Error Message: HttpUtil:233 ] - Fatal transport error: java.net.ConnectException

Setup, Configuration and Use Beginners
1

Hi,

i am currently experiening the above/ below mentioned error within OH log file. I am a bit lost where this one is coming from - as the only thing i did was running apt-get update/ upgrade on RPi.

Currently running on rPI A with OH Version 1.7.0 - only 1.8 binding is the WEMO binding.

12:16:01.046 [INFO ] [.httpclient.HttpMethodDirector:439  ] - I/O exception (java.net.ConnectException) caught when processing request: Verbindungsaufbau abgelehnt
12:16:01.051 [INFO ] [.httpclient.HttpMethodDirector:445  ] - Retrying request
12:16:01.059 [INFO ] [.httpclient.HttpMethodDirector:439  ] - I/O exception (java.net.ConnectException) caught when processing request: Verbindungsaufbau abgelehnt
12:16:01.068 [INFO ] [.httpclient.HttpMethodDirector:445  ] - Retrying request
12:16:01.079 [INFO ] [.httpclient.HttpMethodDirector:439  ] - I/O exception (java.net.ConnectException) caught when processing request: Verbindungsaufbau abgelehnt
12:16:01.086 [INFO ] [.httpclient.HttpMethodDirector:445  ] - Retrying request
12:16:01.093 [ERROR] [g.openhab.io.net.http.HttpUtil:233  ] - Fatal transport error: java.net.ConnectException: Verbindungsaufbau abgelehnt

Anyone could assist with this error message?

thanks
Karsten

2

Hi again,

still no one able to assist with this error message? It results in failure / non running of rules as well.

thanks
Karsten

3

I’m assuming “Verbindungsaufbau abgelehnt” is the same as “Connection refused” in English, which usually means that something is trying to connect to a remote port that isn’t listening. For example, if a server myweather.com is online but not running a web server on port 80, and you try to go to http://myweather.com, the client would get a “Connection refused” error.

So I recommend looking through your items and rules, looking for any configuration that might be referencing a server that is not serving (listening on a port) the kind of request openHAB is making. You could also edit your logback.xml file to use DEBUG logging as default instead of INFO, or run the start_debug.sh script to start openHAB in debug mode. The context of messages around the ERROR messages you reported above might help explain what code is causing Connection refused.

4

Hi @watou

yep sorry for missing the translation :smile:

i put already TRACE to HTTP bindinging into the logback but it doesnt show more than this. 3 times connection try - but not to where … not shown. Above is only messages from the start_debug.sh logging,

really nothing more shown.

5

I suspect it may be a binding, so either check the hosts and ports defined in your openhab.cfg, or comment out the configuration, binding by binding, to see which one it might be.

6

To get more details, add this to your logback[_debug].xml file. It’ll let you see what’s going on below the openHAB layers:

<logger name="org.apache.http" level="TRACE" />

I enabled this in my system to capture the cause of some “No route to host” type errors that occur every few days.