Hello everybody,
Until this morning, I had a working MySensors integration on Home Assistant using the MQTTGateway. This morning, I upgraded my host-system to Ubuntu 20.04 LTS, and although Home Assistant itself is running perfectly, I can’t seem to get the MySensors integration part working again. I am not completely sure this is related to the upgrade, but it would be a very unlucky coincidence 
I am running Home Assistant 0.109.3 using Hass.io, installed with Home Assistant supervised installer, running on an Intel NUC, on a Ubuntu 20.04 LTS server, upgrading from a Ubuntu 18.04 LTS server.
My configuration is still quite simple, with 2 remote sensors, one publishing the temperature based on a Dallas sensor, the other publishing both TEMP/HUM based on a DHT22. The configuration.yaml looks like this:
mysensors:
gateways:
- device: mqtt
persistence_file: '/tmp/mysensors.json'
topic_in_prefix: 'MySensorsOut'
topic_out_prefix: 'MySensorsIn'
Now, the problem is in my opinion easily pinpointed to the MySensors integration, as the MQTTGateway has always continued writing sensor-values to the Queue, but since the update, no entities are created anymore.
In the Gateway logs, it looks ok aswell, I think.
0 MCO:BGN:INIT GW,CP=RNNGA—,FQ=16,REL=255,VER=2.3.2
4 TSM:INIT
5 TSF:WUR:MS=0
12 TSM:INIT:TSP OK
13 TSM:INIT:GW MODE
15 TSM:READY:ID=0,PAR=0,DIS=0
18 MCO:REG:NOT NEEDED
695 GWT:TPC:IP=xxx.xxx.xxx.xxx
1697 MCO:BGN:STP
1699 MCO:BGN:INIT OK,TSP=1
1816 GWT:TPC:IP=xxx.xxx.xxx.xxx
2820 GWT:RMQ:CONNECTING…
3027 GWT:RMQ:OK
3030 GWT:TPS:TOPIC=MySensorsOut/0/255/0/0/18,MSG SENT
3036 TSM:READY:NWD REQ
3041 ?TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=20,pt=0,l=0,sg=0,ft=0,st=OK:
> 18961 TSF:MSG:READ,2-2-0,s=0,c=1,t=0,pt=7,l=5,sg=0:23.2
> 18966 GWT:TPS:TOPIC=MySensorsOut/2/0/1/0/0,MSG SENT
> 55791 TSF:MSG:READ,1-1-0,s=0,c=1,t=1,pt=7,l=5,sg=0:64.3
> 55797 GWT:TPS:TOPIC=MySensorsOut/1/0/1/0/1,MSG SENT
In the logs, I can see that the Home Assistant plugin is loaded correctly, and that a subscription is successfully done.
2020-05-04 14:11:16 INFO (MainThread) [homeassistant.setup] Setting up mysensors
2020-05-04 14:11:16 DEBUG (SyncWorker_9) [mysensors.persistence] Loading sensors from persistence file /tmp/mysensors.json
2020-05-04 14:11:16 DEBUG (SyncWorker_2) [mysensors.persistence] Saving sensors to persistence file /tmp/mysensors.json
2020-05-04 14:11:16 INFO (SyncWorker_4) [homeassistant.loader] Loaded google_translate from homeassistant.components.google_translate
2020-05-04 14:11:16 INFO (MainThread) [homeassistant.setup] Setting up tts
2020-05-04 14:11:16 INFO (MainThread) [homeassistant.setup] Setup of domain mysensors took 0.1 seconds.
2020-05-04 14:11:16 INFO (MainThread) [mysensors.gateway_mqtt] Setting up initial MQTT topic subscription
2020-05-04 14:11:16 DEBUG (MainThread) [mysensors.gateway_mqtt] Subscribing to: MySensorsOut/+/+/0/+/+, qos: 0
2020-05-04 14:11:16 DEBUG (MainThread) [mysensors.gateway_mqtt] Subscribing to: MySensorsOut/+/+/3/+/+, qos: 0
2020-05-04 14:11:16 INFO (MainThread) [homeassistant.setup] Setup of domain tts took 0.0 seconds.
2020-05-04 14:11:16 INFO (MainThread) [homeassistant.setup] Setting up hassio
2020-05-04 14:11:16 INFO (MainThread) [homeassistant.setup] Setup of domain hassio took 0.0 seconds.
2020-05-04 14:11:17 INFO (MainThread) [homeassistant.bootstrap] Home Assistant initialized in 9.94s
2020-05-04 14:11:17 INFO (MainThread) [homeassistant.core] Starting Home Assistant
2020-05-04 14:11:17 INFO (SyncWorker_3) [homeassistant.components.zeroconf] Starting Zeroconf broadcast
2020-05-04 14:11:17 INFO (MainThread) [homeassistant.core] Timer:starting
I also know this subscription works well, because creating a manual topic causes the system to react. Publishing MySensorsOut/3/0/0/0/0 causes the following item in the logs:
2020-05-04 14:16:22 DEBUG (MainThread) [mysensors.gateway_mqtt] Receiving 3;0;0;0;0;20
2020-05-04 14:16:22 WARNING (MainThread) [mysensors] Node 3 is unknown
2020-05-04 14:16:22 ERROR (MainThread) [mysensors.handler] Node 3 is unknown, will not add child 0
Other things I have allready tried, without success:
- Restore of a snapshot from when MQTT was still working. Both with Restore and Restore & Wipe. Strangely enough, this doesn’t change anything.
- Disabling and re-enabling of the Mysensors-integration.
- Disabling the persistance-part in the config.
- Restarting the MQTTGateway.
- Restarting almost everything else including emptying the MQTT-queue.
- Update to 0.109.
I have little knowledge about the exact mechanics of the HA MySensors integration. Can anybody else think of something else that could be causing this?
Many thanks & Stay healthy!
Hans.