Created question in FIWARE Q/A platform on 21-04-2015 at 10:04
Please, ANSWER this question AT https://stackoverflow.com/questions/29766900/i-cant-start-context-broker-due-to-error-starting-rest-interface

Question:
I cant start context broker due to "error starting REST interface"

Description:
When I enter the following command:

/etc/init.d/contextBroker start

I get the following output:

Starting contextBroker... cat: /var/run/contextBroker/contextBroker.pid: No such file or directory
pidfile not found [FAILED]

I have two machines where I am practising with context broker and I havent touched the second one in days after I succesfully installed it and managed to receive a post message from a remote weather station.
I see that the directory /var/run/contextBroker/ is actually empty

What should I do to fix this now? reinstal context broker or?
So is this somehow my fault and how do I prevent in the future? I dont want this happening when my app goes live.

EDIT1: the orion version is 0.20.0

EDIT2: I just reinstalled contextBroker and I get the same problem. What are exectly the contents of that directory? Could I maybe just create the files inside?

EDIT3: Since running contextBroker as a system service still yields an unsuccessful start, I also attempted to run it symply by typing:

contextBroker in the command line, after which I get the following response

INFO@14:03:03 contextBroker.cpp[1346]: Orion Context Broker is running
[root@localhost DevF12]# INFO@14:03:03 MongoGlobal.cpp[181]: Successful connection to database
INFO@14:03:03 contextBroker.cpp[1157]: Connected to mongo at localhost:orion
INFO@14:03:03 MongoGlobal.cpp[499]: Database Operation Successful (

)
FATAL@14:03:03 rest.cpp[1013]: Fatal Error (error starting REST interface)

EDIT4: Ok so I tried ps aux | grep contextBroker and the result is:

494 2196 0.0 7.0 688696 135116 ? Ssl Apr21 0:02 /usr/bin/contextBroker -port 1026 -logDir /var/log/contextBroker -pidpath /var/run/contextBroker/contextBroker.pid -dbhost localhost -db orion
root 7299 0.0 6.9 621052 134440 ? Ssl 04:21 0:00 contextBroker -port 1028
root 8870 0.0 0.0 103256 848 pts/0 S+ 08:51 0:00 grep contextBroker

but there simply isnt anything in /var/run/contextBroker/
Should I put contextBroker.pid by myself? and if so, what should the contents be?

EDIT5: I just ran netstat -ntlpd | grep 1026 and the output is:

tcp 0 0 0.0.0.0:1026 0.0.0.0:* LISTEN 2196/contextBroker
tcp 0 0 :::1026 :::* LISTEN 2196/contextBroker

So I guess nothing else but contextBroker is listening?