: Invalid run_id: 1e80f97c-6cce-455c-beaf-380b87a89a6b - None