Cannot deploy a single-machine graph store using a specific Amazon Machine Image

Description

When deploying a single-machine ArcGIS Data Store graph store on Ubuntu 22.04 using the 11.5 CloudFormation template arcgis-datastore-singlemachine.template.json, it fails to configure the data store. This only occurs with the following Amazon Machine Image (AMI) or images created from it: ubuntu/images/hvm-ssd/ubuntu-jammy-22.04-amd64-server-20250516.

You will encounter one of the error messages shown below:

Error encountered:
Could not connect to server on machine ‘localhost’. ArcGIS Data Store or ArcGIS Server on that machine may not be running or the machine is not reachable at this time.

Or, from the SSM logs:

STDERR: Error encountered: 
Machine 'https://localhost:2443/arcgis/datastoreadmin' returned an error. 'There is already a data store configuration request running.'

Cause

The ArangoDB Java driver is stuck when it attempts to connect to the graph store. This issue is currently under investigation in BUG-000176846.

Solution or Workaround

To avoid this issue, do not use the ubuntu/images/hvm-ssd/ubuntu-jammy-22.04-amd64-server-20250516 AMI, or any AMI derived from it, when deploying a single-machine graph store using the 11.5 arcgis-datastore-singlemachine.template.json CloudFormation template. For the EC2 Instance AMI ID parameter, provide the ID of a different AMI that uses a supported operating system.