[nox-dev] Error on importing nox/netapps/monitoring.py

2011-12-29 Thread Dushyant Arora 
Hello, 

I have created a NOX application NOXSwitch.py which calls 
send_flow_stats_request() from the module monitoring.py. However I get the 
following ImportError:

1|nox|INFO:Starting nox_core 
(/home/openflow/noxcore/build/src/.libs/lt-nox_core)
2|nox|ERR:Cannot change the state of 'NOXSwitch' to INSTALLED:
'NOXSwitch' ran into an error:
        cannot import a Python module 'nox.coreapps.examples.NOXSwitch':
        Traceback (most recent call last):
          File ./nox/coreapps/examples/NOXSwitch.py, line 37, in module
            from nox.netapps.monitoring.monitoring import Monitoring
          File ./nox/netapps/monitoring/monitoring.py, line 33, in module
            from nox.coreapps.messenger.pyjsonmsgevent import JSONMsg_event
          File ./nox/coreapps/messenger/pyjsonmsgevent.py, line 25, in 
module
            _pyjsonmsgevent = swig_import_helper()
          File ./nox/coreapps/messenger/pyjsonmsgevent.py, line 21, in 
swig_import_helper
            _mod = imp.load_module('_pyjsonmsgevent', fp, pathname, description)
        ImportError: ./nox/coreapps/messenger/_pyjsonmsgevent.so: undefined 
symbol: vigil::JSONMsg_event::JSONMsg_event(vigil::core_message const*)

How do I correct this?

I am trying to follow this earlier thread: 
http://noxrepo.org/pipermail/nox-dev/2011-November/008246.html

Thanks,

Dushyant
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Re: [nox-dev] Error on importing nox/netapps/monitoring.py

2011-12-29 Thread Murphy McCauley 
Are you also running the monitoring component, either on the commandline before 
your component or by adding it as a dependency in your component's meta.json?

-- Murphy

On Dec 29, 2011, at 10:25 PM, Dushyant Arora wrote:

 Hello, 
 
 I have created a NOX application NOXSwitch.py which calls 
 send_flow_stats_request() from the module monitoring.py. However I get the 
 following ImportError:
 
 1|nox|INFO:Starting nox_core 
 (/home/openflow/noxcore/build/src/.libs/lt-nox_core)
 2|nox|ERR:Cannot change the state of 'NOXSwitch' to INSTALLED:
 'NOXSwitch' ran into an error:
 cannot import a Python module 'nox.coreapps.examples.NOXSwitch':
 Traceback (most recent call last):
   File ./nox/coreapps/examples/NOXSwitch.py, line 37, in module
 from nox.netapps.monitoring.monitoring import Monitoring
   File ./nox/netapps/monitoring/monitoring.py, line 33, in module
 from nox.coreapps.messenger.pyjsonmsgevent import JSONMsg_event
   File ./nox/coreapps/messenger/pyjsonmsgevent.py, line 25, in 
 module
 _pyjsonmsgevent = swig_import_helper()
   File ./nox/coreapps/messenger/pyjsonmsgevent.py, line 21, in 
 swig_import_helper
 _mod = imp.load_module('_pyjsonmsgevent', fp, pathname, 
 description)
 ImportError: ./nox/coreapps/messenger/_pyjsonmsgevent.so: undefined 
 symbol: vigil::JSONMsg_event::JSONMsg_event(vigil::core_message const*)
 
 How do I correct this?
 
 I am trying to follow this earlier thread: 
 http://noxrepo.org/pipermail/nox-dev/2011-November/008246.html
 
 Thanks,
 
 Dushyant
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Re: [nox-dev] Error on importing nox/netapps/monitoring.py

2011-12-29 Thread Dushyant Arora 
No.

- Dushyant
On Fri, Dec 30, 2011 at 2:16 AM, Murphy McCauley  jam...@nau.edu  wrote: 


Are you also running the monitoring component, either on the commandline before 
your component or by adding it as a dependency in your component's meta.json? 

-- Murphy 




On Dec 29, 2011, at 10:25 PM, Dushyant Arora wrote: 

 Hello, 
 
 I have created a NOX application NOXSwitch.py which calls 
 send_flow_stats_request() from the module monitoring.py. However I get the 
 following ImportError: 
 
 1|nox|INFO:Starting nox_core 
 (/home/openflow/noxcore/build/src/.libs/lt-nox_core) 
 2|nox|ERR:Cannot change the state of 'NOXSwitch' to INSTALLED: 
 'NOXSwitch' ran into an error: 
 cannot import a Python module 'nox.coreapps.examples.NOXSwitch': 
 Traceback (most recent call last): 
 File ./nox/coreapps/examples/NOXSwitch.py, line 37, in module 
 from nox.netapps.monitoring.monitoring import Monitoring 
 File ./nox/netapps/monitoring/monitoring.py, line 33, in module 
 from nox.coreapps.messenger.pyjsonmsgevent import JSONMsg_event 
 File ./nox/coreapps/messenger/pyjsonmsgevent.py, line 25, in module 
 _pyjsonmsgevent = swig_import_helper() 
 File ./nox/coreapps/messenger/pyjsonmsgevent.py, line 21, in 
 swig_import_helper 
 _mod = imp.load_module('_pyjsonmsgevent', fp, pathname, description) 
 ImportError: ./nox/coreapps/messenger/_pyjsonmsgevent.so: undefined symbol: 
 vigil::JSONMsg_event::JSONMsg_event(vigil::core_message const*) 
 
 How do I correct this? 
 
 I am trying to follow this earlier thread: 
 http://noxrepo.org/pipermail/nox-dev/2011-November/008246.html 
 
 Thanks, 
 
 Dushyant 
 ___ 
 nox-dev mailing list 
 nox-dev@noxrepo.org 
 http://noxrepo.org/mailman/listinfo/nox-dev 


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Re: [nox-dev] Error on importing nox/netapps/monitoring.py

2011-12-29 Thread Dushyant Arora 
I added monitoring to the dependency list of my component and I no longer get 
an ImportError. Thanks Murphy!

- Dushyant

- Original Message -
From: Murphy McCauley jam...@nau.edu
To: Dushyant Arora dushyantaror...@gmail.com
Cc: Dushyant Arora dushy...@cs.princeton.edu, nox-dev@noxrepo.org
Sent: Friday, December 30, 2011 2:24:57 AM
Subject: Re: [nox-dev] Error on importing nox/netapps/monitoring.py

You should. If your component interacts with the monitoring component, you 
should be running the monitoring component -- your component is dependent on 
it. 


The proper way to do this is to add monitoring to the list of dependencies in 
your component's meta.json. As a shortcut, you can just specify monitoring on 
the commandline along the lines of: ./nox_core monitoring NOXSwitch 


Hope that helps. 


-- Murphy 




On Dec 29, 2011, at 11:18 PM, Dushyant Arora wrote: 


No. 


On Fri, Dec 30, 2011 at 2:16 AM, Murphy McCauley  jam...@nau.edu  wrote: 


Are you also running the monitoring component, either on the commandline before 
your component or by adding it as a dependency in your component's meta.json? 

-- Murphy 




On Dec 29, 2011, at 10:25 PM, Dushyant Arora wrote: 

 Hello, 
 
 I have created a NOX application NOXSwitch.py which calls 
 send_flow_stats_request() from the module monitoring.py. However I get the 
 following ImportError: 
 
 1|nox|INFO:Starting nox_core 
 (/home/openflow/noxcore/build/src/.libs/lt-nox_core) 
 2|nox|ERR:Cannot change the state of 'NOXSwitch' to INSTALLED: 
 'NOXSwitch' ran into an error: 
 cannot import a Python module 'nox.coreapps.examples.NOXSwitch': 
 Traceback (most recent call last): 
 File ./nox/coreapps/examples/NOXSwitch.py, line 37, in module 
 from nox.netapps.monitoring.monitoring import Monitoring 
 File ./nox/netapps/monitoring/monitoring.py, line 33, in module 
 from nox.coreapps.messenger.pyjsonmsgevent import JSONMsg_event 
 File ./nox/coreapps/messenger/pyjsonmsgevent.py, line 25, in module 
 _pyjsonmsgevent = swig_import_helper() 
 File ./nox/coreapps/messenger/pyjsonmsgevent.py, line 21, in 
 swig_import_helper 
 _mod = imp.load_module('_pyjsonmsgevent', fp, pathname, description) 
 ImportError: ./nox/coreapps/messenger/_pyjsonmsgevent.so: undefined symbol: 
 vigil::JSONMsg_event::JSONMsg_event(vigil::core_message const*) 
 
 How do I correct this? 
 
 I am trying to follow this earlier thread: 
 http://noxrepo.org/pipermail/nox-dev/2011-November/008246.html 
 
 Thanks, 
 
 Dushyant 
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 nox-dev mailing list 
 nox-dev@noxrepo.org 
 http://noxrepo.org/mailman/listinfo/nox-dev 



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