Just to follow up - removing the above files and restarting Jupyter Notebook WORKED!!! THANK YOU!!!!!
On Wednesday, April 24, 2024 at 1:57:44 PM UTC-4 S Benton wrote: > I will have her do this and let you know if it works. If it doesn't, I > will raise a ticket as indicated earlier. THANK YOU!! > > On Wednesday, April 24, 2024 at 9:26:05 AM UTC-4 Marc Culler wrote: > >> Please also have her remove the directory: >> ~/Library/Application\ Support/SageMath-10-3/Jupyter >> >> I misstated where the Jupyter runtime directory is located for the >> current 10.3 app, and this is also different from the directory that Dima >> mentioned, which was used by 10.2 and earlier. >> >> When the SageMath-10.3 jupyter kernel starts up it creates files in its >> runtime directory describing how to connect to the kernel. When the >> SageMath app shuts down it sends a TERM signal to the kernel process it >> started. When that kernel process receives the signal it removes the files >> it created. Sometimes it can happen that a kernel is killed in a way, >> which prevents it from removing its runtime files. This can cause a later >> invocation of jupyter to try connecting to a non-existent kernel or to use >> an invalid token when connecting to an existing kernel. >> >> - Marc >> >> On Tuesday, April 23, 2024 at 11:31:38 PM UTC-5 S Benton wrote: >> >>> An enormous and sincere thank you to all of you! I will make sure her >>> mac os is updated and have her remove the above directories/files. >>> Hopefully that will do the trick, but if not I will open an issue at >>> github. And yes - she tried Cocalc and it got her able to submit her >>> assignment tonight, at least! >>> >>> Thank you again!!! >>> >>> On Tuesday, April 23, 2024 at 6:58:30 PM UTC-4 Marc Culler wrote: >>> >>>> The 10.3 version of the app uses the standard location for Jupyter >>>> runtime files: ~/Library/Jupyter >>>> >>>> - Marc >>>> >>>> On Tuesday, April 23, 2024 at 5:08:43 PM UTC-5 Dima Pasechnik wrote: >>>> >>>>> PS. From what I see on >>>>> https://github.com/3-manifolds/Sage_macOS/issues/28 >>>>> I gather you might try to remove (or better, rename, to be on the safe >>>>> side) the folders >>>>> >>>>> ~/Library/Application Support/SageMath/*/Jupyter >>>>> >>>>> in other to be able to start Jupyter again. >>>>> >>>>> >>>>> >>>>> >>>>> On Tue, Apr 23, 2024 at 10:57 PM Dima Pasechnik <dim...@gmail.com> >>>>> wrote: >>>>> > >>>>> > On Tue, Apr 23, 2024 at 10:29 PM S Benton <brent...@gmail.com> >>>>> wrote: >>>>> > >>>>> > > We are not using the app. She downloaded SageMath-10.3_arm64.dmg >>>>> from github., double clicked the executable and followed the installation >>>>> instructions. To launch, she clicks the SageMath-10-3 icon along the >>>>> bottom >>>>> of her mac. This gives her the option to open Jupyter Notebook, which she >>>>> does, using the SageMath kernel. >>>>> > >>>>> > OK. What macOS version do you run? >>>>> > Do you have all the updates installed ? (you should) >>>>> > >>>>> > > >>>>> > > She has a 3 year old mac and I'm wondering if it just doesn't have >>>>> the processing power it needs to do these more intensive mathematical >>>>> computations. (plus she probably has other stuff up on her computer) So >>>>> when Jupyter Lab konks out, she is unable to restart it. Even if she >>>>> reboots her computer, when she tries to relaunch from the SageMath icon, >>>>> she gets the Local host Error connection refused. She looks in Activity >>>>> Monitor and says she has killed all of the python processes, but still >>>>> cannot launch SageMath. >>>>> > >>>>> > it's most probably a stale "lock" file, just a file created by a >>>>> > process to indicate that it's running; such a file is cleaned on a >>>>> > normal exit, >>>>> > but not in case of a crash. >>>>> > >>>>> > I must say I don't know much about this app, I'll cc to one of the >>>>> authors. >>>>> > >>>>> > Marc, could you have a look? >>>>> > >>>>> > The app has a dedicated issue tracker: >>>>> > https://github.com/3-manifolds/Sage_macOS/issues >>>>> > it might be better to report there. >>>>> > >>>>> > > >>>>> > > The last time this happened we removed and then reinstalled >>>>> SageMath. But that's a tough way to keep things moving. I'm wondering if >>>>> when Jupyter Lab dies, if there are files that live on and make it so >>>>> that >>>>> she cannot relaunch. We have not been able to find, or just lack the >>>>> skills >>>>> to find, where any of these files might be located. I tried to run >>>>> "jupyter" commands from the terminal, but they come back as unknown and >>>>> searching through "finder" on the mac is not getting us anywhere. >>>>> > > >>>>> > > Short of buying a new computer or continuing to reinstall >>>>> SageMath, I'm wondering if there is a simpler of way of getting things up >>>>> and running again for her. >>>>> > > >>>>> > Certainly a 3 y.o. machine is more than enough to run Sage, it's >>>>> some >>>>> > kind of software glitch, I suppose. >>>>> > I'm running Sage (and writing this email from a 7 y.o. machine just >>>>> fine). >>>>> > >>>>> > A quick way to run Sage is to use https://cocalc.com >>>>> > (you can upload Jupyter notebooks there to run; you can even use it >>>>> for free, >>>>> > but to make it run better you'd need to pay something like $7 per >>>>> month) >>>>> > >>>>> > There are several other ways to run Sage locally on your mac, >>>>> > but let's try things in turn first. >>>>> > >>>>> > Hope this helps, >>>>> > Dima >>>>> > >>>>> > > Thank you so much for responding. It is deeply appreciated. >>>>> > > >>>>> > > >>>>> > > >>>>> > > On Tuesday, April 23, 2024 at 4:05:17 PM UTC-4 Dima Pasechnik >>>>> wrote: >>>>> > >> >>>>> > >> Hi, >>>>> > >> >>>>> > >> please tell us more about the Sage version, and how you installed >>>>> it, and how you launch the notebook. >>>>> > >> >>>>> > >> Do you use the Sagemath macOS app? >>>>> > >> >>>>> > >> >>>>> > >> Dima >>>>> > >> >>>>> > >> >>>>> > >> On 23 April 2024 20:05:12 BST, S Benton <brent...@gmail.com> >>>>> wrote: >>>>> > >>> >>>>> > >>> Hi - at my wit's end here - my daughter is trying to use Sage >>>>> Math Jupyter Notebook for her college coursework. She has had problems >>>>> where if Notebook crashes, she is unable to relaunch it - she gets a >>>>> "connection refused" error and it mentions Local Host 8888. Last time, we >>>>> reinstalled everything and she was able to get up and running again. >>>>> However, this keeps happening. >>>>> > >>> >>>>> > >>> I am wondering if - when Notebook crashes - if there are still >>>>> processes running out there that are preventing her from relaunching a >>>>> new >>>>> instance of Notebook. She is on a mac, and I'm trying to find the >>>>> commands >>>>> or directories where these processes or files might stored so that I can >>>>> remove them. >>>>> > >>> >>>>> > >>> I am not able to use any of the "Jupyter" commands from the mac >>>>> command line to see what is running. Does anyone have any help they can >>>>> offer on why this might be happening and how i can get her up and running >>>>> again? >>>>> > >>> >>>>> > >>> Many thanks >>>>> > > >>>>> > > -- >>>>> > > You received this message because you are subscribed to the Google >>>>> Groups "sage-support" group. >>>>> > > To unsubscribe from this group and stop receiving emails from it, >>>>> send an email to sage-support...@googlegroups.com. >>>>> > > To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/sage-support/12aa12b6-1574-46d8-99b8-f6d72252166an%40googlegroups.com. >>>>> >>>>> >>>>> >>>> -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/58bff103-f49c-4b2a-a8f0-40b15d20990en%40googlegroups.com.
