Running the quickstart: nomad_oasis_mongo Error

[elect86]

As titled, on a fresh VM with Debian 12 I followed all the docs:

• installed docker, the hello world works fine
• downloaded and extracted nomad-oasis.zip

then

unzip nomad-oasis.zip
cd nomad-oasis
sudo chown -R 1000 .volumes
docker compose pull
docker compose up -d

barbie15@nomad:~/nomad-oasis$ sudo docker compose up -d
WARN[0000] The "PWD" variable is not set. Defaulting to a blank string.
WARN[0000] The "PWD" variable is not set. Defaulting to a blank string.
[+] Running 11/11
✔ Network nomad_oasis_network Created 0.0s
✔ Volume "nomad_oasis_mongo" Created 0.0s
✔ Volume "nomad_oasis_rabbitmq" Created 0.0s
✔ Volume "nomad_oasis_elastic" Created 0.0s
✘ Container nomad_oasis_mongo Error 0.2s
✔ Container nomad_oasis_north Started 0.2s
✔ Container nomad_oasis_rabbitmq Healthy 0.2s
✔ Container nomad_oasis_elastic Healthy 0.2s
✔ Container nomad_oasis_app Created 0.1s
✔ Container nomad_oasis_worker Created 0.1s
✔ Container nomad_oasis_proxy Created 0.0s
dependency failed to start: container nomad_oasis_mongo is unhealthy

I'm exploring Nomad for the first time, is nomad_oasis_mongo something I need to worry about or need it?

[elect86]

Forget it, my bad

nomad_oasis_mongo |
nomad_oasis_mongo | WARNING: MongoDB 5.0+ requires a CPU with AVX support, and your current system does not appear to have that!
nomad_oasis_mongo | see https://jira.mongodb.org/browse/SERVER-54407
nomad_oasis_mongo | see also https://www.mongodb.com/community/forums/t/mongodb-5-0-cpu-intel-g4650-compatibility/116610/2
nomad_oasis_mongo | see also docker-library/mongo#485 (comment)
nomad_oasis_mongo |
nomad_oasis_mongo |

[Guillaume-Gaisne]

Hello !

I encountered this problem sooner today. I read the different links and discussions but I don't really understand what is going on here, I have few knowledge about this stuff.
Do you recall what you did at the time to mitigate this problem ?
I tried to use the version 4.4.18 of the nomad_oasis_mongo but a network issue broke everything and I can't retry it for now...

[lauri-codes]

Hi @Guillaume-Gaisne!

If you encountered this warning:

nomad_oasis_mongo | WARNING: MongoDB 5.0+ requires a CPU with AVX support, and your current system does not appear to have that!

it means that the computer you are using has a CPU that is incompatible with MongoDB, which is one of the dependencies of NOMAD. It could be that your CPU is rather old (<2011) or that it has an unusual architecture.

This is a rather hard limitation that we can't do much on our side, and the easiest fix is to use another computer for installing NOMAD. There is a much harder route that includes compiling MongoDB from source with special flags, but even their documentation says that this is untested and may result in problems.

Hope this helps!

[Guillaume-Gaisne]

Ok, thanks for the reply !
My problem is that few months ago, someone installed an Oasis on a machine and everything was working well but few weeks ago, i wanted to update this Oasis with some plugins I am developing for a project and I docker compose down the Oasis and quickly docker compose up -d it again without any changes. There, two containers were unhealthy (I can't remember which ones) so I decided to pull the images back and now, I had this problem with MongoDB.
Looking at the available images, I could see that two images for MongoDB were available: 5.0.6 (the one used for the Oasis now) and 4.4.18. As it was working before the shutdown, I suppose that it was working on the 4.4.18 version of the image but no certitude.
So I don't really understand why it was working before and it is not working now, except for this potential version difference.
Though, I tried to install an Oasis on my machine (where everything is working) with the MongoDB set to 4.4.18 and it was not working where 5.0.6 was working correctly.

[lauri-codes]

So possibly you have unintendedly updated at least the mongo image, possibly also the nomad-fair image. This might happen you have at least one of them configured using the :latest tag in your docker-compose.yaml file and then run docker-compose pull.

Since the newest version of nomad-fair requires MongoDB v5, which is not compatible with your particular machine, I think you have two options:

1. Roll back to on older version of nomad-fair + mongo
2. Run the Oasis on some other machine.

If you need further help, let me know.