# \#question

**URL:** https://discourse.jupyter.org/tag/question/32.md

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## [What is the intended behavior for the admin page list with named servers?](https://discourse.jupyter.org/t/what-is-the-intended-behavior-for-the-admin-page-list-with-named-servers/38878)

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**Author:** [@dstack4273](https://discourse.jupyter.org/u/dstack4273)\
**Replies:** 2\
**Last updated:** [September 21, 2026, 8:09pm UTC](https://discourse.jupyter.org/t/what-is-the-intended-behavior-for-the-admin-page-list-with-named-servers/38878 "2026-09-21T20:09:48Z")

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Hello, I’ve noticed some behavior on the admin page when using named servers along with c.DockerSpawner.remove=True. The containers stop and are removed when the user signs out/closes their tabs as I would expect. But t…

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## [Question Regarding Server-Side Behavior after Logout](https://discourse.jupyter.org/t/question-regarding-server-side-behavior-after-logout/38459)

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**Author:** [@heffalump](https://discourse.jupyter.org/u/heffalump)\
**Replies:** 1\
**Last updated:** [March 13, 2026, 4:36pm UTC](https://discourse.jupyter.org/t/question-regarding-server-side-behavior-after-logout/38459 "2026-03-13T16:36:53Z")

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Hello, I have a question about the logout behavior in The Littlest JupyterHub (TLJH), specifically regarding the jupyterhub-hub-login cookie. When a user logs into The Littlest JupyterHub (TLJH), the browser receives a…

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## [How does Jupyter Server load its config?](https://discourse.jupyter.org/t/how-does-jupyter-server-load-its-config/37947)

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**Author:** [@dstack4273](https://discourse.jupyter.org/u/dstack4273)\
**Replies:** 2\
**Last updated:** [September 26, 2025, 1:14am UTC](https://discourse.jupyter.org/t/how-does-jupyter-server-load-its-config/37947 "2025-09-26T01:14:40Z")

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Hello all, I can’t find any information in the various docs that indicate if the config is only loaded when the server is launched or if changes are updated to a running instance. Does JupyterLab work like Hub and only …

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## [How to correctly access named servers via browser in API mode?](https://discourse.jupyter.org/t/how-to-correctly-access-named-servers-via-browser-in-api-mode/34654)

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**Author:** [@luzhifer](https://discourse.jupyter.org/u/luzhifer)\
**Replies:** 6\
**Last updated:** [April 24, 2025, 3:58pm UTC](https://discourse.jupyter.org/t/how-to-correctly-access-named-servers-via-browser-in-api-mode/34654 "2025-04-24T15:58:33Z")

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Hey everyone, I’m looking for a way to painlessly allow users from another service to spawn and access a named server. Ideally, a user already authenticated with my service could just click a link to access their notebo…

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## [Anyone with the same bug?](https://discourse.jupyter.org/t/anyone-with-the-same-bug/31389)

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**Author:** [@Bware](https://discourse.jupyter.org/u/Bware)\
**Replies:** 1\
**Last updated:** [January 5, 2025, 4:47pm UTC](https://discourse.jupyter.org/t/anyone-with-the-same-bug/31389 "2025-01-05T16:47:02Z")

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## [Configuring PAMAuthenticator executor](https://discourse.jupyter.org/t/configuring-pamauthenticator-executor/27436)

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**Author:** [@Will-Shanks](https://discourse.jupyter.org/u/Will-Shanks)\
**Replies:** 7\
**Last updated:** [August 6, 2024, 10:16pm UTC](https://discourse.jupyter.org/t/configuring-pamauthenticator-executor/27436 "2024-08-06T22:16:26Z")

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Is it possible to configure what executor the PAMAuthenticator uses? I’ve tried the obvious adding c.PAMAuthenticator.executor=ThreadPoolExecutor(10) to my jupyterhub\_config.py with no luck. Context: I’ve been debuggin…

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## [Does disabling labextensions reduce page reload time in jupyterlab 4?](https://discourse.jupyter.org/t/does-disabling-labextensions-reduce-page-reload-time-in-jupyterlab-4/25032)

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**Author:** [@Raghav\_Mittal](https://discourse.jupyter.org/u/Raghav_Mittal)\
**Replies:** 1\
**Last updated:** [April 8, 2024, 8:00am UTC](https://discourse.jupyter.org/t/does-disabling-labextensions-reduce-page-reload-time-in-jupyterlab-4/25032 "2024-04-08T08:00:48Z")

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Hello team, I recently came to know that in JL4, some optimizations has been done with respect to not pulling static assets for disabled extensions. So to try this out, I was experimenting with the open source jupyter-ai …

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## [Can we pass tornado Requesthandler header to jupyterlab](https://discourse.jupyter.org/t/can-we-pass-tornado-requesthandler-header-to-jupyterlab/24908)

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**Author:** [@harshad16](https://discourse.jupyter.org/u/harshad16)\
**Replies:** 0\
**Last updated:** [April 1, 2024, 6:52am UTC](https://discourse.jupyter.org/t/can-we-pass-tornado-requesthandler-header-to-jupyterlab/24908 "2024-04-01T06:52:12Z")

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Hello, I was trying to check on whether we can pass the tornado requesthandler header to jupyterlab. As I trying to set up a proxy before the jupyterlab, and was sending some custom headers, I could get in a tornado app…

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## [Widgets, CDN, and privacy](https://discourse.jupyter.org/t/widgets-cdn-and-privacy/21564)

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**Author:** [@nvitucci](https://discourse.jupyter.org/u/nvitucci)\
**Replies:** 3\
**Last updated:** [September 28, 2023, 2:42pm UTC](https://discourse.jupyter.org/t/widgets-cdn-and-privacy/21564 "2023-09-28T14:42:23Z")

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Hi all! I have a question on the usage of Widgets. Given that, for example, the icons are fetched from a CDN, and I think the same for other Web-related components too, what are the privacy concerns in terms of data leak…

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## [React JSON schema form for JupyterHub Spawner form](https://discourse.jupyter.org/t/react-json-schema-form-for-jupyterhub-spawner-form/20981)

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**Author:** [@mahendrapaipuri](https://discourse.jupyter.org/u/mahendrapaipuri)\
**Replies:** 0\
**Last updated:** [August 21, 2023, 1:53pm UTC](https://discourse.jupyter.org/t/react-json-schema-form-for-jupyterhub-spawner-form/20981 "2023-08-21T13:53:47Z")

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Hello, We are exploring the way to use react-jsonschema-form (rjsf) to generate spawner form for our JupyterHub deployment. rjsf prevents the default action on form submit to perform validation checks and we would like …

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## [How to understand dependency versions when deploying little binderhubs](https://discourse.jupyter.org/t/how-to-understand-dependency-versions-when-deploying-little-binderhubs/20341)

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**Author:** [@stevejpurves](https://discourse.jupyter.org/u/stevejpurves)\
**Replies:** 1\
**Last updated:** [July 11, 2023, 12:13pm UTC](https://discourse.jupyter.org/t/how-to-understand-dependency-versions-when-deploying-little-binderhubs/20341 "2023-07-11T12:13:31Z")

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Hi there, I’ve been happily experimenting and deploying small binderhubs through a largely manual process (but I’m getting closer to scripting this or attempting a tljh plugin). One thing I struggle with the understand…

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## [Memory consumption of configurable-http-proxy](https://discourse.jupyter.org/t/memory-consumption-of-configurable-http-proxy/20038)

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**Author:** [@mahendrapaipuri](https://discourse.jupyter.org/u/mahendrapaipuri)\
**Replies:** 3\
**Last updated:** [June 22, 2023, 2:03pm UTC](https://discourse.jupyter.org/t/memory-consumption-of-configurable-http-proxy/20038 "2023-06-22T14:03:39Z")

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Hello all, We have deployed JupyterHub with CHP on bare-metal on our HPC platform. Currently we are on jupyterhub==3.1.1 and configurable-http-proxy==4.5.3. We have noticed that the memory consumption of CHP increases s…

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## [Jupyterhub 500 Error - SSL connection has been closed unexpectedly \[tornado, ioloop\]](https://discourse.jupyter.org/t/jupyterhub-500-error-ssl-connection-has-been-closed-unexpectedly-tornado-ioloop/9106)

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**Author:** [@sarathbabu1212](https://discourse.jupyter.org/u/sarathbabu1212)\
**Replies:** 7\
**Last updated:** [October 10, 2022, 3:52pm UTC](https://discourse.jupyter.org/t/jupyterhub-500-error-ssl-connection-has-been-closed-unexpectedly-tornado-ioloop/9106 "2022-10-10T15:52:14Z")

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JupyterHub version 1.2.1 hosted on EKS AWS Aurora Postgres Serverless as hub Db Every day we are receiving database connection exception which gives 500 as error response code. Not really sure which part triggers this…

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## [Jupyter-to-LaTex | How to render tables?](https://discourse.jupyter.org/t/jupyter-to-latex-how-to-render-tables/14968)

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**Author:** [@rhuntsinger](https://discourse.jupyter.org/u/rhuntsinger)\
**Replies:** 2\
**Last updated:** [July 19, 2022, 5:44pm UTC](https://discourse.jupyter.org/t/jupyter-to-latex-how-to-render-tables/14968 "2022-07-19T17:44:43Z")

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My attempts to convert from beautiful Jupyter notebook format (with output generated by R code) to publication-ready LaTex format continue. Tables are not being rendered as desired. Here’s where I’m at … • The R data.…

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## [Add additional port on singleuser pod as spark.driver.port](https://discourse.jupyter.org/t/add-additional-port-on-singleuser-pod-as-spark-driver-port/14617)

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**Author:** [@bryan](https://discourse.jupyter.org/u/bryan)\
**Replies:** 1\
**Last updated:** [June 17, 2022, 12:36am UTC](https://discourse.jupyter.org/t/add-additional-port-on-singleuser-pod-as-spark-driver-port/14617 "2022-06-17T00:36:56Z")

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I am running jupyterhub from zero-to-jupterhub helm. and using juputer stack image (jupyter/all-spark-notebook:spark-3.2.1) when I launch spark job, the executor pods initiate property, but failed to communicate with th…

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## [Why are hub and user jupyterhub versions mismatched in the z2jh Helm chart?](https://discourse.jupyter.org/t/why-are-hub-and-user-jupyterhub-versions-mismatched-in-the-z2jh-helm-chart/14579)

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**Author:** [@chert](https://discourse.jupyter.org/u/chert)\
**Replies:** 2\
**Last updated:** [June 15, 2022, 6:52am UTC](https://discourse.jupyter.org/t/why-are-hub-and-user-jupyterhub-versions-mismatched-in-the-z2jh-helm-chart/14579 "2022-06-15T06:52:46Z")

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Deploying JupyterHub on Kubernetes using the chart at https://jupyterhub.github.io/helm-chart/jupyterhub-1.2.0.tgz with the default values packaged in the chart gives me the following warning in the hub pod’s logs: \[W 2…

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## [JupyterLab bundler names](https://discourse.jupyter.org/t/jupyterlab-bundler-names/4051)

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**Author:** [@betatim](https://discourse.jupyter.org/u/betatim)\
**Replies:** 3\
**Last updated:** [May 27, 2022, 12:36pm UTC](https://discourse.jupyter.org/t/jupyterlab-bundler-names/4051 "2022-05-27T12:36:10Z")

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Does somebody know the different ways a bundler extension can influence the name displayed in the “Export As …” menu of JupyterLab? I created a new extension that allows users to save their notebook as PDF. I would li…

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## [Any ideas for this project?](https://discourse.jupyter.org/t/any-ideas-for-this-project/12813)

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**Author:** [@PPF](https://discourse.jupyter.org/u/PPF)\
**Replies:** 1\
**Last updated:** [January 31, 2022, 1:08pm UTC](https://discourse.jupyter.org/t/any-ideas-for-this-project/12813 "2022-01-31T13:08:56Z")

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So I’m creating a project for my school science fair with Jupyter Notebook. I currently have an algorithm that can somewhat accurately predict the genre of music someone of a certain age and gender would like. My next pu…

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## [Kubespawner\_override images](https://discourse.jupyter.org/t/kubespawner-override-images/12293)

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**Author:** [@chenshap](https://discourse.jupyter.org/u/chenshap)\
**Replies:** 3\
**Last updated:** [December 28, 2021, 4:44pm UTC](https://discourse.jupyter.org/t/kubespawner-override-images/12293 "2021-12-28T16:44:26Z")

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Hi, I’m new on Jupyterhub. I want to pull production images on kubespawner\_override . does the Docker image have to install the jupyterhub package or import it from a parent image? then it won’t test the real prod Doc…

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## [Giving all jupyterhub 2.0 users access to a resource](https://discourse.jupyter.org/t/giving-all-jupyterhub-2-0-users-access-to-a-resource/12029)

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**Author:** [@Anton\_Akhmerov](https://discourse.jupyter.org/u/Anton_Akhmerov)\
**Replies:** 5\
**Last updated:** [December 6, 2021, 3:26pm UTC](https://discourse.jupyter.org/t/giving-all-jupyterhub-2-0-users-access-to-a-resource/12029 "2021-12-06T15:26:22Z")

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TL;DR: How to give all users access to a jupyerhub resource on jhub 2.0? I’m experimenting with RBAC and RTC on Jupyterhub 2.0, largely inspired by ideas brought up in My immediate plan, while waiting for server-leve…

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## [SP-initiated SAML problem](https://discourse.jupyter.org/t/sp-initiated-saml-problem/11812)

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**Author:** [@MatteoP](https://discourse.jupyter.org/u/MatteoP)\
**Replies:** 1\
**Last updated:** [November 25, 2021, 11:05pm UTC](https://discourse.jupyter.org/t/sp-initiated-saml-problem/11812 "2021-11-25T23:05:43Z")

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Hi! I am trying to setup saml2 authentication + authorization mechanism for JupyterHub with Oracle Access Manager. I used the official library jupyterhub-samlauthenticator, found on the jupyterhub’s wiki. I got stuck…

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## [PermissionError \[Error 13\] after manual creation of PersistentVolume and StorageClass](https://discourse.jupyter.org/t/permissionerror-error-13-after-manual-creation-of-persistentvolume-and-storageclass/10170)

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**Author:** [@tnecnivkcots](https://discourse.jupyter.org/u/tnecnivkcots)\
**Replies:** 3\
**Last updated:** [August 19, 2021, 12:18pm UTC](https://discourse.jupyter.org/t/permissionerror-error-13-after-manual-creation-of-persistentvolume-and-storageclass/10170 "2021-08-19T12:18:12Z")

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Hello jupyterhub team and community, I have a question about an issue which occurs, if I deploy jupyterhub on my kubernetescluster. The first thing was, when I deployed jupyterhub, the hub pod stayed ‘pending’ caused …

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## [Encrypting passwords](https://discourse.jupyter.org/t/encrypting-passwords/9582)

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**Author:** [@Armadik](https://discourse.jupyter.org/u/Armadik)\
**Replies:** 0\
**Last updated:** [June 13, 2021, 8:17pm UTC](https://discourse.jupyter.org/t/encrypting-passwords/9582 "2021-06-13T20:17:35Z")

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Good afternoon, I’m trying to set up a zero-to-jupyterhub with LDAP and Kerberos integration (hadoop). To get a TGT, I need to pass the user’s password to the user’s POD and do kinit. I have thoughts on how to implement …

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## [Z2JH - How to disable Jupyter Notebook, once migrated to Jupyter Lab](https://discourse.jupyter.org/t/z2jh-how-to-disable-jupyter-notebook-once-migrated-to-jupyter-lab/9506)

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**Author:** [@robertpyke](https://discourse.jupyter.org/u/robertpyke)\
**Replies:** 1\
**Last updated:** [June 9, 2021, 2:29pm UTC](https://discourse.jupyter.org/t/z2jh-how-to-disable-jupyter-notebook-once-migrated-to-jupyter-lab/9506 "2021-06-09T14:29:33Z")

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Hi, We run a lightly customized zero-to-jupyterhub-k8s deployment. We migrated our default endpoint to JupyterLab ( Customizing User Environment — Zero to JupyterHub with Kubernetes documentation ), and we’ve got severa…

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## [JupyterHub for a reproducible research platform](https://discourse.jupyter.org/t/jupyterhub-for-a-reproducible-research-platform/9515)

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**Author:** [@sgaist](https://discourse.jupyter.org/u/sgaist)\
**Replies:** 0\
**Last updated:** [June 8, 2021, 12:46pm UTC](https://discourse.jupyter.org/t/jupyterhub-for-a-reproducible-research-platform/9515 "2021-06-08T12:46:21Z")

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I am part of a team that is currently exploring the use of JupyterHub as a base for the next generation of our platform for reproducible research (currently known as BEAT). Background: We already make use of JupyterHub …

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## [GitHub commits on Jupyter Notebook with date before 2008](https://discourse.jupyter.org/t/github-commits-on-jupyter-notebook-with-date-before-2008/9359)

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**Author:** [@AthinaD](https://discourse.jupyter.org/u/AthinaD)\
**Replies:** 1\
**Last updated:** [May 28, 2021, 7:06pm UTC](https://discourse.jupyter.org/t/github-commits-on-jupyter-notebook-with-date-before-2008/9359 "2021-05-28T19:06:34Z")

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Hi to everyone A few days ago i saw that the initial commit of Jupyter Notebook’s repo dates from 6 July 2005. Github launched in April 2008 (according to wikipedia). I wanted to know: How you worked before github w…

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## [A documentation workshop for the Jupyter community?](https://discourse.jupyter.org/t/a-documentation-workshop-for-the-jupyter-community/8491)

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**Author:** [@choldgraf](https://discourse.jupyter.org/u/choldgraf)\
**Replies:** 2\
**Last updated:** [May 3, 2021, 12:00am UTC](https://discourse.jupyter.org/t/a-documentation-workshop-for-the-jupyter-community/8491 "2021-05-03T00:00:15Z")

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Hey all - I wanted to gauge whether others are interested in having a workshop on documentation. Daniele Procida has done a lot speaking on “frameworks for documentation”. Here is one of his youtube talks. I’ve found thi…

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## [Installing a prebuilt labextension + server extension](https://discourse.jupyter.org/t/installing-a-prebuilt-labextension-server-extension/8426)

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**Author:** [@mwakaba2](https://discourse.jupyter.org/u/mwakaba2)\
**Replies:** 2\
**Last updated:** [March 23, 2021, 2:50am UTC](https://discourse.jupyter.org/t/installing-a-prebuilt-labextension-server-extension/8426 "2021-03-23T02:50:34Z")

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Hi, I have a question on prebuilt lab extensions for Jupyterlab v3. My understanding of prebuilt labextensions is that I can install/enable them in the Jupyterlab terminal and start using them after refreshing the page …

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## [Help: Jupyter won't load ENOENT, won't open a notebook in VS Code](https://discourse.jupyter.org/t/help-jupyter-wont-load-enoent-wont-open-a-notebook-in-vs-code/6880)

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**Author:** [@brett\_knoss](https://discourse.jupyter.org/u/brett_knoss)\
**Replies:** 3\
**Last updated:** [November 24, 2020, 11:54pm UTC](https://discourse.jupyter.org/t/help-jupyter-wont-load-enoent-wont-open-a-notebook-in-vs-code/6880 "2020-11-24T23:54:43Z")

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I hap Jupyter working, but now it says it won’t something called EONAC when I try to save, and it won’t open a new notebook.

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## [ Question about user authentication with another webapp](https://discourse.jupyter.org/t/question-about-user-authentication-with-another-webapp/6562)

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**Author:** [@gcca](https://discourse.jupyter.org/u/gcca)\
**Replies:** 3\
**Last updated:** [October 31, 2020, 5:33pm UTC](https://discourse.jupyter.org/t/question-about-user-authentication-with-another-webapp/6562 "2020-10-31T17:33:12Z")

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Hi, folks. I have the following scenario: Assumptions: I have a web application XYZ whose OAuth2 provider is Google. I have a JupyterHub server, set up to use Google as the OAuth2 provider. What I want: Given a “sh…

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