Installed the MQTT Binding, but no mqtt.cfg file

I don’t have any suggestions at the moment…
Also, since your java -version is showing Oracle, then your system is configured to use it as default (you can check with update-alternatives --config java)

Maybe try to start OH2 in debug mode: /usr/share/openhab2/ to see if something useful is posted?

Started debug mode … there is now an events.log and openhab.log. Viewing events.log shows an empty file, however openhab.log has a few entries.

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    2017-06-20 01:14:34.278 [WARN ] [tty.util.component.AbstractLifeCycle] - FAILED{SSL-http/1.1}{}: Address already in use Address already in use
at Method)[:1.8.0_131]
at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(
at org.eclipse.jetty.server.ServerConnector.doStart(
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(
at org.eclipse.jetty.server.Server.doStart(
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(
at org.ops4j.pax.web.service.jetty.internal.JettyServerImpl$1.start(
at org.ops4j.pax.web.service.internal.HttpServiceStarted.registerServlet(
at org.ops4j.pax.web.service.internal.HttpServiceStarted.registerServlet(
at org.ops4j.pax.web.service.internal.HttpServiceStarted.registerServlet(
at org.ops4j.pax.web.service.internal.HttpServiceProxy.registerServlet(
at org.openhab.ui.dashboard.internal.DashboardService.activate(
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.8.0_131]
at sun.reflect.NativeMethodAccessorImpl.invoke([:1.8.0_131]
at sun.reflect.DelegatingMethodAccessorImpl.invoke([:1.8.0_131]
at java.lang.reflect.Method.invoke([:1.8.0_131]
at org.apache.felix.scr.impl.inject.BaseMethod.invokeMethod([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.inject.BaseMethod.access$500([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.inject.BaseMethod$Resolved.invoke([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.inject.BaseMethod.invoke([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.inject.ActivateMethod.invoke([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.inject.ActivateMethod.invoke([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.SingleComponentManager.createImplementationObject([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.SingleComponentManager.createComponent([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.SingleComponentManager.getService([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.SingleComponentManager.getServiceInternal([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.DependencyManager$SingleStaticCustomizer.addedService([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.DependencyManager$SingleStaticCustomizer.addedService([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.customizerAdded([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.customizerAdded([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.ServiceTracker$AbstractTracked.trackAdding([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.ServiceTracker$AbstractTracked.track([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.serviceChanged([32:org.apache.felix.scr:2.0.6]
at org.apache.felix.scr.impl.BundleComponentActivator$ListenerInfo.serviceChanged([32:org.apache.felix.scr:2.0.6]
at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged([org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent([org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent([org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous([org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged([org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent([org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register([org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService([org.eclipse.osgi-3.10.101.v20150820-1432.jar:]


# openHAB 2 service configuration
# Additional options for the JAVA_OPTS environment variable.
# These will be appended to the execution of the openHAB Java runtime in front of all other options.
# A couple of independent examples:
#   EXTRA_JAVA_OPTS="-Djna.library.path=/lib/arm-linux-gnueabihf/ -Duser.timezone=Europe/Berlin"

# The ports openHAB will bind its HTTP/HTTPS web server to.

No comments, just the EXTRA_JAVA_OPTS="" line.

The server is defaulted to port 8080, but I could add the line to change that.

maybe tomcat with ssl is installed?
check what process is using tcp 8443

lsof -i:8443
netstat -nlp|grep 8443

yeah, add the 2 lines to change the default ports that OH2 will listen to


Ps: The extra comments were added in the file during a recent snapshot (I think S#947)

On the other hand… that’s only a warning… (that OH2 couldn’t bring up its https interface)
You were able to run PaperUI on 8080 (so that was free) and install the MQTT binding…
so… something else is wrong…
anyway… fix the 8443 port issue and continue debugging :slight_smile:

Ok … tomcat8 is now installed and the service is running … attempted to install MQTT Binding via PaperUI, still no go.

Here’s something, though … so I appended the two additional lines for ports 8081 and 8444, saved the file, restarted services, and both ports 8080 and 8443 are still active, and 8081/8444 don’t do a thing.

BTW … I appreciate you taking the time with me this early in the morning.

1 Like

you don’t need tomcat. I asked if it was installed to see if that process was taking up tcp 8443 (that would cause the warning {}: Address already in use)
If you stop OH2 service: do you see any other process using tcp 8443?

ok… strange… :frowning:
I have to check if there is any difference for Ubuntu (I use Debian)…
it should have worked :stuck_out_tongue:

Any other useful info in the openhab.log when you start the service using

I am not sure if will use /etc/defaults/openhab2
Maybe try: systemctl start openhab2 to make sure that it will use the file

openhab services stopped … validated web interface no longer active on both 8080 and 8443, and reports the same with lsof and netstat.

Started the service, only ports 8080 & 8443 are accessible.

FYI … I am maxed out on the number of entries I’m allowed to post, and the forum is blocking me from adding new replies for 22 hours.

cool … thx!

I’ll purge everything (not losing anything at the moment) and install the current snapshot to see if that helps, then will report.

Well … that didn’t work … after uninstalling and installing the snapshot, the service is now failing to start. :confused:

    root@TigieMontana:/etc/default# systemctl status openhab2.service
● openhab2.service - openHAB 2 - empowering the smart home
   Loaded: loaded (/usr/lib/systemd/system/openhab2.service; enabled; vendor preset: enabled)
   Active: inactive (dead) (Result: exit-code) since Tue 2017-06-20 02:31:44 MDT; 2s ago
  Process: 13096 ExecStop=/usr/share/openhab2/runtime/bin/stop (code=exited, status=3)
  Process: 12887 ExecStart=/usr/share/openhab2/ server (code=exited, status=255)
 Main PID: 12887 (code=exited, status=255)

Jun 20 02:31:44 TigieMontana systemd[1]: openhab2.service: Unit entered failed state.
Jun 20 02:31:44 TigieMontana systemd[1]: openhab2.service: Failed with result 'exit-code'.
Jun 20 02:31:44 TigieMontana systemd[1]: openhab2.service: Service hold-off time over, scheduling
Jun 20 02:31:44 TigieMontana systemd[1]: Stopped openHAB 2 - empowering the smart home.
Jun 20 02:31:44 TigieMontana systemd[1]: openhab2.service: Start request repeated too quickly.
Jun 20 02:31:44 TigieMontana systemd[1]: Failed to start openHAB 2 - empowering the smart home.

I think we have success!

                      __  _____    ____

____ ____ ___ ____ / / / / | / __ )
/ __ / __ / _ / __ / // / /| | / __ |
/ /
/ / // / __/ / / / __ / ___ |/ // /
_/ ./_// /// /// |/_____/
/_/ 2.1.0-SNAPSHOT
Build #958

Hit ‘’ for a list of available commands
and ‘[cmd] --help’ for help on a specific command.
Hit ‘’ or type ‘system:shutdown’ or ‘logout’ to shutdown openHAB.

openhab> log:tail
02:38:12.926 [INFO ] [.dashboard.internal.DashboardService] - Started dashboard at http://192.168 .1.29:8080
02:38:12.928 [INFO ] [.dashboard.internal.DashboardService] - Started dashboard at https://192.16 8.1.29:8443
02:39:06.997 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘package-expert’ has been installed.
02:39:09.536 [INFO ] [ui.habmin.internal.servlet.HABminApp] - Started HABmin servlet at /habmin
02:39:09.567 [INFO ] [arthome.ui.paper.internal.PaperUIApp] - Started Paper UI at /paperui
02:39:09.589 [INFO ] [assic.internal.servlet.WebAppServlet] - Started Classic UI at /classicui/app
02:39:09.664 [INFO ] [basic.internal.servlet.WebAppServlet] - Started Basic UI at /basicui/app
02:39:09.684 [INFO ] [panel.internal.HABPanelDashboardTile] - Started HABPanel at /habpanel
02:39:09.705 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘misc-restdocs’ has been installed.
02:39:09.706 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘transformation-javascript’ has been installed.
02:39:09.706 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘ui-habpanel’ has been installed.
02:39:09.707 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘transformation-regex’ has been installed.
02:39:09.708 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘transformation-jsonpath’ has been installed.
02:39:09.708 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘transformation-xpath’ has been installed.
02:39:09.709 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘ui-basic’ has been installed.
02:39:09.709 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘transformation-map’ has been installed.
02:39:09.710 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘ui-classic’ has been installed.
02:39:09.710 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘ui-habmin’ has been installed.
02:39:09.711 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘transformation-xslt’ has been installed.
02:39:09.711 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘transformation-exec’ has been installed.
02:39:09.711 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘ui-paper’ has been installed.
02:39:09.712 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘transformation-scale’ has been installed.
02:39:48.640 [INFO ] [smarthome.event.ExtensionEvent ] - Extension ‘binding-mqtt1’ has been installed.

root@TigieMontana:/etc/openhab2/services# ls
addons.cfg  mqtt.cfg  mqtt-eventbus.cfg  readme.txt  runtime.cfg

Checking the file now …

Woohoo! I think we got it. Interesting how the stable release was challenging, but the the current snapshot was the ticket. Oh well … its operational, which is great.

Thank you very much for your help walking through this. I really appreciate your time.

1 Like

then, no need to modify /etc/defaults/openhab2 file (since both 8080 and 8443 are free)

maybe the warning ({}: Address already in use) came because OH2 was re-started too fast (and port was kept occupied? (not sure))

Then I will be monitoring your last post for updates (edits) :slight_smile:

1 Like

I think that this was solved during a recent snapshot release (Issue)
If you want to be able to change the tcp ports on Ubuntu 16, you may need to use Snapshot release

You don’t have to, since it is not mandatory to change the ports in your system.

Anyway, I would recommend to switch to Snapshot to see if things improve.

Ps: after changing /etc/defaults/openhab2 (if needed), run also systemctl daemon-reload)

stop the service and try to see if /usr/share/openhab2/ gives any hints

check also: [SOLVED] "Failed to start The openHAB 2 Home Automation Bus Solution."

(might be relevant?)

You are welcome :slight_smile:

Try to clean up your openhab2.service also so it starts with systemctl
Maybe there is something left over from the first stable installation that doesn’t allow systemctl start openhab2 to work
after you check the file /usr/lib/systemd/system/openhab2.service for WorkingDirectory (/usr/share/openhab2) and ExecStart (/usr/share/openhab2/ server), do:

systemctl daemon-reload
systemctl enable openhab2
systemctl restart openhab2

Hi. I’m in a bit of a strange situation.I’ve installed Openhabian on my Raspberry and from Paper UI installed the MQTT Binding. The problem is, when i browse the services folder on my SD card the file mqtt.cfg is with .save extension. When i open the file with Visual Studion Code or nano the file is empty. I dont know how to configure my MQTT broker since the mqtt.cfg file is empty. If some could help it would be great!


An mqtt.cfg file would have been used with the version 1 mqtt binding.
With the version 2 binding you could install either the embedded mqtt broker or an external one like mosquitto.
Please read Here