UPS service upsmon error

TrueNAS General
1

So I just checked my /var/log/messages and apparently I’m getting a upsmon error. I haven’t changed anything.

TrueNAS-13.0-U6.1
APC Back-UPS 550

Jul 24 20:29:00 freenas 1 2024-07-24T20:29:00.606234-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:05 freenas 1 2024-07-24T20:29:05.612344-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:10 freenas 1 2024-07-24T20:29:10.616001-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:15 freenas 1 2024-07-24T20:29:15.710545-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:20 freenas 1 2024-07-24T20:29:20.718122-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:25 freenas 1 2024-07-24T20:29:25.733872-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:30 freenas 1 2024-07-24T20:29:30.778774-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:35 freenas 1 2024-07-24T20:29:35.780387-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:40 freenas 1 2024-07-24T20:29:40.847067-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:45 freenas 1 2024-07-24T20:29:45.951655-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:50 freenas 1 2024-07-24T20:29:50.996437-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:29:56 freenas 1 2024-07-24T20:29:56.046172-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:30:01 freenas 1 2024-07-24T20:30:01.047828-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:30:06 freenas 1 2024-07-24T20:30:06.099713-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:30:11 freenas 1 2024-07-24T20:30:11.110160-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:30:16 freenas 1 2024-07-24T20:30:16.164459-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:30:21 freenas 1 2024-07-24T20:30:21.230730-05:00 freenas.local upsmon 1301 - - UPS [ups@localhost:3493]: connect failed: Connection failure: Connection refused
Jul 24 20:30:24 freenas 1 2024-07-24T20:30:24.796949-05:00 freenas.local upsmon 1299 - - upsmon parent: read
Jul 24 20:30:25 freenas 1 2024-07-24T20:30:25.852638-05:00 freenas.local collectd 5649 - - nut plugin: nut_connect: upscli_connect (localhost, 3493) failed: Connection failure: Connection refused
Jul 24 20:30:45 freenas 1 2024-07-24T20:30:45.391595-05:00 freenas.local collectd 5649 - - nut plugin: nut_connect: upscli_connect (localhost, 3493) failed: Connection failure: Connection refused
Jul 24 20:31:25 freenas 1 2024-07-24T20:31:25.391227-05:00 freenas.local collectd 5649 - - nut plugin: nut_connect: upscli_connect (localhost, 3493) failed: Connection failure: Connection refused
2

Tested: Rebooted to 11.3-U5 and no error.

3

Tested: Rebooted to TrueNAS-12.0-U8.1 and no error.

4

I’ve had connection with the UPS getting lost, actually last month. It has been very rare for me but it has happened. A reboot is what I need to do to recover from it. If the problem occurs often, search Google for an answer “truenas ups lost connection” or similar. You will find a lot of postings. If that fails then submit a ticket for the issue.

Note: I also run TrueNAS on top of ESXi so I through maybe that contributed to my rare issues.

5

Thanks.
Initially, a reboot did not solve the issue. I don’t *think* I have the issue anymore but I’m still going to check my log files and investigate a bit more.

So, when I initially noticed the error (after a simple reboot or two) I turned off the service and then tried to boot to previous versions. After two previous version test reboots (see above) I booted back to 13.0-U6.1 and went to bed. I figured I’d try and research more in the morning, but the UPS service was enabled. I thought–apparently incorrectly–that since I turned off the service it would retain that through a reboot.

Not sure what else to say about this; I think my issue is “fixed” but I’ll report back if I find anything. Or at least the daemons used so we can service ... restart or something (unless someone already know all the daemons used).

6

It happens to me too, not often, just 3-4 times over 8 months. In my case, i stop the service → unplug the USB → plug again → restart service. Lucky i dont Need to reboot system