Tnesorboard needs to have slash (/) on the end of URL

[hadim]

The plugin does not seem to work with Tensorboard.

Can you confirm ?

[hadim]

Might be fixed with #38

Will try and report here.

[betatim]

Do you have a repo that is setup with TensorBoard and works on mybinder.org? That would make it easier to debug. Apriori I can't think of a reason why it shouldn't work.

[hadim]

The PR does not fix it.

• Launch https://mybinder.org/v2/gh/hadim/binder-test/master?urlpath=lab
• Open a terminal.
• Execute tensorboard --logdir .
• Navigate to the proxy by adding proxy/6006 to the URL.

On binder, I got a 404 error. Bu locally the Tensorboard UI load and then stop (probably because of some 404 errors, see the screenshots for details).

[betatim]

As far as I can tell from your repo you don't activate the notebook server extension. The last bit of the README after the bit about using conda to install stuff.

[hadim]

My bad I forgot the enable the extension.

I tried to add the postBuild file but the extension does not seem to load... I must be missing something obvious: https://github.com/hadim/binder-test/blob/master/postBuid

[hadim]

My bad again postBuild filename was misspelt... I can now reproduce the issue: https://mybinder.org/v2/gh/hadim/binder-test/master?urlpath=lab

[betatim]

If I launch your binder and then visit https://hub.mybinder.org/user/hadim-binder-test-/proxy/6006 I see the output of tensorboard. I think this means it works?

Should we close this issue?

[hadim]

Yes, Tensoboard interface shows up but if you open your browser console, you'll see a lot of 404 errors. I think Tensorboard is using WebSocket or something else to communicate with the server and retrieve info.

To better illustrate the issue have added a notebook to the repo called TF_Example.ipynb: https://mybinder.org/v2/gh/hadim/binder-test/master?urlpath=lab

If you execute the notebook and then launch tensorboard --logdir=/tmp/tensorflow_logs in a terminal when you visit https://hub.mybinder.org/user/hadim-binder-test-/proxy/6006, you should see a message Failed to load the set of active dashboards.

Without the proxy and locally I see TF scalar values and the TF graph:

[betatim]

Thanks for the instructions. When I run it and look at the network requests being made I see lots of requests to https://hub.mybinder.org/user/hadim-binder-test-UNIQUE/proxy/data/runs which result in 404 errors. Not sure why tensor board cuts off the port number. Maybe it has a baseUrl configuration option or something like that?

If you manually try out https://hub.mybinder.org/user/hadim-binder-test-UNIQUE/proxy/6006/data/runs (with port) you get a JSON response. So I think this is something about configuring tensorboard.

[hadim]

Thank you @betatim. I think you got the cause of the issue correctly. Unfortunately after trying a bunch of --path_prefix, --base_url and --host options, I can't get it to work.

I'll open an issue on the TB repo.

Thanks for the help.

[hadim]

Easy fix: add a trailing slash at the end of the URL.

[betatim]

"Easy" :) Only took two people several hours to work out :-/

Thanks for making the examples for reproducing this and for figuring it out in the end!

I updated the title to try and make it so others with similar problems will find it, not just tensorboard users.