plotting worker losing comms with fullnode

[hutchwilco]

On a system of fullnode, two plotters, one harvester, all previously working ok, I have one odd plotting worker behaving strangely.
It seems to stop plotting.
When I try to run plotman interactive inside the machinaris container, I get:
root@chiaplotter2:/chia-blockchain# plotman interactive Traceback (most recent call last): File "/chia-blockchain/venv/bin/plotman", line 11, in <module> load_entry_point('plotman==0.5.3+dev', 'console_scripts', 'plotman')() File "/chia-blockchain/venv/lib/python3.9/site-packages/plotman-0.5.3+dev-py3.9.egg/plotman/plotman.py", line 351, in main File "/chia-blockchain/venv/lib/python3.9/site-packages/plotman-0.5.3+dev-py3.9.egg/plotman/interactive.py", line 396, in run_interactive File "/usr/lib/python3.9/curses/__init__.py", line 94, in wrapper return func(stdscr, *args, **kwds) File "/chia-blockchain/venv/lib/python3.9/site-packages/plotman-0.5.3+dev-py3.9.egg/plotman/interactive.py", line 220, in curses_main File "/chia-blockchain/venv/lib/python3.9/site-packages/plotman-0.5.3+dev-py3.9.egg/plotman/reporting.py", line 278, in dst_dir_report File "/chia-blockchain/venv/lib/python3.9/site-packages/plotman-0.5.3+dev-py3.9.egg/plotman/plot_util.py", line 65, in list_plots OSError: [Errno 5] Input/output error: '/plots3'

When I checker the plotter docker logs, I get a repeat of this every 5 minutes:
header: Server: gunicorn header: Date: Wed, 27 Apr 2022 06:00:00 GMT header: Connection: keep-alive header: Content-Type: application/json header: Content-Length: 59 send: b'POST /drives/ HTTP/1.1\r\nHost: 10.0.1.96:8927\r\nUser-Agent: python-requests/2.27.1\r\nAccept-Encoding: gzip, deflate\r\nAccept: application/json\r\nConnection: keep-alive\r\nContent-type: application/json\r\nContent-Length: 2\r\n\r\n' send: b'[]' reply: 'HTTP/1.1 400 BAD REQUEST\r\n'

The above error is the same in the fullnode's docker logs.

I can't see anything relevant in the apisrv.log.
This is a recurrence, after it happened the first time, I restarted the plotting container.

Any hints?
Thanks!

[guydavis]

Hi, that error related to input/output of /plots3 inside the container makes me think the volume mounted incorrectly or there is an issue with the host drive at that location. Are you able to read & write within that location?

docker exec -it machinaris bash
cd /plots3
echo 'Hello World!' > test.txt
cat test.txt