Openhab2 and MQTT connected but doesn't work together

Weird stuff going on. I have a couple of servers successfully running with similar config. But this one is killing me.
openhab 2.3.0

mqtt-eventbus.config

broker="broker"
commandPublishTopic="home/openHAB/out/${item}/command"
service.pid="org.openhab.mqtt-eventbus"
statePublishTopic="home/openHAB/state/${item}/state"
stateSubscribeTopic="home/openHAB/in/${item}/state"

openhab.log

2018-07-05 09:46:27.070 [INFO ] [.dashboard.internal.DashboardService] - Started Dashboard at http://192.168.199.201:8080
2018-07-05 09:46:27.110 [INFO ] [.dashboard.internal.DashboardService] - Started Dashboard at https://192.168.199.201:8443
2018-07-05 09:46:28.201 [INFO ] [arthome.ui.paper.internal.PaperUIApp] - Started Paper UI at /paperui
2018-07-05 09:46:28.814 [INFO ] [penhab.io.transport.mqtt.MqttService] - MQTT Service initialization completed.
2018-07-05 09:46:28.817 [INFO ] [t.mqtt.internal.MqttBrokerConnection] - Starting MQTT broker connection 'broker'

mosquitto.log

1530783794: Config loaded from /etc/mosquitto/mosquitto.conf.
1530783794: Opening ipv4 listen socket on port 1883.
1530783794: Opening ipv6 listen socket on port 1883.
1530783809: New connection from 192.168.199.25 on port 1883.
1530783809: New client connected from 192.168.199.25 as Device1Bathroom (c1, k15, u'openhab').
1530783838: New connection from 192.168.199.192 on port 1883.
1530783838: New client connected from 192.168.199.192 as Device1Kitchen (c1, k15, u'openhab').
1530783842: New connection from 192.168.199.176 on port 1883.
1530783842: New client connected from 192.168.199.176 as Device2Bedroom (c1, k15, u'openhab').
1530783843: New connection from 192.168.199.103 on port 1883.
1530783843: New client connected from 192.168.199.103 as Device1Bedroom (c1, k15, u'openhab').
1530783848: New connection from 192.168.199.199 on port 1883.
1530783848: New client connected from 192.168.199.199 as Device2Kitchen (c1, k15, u'openhab').
1530783854: New connection from 127.0.0.1 on port 1883.
1530783854: New client connected from 127.0.0.1 as openhab (c1, k60, u'openhab').

all seems fine, but openhab doesn’t get info from the mqtt and vice versa…

MQTT ir running ok - I see data from connected devices…

Are both oh systems using same MQTT client Id? That causes issues. Certainly makes debug difficult

… and the commandSubscribeTopic config parameter is missing:

I never used before commandSubscribeTopic, added it, no changes…
And where can I check MQTT client Id?

check your services\mqtt.cfg and look for

broker.clientId=clientId

broker.clientId=“openhab”
same everywhere

try to change it to unique values, like ‘openhab1’ ‘openhab2’ …

Only a typo here? Should be mqtt-eventbus.cfg

1 Like

not a typo… he is wrongly modifying the userdata version of the config file :slight_smile: (you can identify this from the quotes)

@AlexSmart use the OPENHAB_CONF/services/mqtt.cfg & mqtt-eventbus.cfg files (not the userdata .config ones)

Tried both ways…

You shouldn’t change files in userdata (except you are aware of the consequences and really know what you are doing). Maybe you messed up your openHAB.

Maybe. I reinstall Openhab, and got the same issue. I always changed a /etc/openhab2/services/mqtt-eventbus.cfg And only after facing this problem I started to play with /var/lib/openhab2/config/org/openhab/mqtt-eventbus.config

I managed to get this working. What I did is remove completely openhab, mosquitto and java. Then, installed zulu embedded, as it recommended by openhab and then installed openhab and mosquitto. Magic or stupidity?

btw, I had to reinstall openhab2 one more time. After first reinstallation it didnt started (status said: running) and openhab.log file contained this:

Jul 08, 2018 7:42:52 AM org.apache.karaf.main.Main launch
INFO: Installing and starting initial bundles

Jul 08, 2018 7:42:55 AM org.apache.karaf.main.Main launch
INFO: All initial bundles installed and set to start

Jul 08, 2018 7:42:55 AM org.apache.karaf.main.lock.SimpleFileLock lock
INFO: Trying to lock /var/lib/openhab2/tmp/lock

Jul 08, 2018 7:42:55 AM org.apache.karaf.main.lock.SimpleFileLock lock
INFO: Lock acquired

Jul 08, 2018 7:42:55 AM org.apache.karaf.main.Main$KarafLockCallback lockAquired
INFO: Lock acquired. Setting startlevel to 100

Jul 08, 2018 7:46:16 AM org.apache.karaf.main.lock.SimpleFileLock lock
INFO: Trying to lock /var/lib/openhab2/tmp/lock

Jul 08, 2018 7:46:16 AM org.apache.karaf.main.lock.SimpleFileLock lock
INFO: Lock acquired

Jul 08, 2018 7:46:16 AM org.apache.karaf.main.Main$KarafLockCallback lockAquired
INFO: Lock acquired. Setting startlevel to 100