[SOLVED] Mqtt Binding will not work after update to 2.4

Add-ons Bindings
1

Hello,
I made a apt-get update, now I have oH 2.4 running on my raspberry (this was not planned :wink: )

First the zwave parts are not working, I have removed and add them new, now they are working again.

But I can’t find the reason why the mqtt will not work.
The binding was not installed after the update, I install it.
I check the mqtt.cfg, this was the “old” one and has correct entries (same as before update).

On the Raspberry the MQTT signals are received from my switches etc (mosquito_sub …) as before , but oH will not “use” them. Also the mqtt-signals send from oH will not sended out (NOT vissible with mosquito:sub …).

What do I overlook? Must I add something else I forgot ?

Hint: Before the update I execute an “openhab-cli clean-cache” (oH stopped before, can this cause this issue now?)

Thx for help,
I’m shure this a “stupid” thing/error … because before mqtt works perfect and I use it everywhere !

(apt-get install mosquito mosquito-client show, that most actual version is already installed)
(mqtt.cfg hast also correct ownership (openhab:openhab, 664)

2

This was documented here and mentioned in the release notes for OH 2.4 as a breaking change.

Which version did you install? There is now a 2.4 version of the MQTT binding which is completely different from the old 1.x version. Unfortunately, depending on your settings, the upgrade replaced the old MQTT 1 binding with the new MQTT 2 binding because the MQTT 1 binding is now legacy.

See

If you want to stay with the MQTT 1 binding for now, you need to make sure you have enabled “Show legacy 1.x version bindings” and install it.

3

Thanks Rich,

thats what installed on the Raspberry:

libmosquitto1/stable,now 1.4.10-3+deb9u2 armhf [installed,automatic]
mosquitto/stable,now 1.4.10-3+deb9u2 armhf [installed]
mosquitto-clients/stable,now 1.4.10-3+deb9u2 armhf [installed]

And after enabling the show-legacy-bindings, I see in the Paper-UI=>add-ons, that now I have both installed; the binding-mqtt1 - 1.13.0 and the 2.4.0 (and I’m sure before enabling the legacy-binding-option I had not seen any MQTT Binding: This was the reason to install the provided one (and I see only 2.4.0))

Strange for me that I now see MQTT versions 1.13.0 and 2.4.0 in the Add-ons.

Actuall I think i will use the version as before, I install it 3 month ago (with oH 2.3: Was it than 1.1.3 or already 2.4 ?)

Next steps: De-install 2.4, and than the already existed 1.1.3 will work?

4

Both can remain installed side by side. Leave the 2.4 one installed and at your leisure start to migrate to using the 2.4 binding.

5

I de-install the 2.4 binding, and immediately the MQTT messages arrives (without doing anything else!).

I think I will wait with the update7usage from 2.4.

Thanks again for help!