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AnotherDaniel / smahub

SMAHub is a flexible and modular solution for collecting data from SMA photovoltaic (PV) products and publishing it to various output channels, such as MQTT.
GNU General Public License v2.0
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MQTT reconnect #27

Closed jardleex closed 9 months ago

jardleex commented 9 months ago

Hello @AnotherDaniel,

thanks for this awesome tool. I'm running it with an SMA Tripower X 25 with MQTT in iobroker providing data for evcc.

One thing I noticed is that smahub does not seem to reconnect when it lost it's MQTT connection. For example if I update my iobroker container, and thus my MQTT broker, smahub does not reconnect. I've set the depends_on setting in my docker-compose file but it seems Docker restarts smahub to quick before MQTT in iobroker is ready.

Would it be possible to put a reconnect loop into the MQTT (and maybe other) sinks?

AFAIK it's not possible to have additional/multiple health checks in a docker-compose file. I had the idea to extend the health check of my iobroker to give a proper health check but it seems not possible. Also there is no health check for smahub, which I assume would be hard to integrate when using multiple sources or sinks.

Thanks in advance.

AnotherDaniel commented 9 months ago

Hi @jardleex , that is a great idea actually! I will look into that, will let you know once I have something. Should you get to it first, PRs are always welcome ;-)

AnotherDaniel commented 9 months ago

Alright - we have smahub v1.5.4, check it out - brings auto-reconnect for the MQTT sink plugin, with a currently hard-coded max wait time (5 mins) and exponential back-off. If necessary, these parameters might be made configurable...

jardleex commented 9 months ago

Thanks for the quick handling! I had to perform docker updated today and thus restart all my containers incl. iobroker (mqtt broker). It seemed to have worked better this time. May it be possible to get a log output when smahub lost it's connection to any source/sink? This would allow troubleshooting after an incident to find out when a connection was lost. For example evcc also logs that in his stdtout and attempts a reconnect each X minutes/seconds and also prints that on stdout. Maybe put that behind SMAHUB_VERBOSE: true, maybe not everybody want's to see this.

AnotherDaniel commented 9 months ago

You will get some debug output on connection loss/reconnect with the 'verboser' mode (-V) - but I can see that you might want reconnect info without the other big-V clutter, so fair point. Did the change, new release might take a couple of days while I look at the tls request.

AnotherDaniel commented 9 months ago

Update: v1.5.5 released, includes log-level adjustments to the reconnect output.

jardleex commented 9 months ago

Awesome works great, thank you! I just stopped the MQTT instance in my iobroker and got the expected output in smahub.

2024-02-07 07:37:35 INFO     SHM2 plugin disabled
2024-02-07 07:37:35 INFO     Starting Tripower X source
2024-02-07 07:37:35 INFO     EV Charger plugin disabled
2024-02-07 07:37:35 INFO     demo source plugin disabled
2024-02-07 07:37:35 INFO     Starting MQTT sink
2024-02-07 07:37:35 INFO     HA-MQTT sink plugin disabled
2024-02-07 07:37:35 INFO     gen_ha_sensors sink plugin disabled
2024-02-07 07:37:35 INFO     demo sink plugin disabled
2024-02-07 07:37:35 INFO     Connected to MQTT Broker
2024-02-07 07:38:11 WARNING  Disconnected from MQTT Broker
2024-02-07 07:38:12 WARNING  Disconnected from MQTT Broker
2024-02-07 07:38:12 WARNING  Attempting to reconnect to MQTT Broker...
2024-02-07 07:38:12 WARNING  Reconnected to the MQTT broker
2024-02-07 07:38:14 WARNING  Disconnected from MQTT Broker
2024-02-07 07:38:14 WARNING  Attempting to reconnect to MQTT Broker...
2024-02-07 07:38:14 WARNING  Reconnected to the MQTT broker
2024-02-07 07:38:18 WARNING  Disconnected from MQTT Broker
2024-02-07 07:38:18 WARNING  Attempting to reconnect to MQTT Broker...
2024-02-07 07:38:18 WARNING  Reconnected to the MQTT broker
2024-02-07 07:38:26 INFO     Connected to MQTT Broker