Microstack.init Compute node fail to join

I installed microstack following instructions on Ubuntu site for “Multi-node OpenStack deployment” on Ubuntu Desktop 20.02 LTS on Intel NUC hardware.
Install results were successful.
Latest microstack version ussuri was installed in devmode
Initialised Control node successfully with IP address 192.168.1.141.
Compute node with IP address 192.168.1.142 failed to join microstack with control node.
Key Traceback statements are:
Exception: Failed to get info from control node:
and
subprocess.CalledProcessError: Command ‘(microstack_join’,) returned non-zero exit status 1.

Any idea on cause of problems?
Are there any known issues with latest version of microstack on latest LTS?

It sounds like the MicroStack compute node might be having some trouble routing requests to the control node. I just dropped a comment on a bug tracking egress issues in MicroStack here:

MicroStack could definitely do more sophisticated things with networking config, especially on machines with multiple NICs. You might look through the system logs (journalctl -xe) to see if there are any obvious errors in MicroStack services, or any interesting networking related messages in the log.

When I ran microstack.init again, there were NO Microstack service errors reported in system logs.
The full transcript is:

$ sudo microstack.init
[sudo] password for doug:
Do you want to setup clustering? (yes/no) [default=no] > yes
2020-10-07 17:33:03,441 - microstack_init - INFO - Configuring clustering …
What is this machines’ role? (control/compute) > compute
Please enter a cluster password >
Please re-enter password >
Please enter the ip address of the control node [default=192.168.1.141] > 192.168.1.141
Please enter the ip address of this node [default=192.168.1.142] > 192.168.1.142
2020-10-07 17:33:59,009 - microstack_init - INFO - I am a compute node.
Traceback (most recent call last):
File “/snap/microstack/210/bin/microstack_join”, line 11, in
load_entry_point(‘microstack-cluster==0.0.1’, ‘console_scripts’, ‘microstack_join’)()
File “/snap/microstack/210/lib/python3.8/site-packages/cluster/client.py”, line 26, in join
raise Exception(‘Failed to get info from control node: {}’.format(
Exception: Failed to get info from control node: <bound method Response.json of <Response [500]>>
Traceback (most recent call last):
File “/snap/microstack/210/bin/microstack_init”, line 11, in
load_entry_point(‘microstack-init==0.0.1’, ‘console_scripts’, ‘microstack_init’)()
File “/snap/microstack/210/lib/python3.8/site-packages/init/main.py”, line 55, in wrapper
return func(*args, **kwargs)
File “/snap/microstack/210/lib/python3.8/site-packages/init/main.py”, line 171, in init
question.ask()
File “/snap/microstack/210/lib/python3.8/site-packages/init/questions/question.py”, line 210, in ask
self.yes(awr)
File “/snap/microstack/210/lib/python3.8/site-packages/init/questions/init.py”, line 84, in yes
check_output(‘microstack_join’)
File “/snap/microstack/210/lib/python3.8/site-packages/init/shell.py”, line 80, in check_output
return subprocess.check_output(args, env=env,
File “/usr/lib/python3.8/subprocess.py”, line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File “/usr/lib/python3.8/subprocess.py”, line 512, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command ‘(‘microstack_join’,)’ returned non-zero exit status 1.