Docker Container Nucleus: Server Connection Failure

[rosalie_va]

Hi!

I’m getting the server connection failure error when trying to access the nucleus server of my Isaac Sim container (all necessary ports are open so it should not be a firewall problem).

As for context, I have created the Isaac Docker Container in an Azure Virtual Machine about 4 weeks ago (as of making this post) according to the instructions described in 3. Advanced Installation — Omniverse Robotics documentation, so this was before the general Nucleus server failure that was recently experienced. Before this failure, I was able to re-enter my docker container succesfully like so:

$ sudo docker start <container_id>
$ sudo docker exec -it <container_id> bash

and could then simply start the Nucleus using ./start_nucleus.sh. However, since the failure I have not been able to get into the Nucleus server anymore due to a “server connection failure”. I’ve already followed the Docker Container Fix instructions from this post: Known Issue: Error checking Isaac Sim Assets, including stopping and restarting the server as described in step 8 in 3. Advanced Installation — Omniverse Robotics documentation but unfortunately that did not fix the problem.

I have already considered simply deleting the container and re-doing the Advanced Installation starting at step 7, but I figured that where I’m stuck at now should somehow be fixable. Does someone know what’s going on?

[Sheikh_Dawood]

Hi. Do you run the container with the volume mount below?
-v ~/docker/isaac-sim/data:/root/.local/share/ov/data:rw \

You may need to do a clean install of Nucleus. This will remove all data on the Nucleus, if you have the data cached locally using volume mounts.
Steps:

1. In the container, run ./stop_nucleus.sh
2. Delete the folders below:
   • rm -rf /root/.local/share/ov/Auth
   • rm -rf /root/.local/share/ov/server
   • rm -rf /root/.local/share/ov/tagging_service
3. Stop container.
4. Run container normally as before.

This is similar to the instruction on this post:

Cannot establish connection to the nucleus server!

I believe a clean install of Nucleus should help. When the Omniverse Launcher outage is resolved, try this. Uninstall Nucleus Delete the folders below: ~/.local/share/ov/Auth ~/.local/share/ov/server ~/.local/share/ov/tagging_service Re-install Nucleus

[rosalie_va]

This worked, thank you!
I did have to adjust the path like so: /root/.local/share/ov/data/Auth (and the same for the other paths).