51 lines
2.2 KiB
Markdown
51 lines
2.2 KiB
Markdown
---
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layout: tutorial-beginner
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---
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{% include base.html %}
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# Looking to the logs
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While using openHAB, you may need to look at the logs generated by the software to see if there are any issues that need your attention.
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Two log files are going to interest us which are openhab.log and events.log
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The events.log file contains what is happening on the Openhab event bus like sensors changing states, very handy for writting rules as you can see things changing in realtime.
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The other file openhab.log shows the output of all bindings and addons and allows you to fault find issues with a binding.
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Before asking for help on the forum, it is worth checking openhab.log for clues as to what is causing any issues as this will result in getting help much faster.
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To watch the logs in realtime with a openhabian based setup use the below linux command which can be done via SSH with a program called putty from a windows or mac machine.
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CTRL+C will close the stream.
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You can also use SAMBA/network shares to open or copy the file directly.
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```text
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tail -f /var/log/openhab2/openhab.log -f /var/log/openhab2/events.log
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```
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Bindings can have the level of detail increased or decreased on a per binding basis and this is done with the Karaf console.
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To find them if you are not using Openhabian:
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- open the finder,
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- navigate to your home folder,
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- navigate inside the openHAB folder,
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- navigate inside the userdata folder,
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- navigate inside the logs folder
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<!--  -->
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- Inside the logs folder, double-click on the `openhab.log` file. The file will be displayed inside the console application.
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<!--  -->
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The console will display the messages as soon as they will be logged.
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Keep this window somewhere in order to take a look inside when it is needed.
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We will use it to check the Z-Wave dialogs.
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A "clean" startup looks this way in the log file :
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```java
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2016-05-09 21:29:33.195 [INFO ] [arthome.ui.paper.internal.PaperUIApp] - Started Paper UI at /ui
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2016-05-09 21:29:33.252 [INFO ] [.dashboard.internal.DashboardService] - Started dashboard at /start
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2016-05-09 21:29:33.567 [INFO ] [ing.zwave.handler.ZWaveSerialHandler] - Serial port is initialized
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```
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