Re: [Ryu-devel] Fwd: Event_Link_Delete triggering

[Taha Khan]

Thanks Iwase for taking time to fix the indentation error. I would try
autopep8, in my environment code was running for some reason.
Looks like the issue that I am having is not there in your environment.
I am using RYU-4.21, and OVS-2.5.2. May be i need to upgrade my setup.

Thanks!
Taha

On Sun, Mar 4, 2018 at 9:08 PM, Iwase Yusuke 
wrote:

> Hi Taha,
>
> I couldn't launch your Ryu application on my environment...
>
>
> (py27) $ ryu-manager shared_arp.py
> loading app shared_arp.py
> Traceback (most recent call last):
>   File "/home/iwase/ryu/.tox/py27/bin/ryu-manager", line 11, in 
> load_entry_point('ryu==4.23', 'console_scripts', 'ryu-manager')()
>   File 
> "/home/iwase/ryu/.tox/py27/local/lib/python2.7/site-packages/ryu/cmd/manager.py",
> line 98, in main
> app_mgr.load_apps(app_lists)
>   File 
> "/home/iwase/ryu/.tox/py27/local/lib/python2.7/site-packages/ryu/base/app_manager.py",
> line 415, in load_apps
> cls = self.load_app(app_cls_name)
>   File 
> "/home/iwase/ryu/.tox/py27/local/lib/python2.7/site-packages/ryu/base/app_manager.py",
> line 392, in load_app
> mod = utils.import_module(name)
>   File 
> "/home/iwase/ryu/.tox/py27/local/lib/python2.7/site-packages/ryu/utils.py",
> line 104, in import_module
> return importlib.import_module(modname)
>   File "/usr/lib/python2.7/importlib/__init__.py", line 37, in
> import_module
> __import__(name)
>   File "/home/iwase/ryu/shared_arp.py", line 171
> switch_list = get_switch(self.topology_api_app, None)
> ^
> IndentationError: unexpected indent
>
>
> I tried to fix this indentation error, similar errors ware shown.
> I recommend to sort out indentations. "autopep8" is very helpful!
>
> After my fixation, I couldn't reproduce the issue you mentioned.
> Ryu was running on the stable state as following.
>
>
> $ ryu-manager shared_arp.py
> loading app shared_arp.py
> loading app ryu.topology.switches
> loading app ryu.controller.ofp_handler
> instantiating app None of DPSet
> creating context dpset
> instantiating app ryu.topology.switches of Switches
> instantiating app shared_arp.py of SimpleSwitch14
> instantiating app ryu.controller.ofp_handler of OFPHandler
> dpid Join SW {6:  0x7f0b7293b2d0>}
> port state change event triggered
> Switch_Enter : 

Re: [Ryu-devel] Fwd: Event_Link_Delete triggering

[Iwase Yusuke]

Hi Taha,

I couldn't launch your Ryu application on my environment...


(py27) $ ryu-manager shared_arp.py
loading app shared_arp.py
Traceback (most recent call last):
  File "/home/iwase/ryu/.tox/py27/bin/ryu-manager", line 11, in 
load_entry_point('ryu==4.23', 'console_scripts', 'ryu-manager')()
  File 
"/home/iwase/ryu/.tox/py27/local/lib/python2.7/site-packages/ryu/cmd/manager.py", 
line 98, in main

app_mgr.load_apps(app_lists)
  File 
"/home/iwase/ryu/.tox/py27/local/lib/python2.7/site-packages/ryu/base/app_manager.py", 
line 415, in load_apps

cls = self.load_app(app_cls_name)
  File 
"/home/iwase/ryu/.tox/py27/local/lib/python2.7/site-packages/ryu/base/app_manager.py", 
line 392, in load_app

mod = utils.import_module(name)
  File 
"/home/iwase/ryu/.tox/py27/local/lib/python2.7/site-packages/ryu/utils.py", line 
104, in import_module

return importlib.import_module(modname)
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
  File "/home/iwase/ryu/shared_arp.py", line 171
switch_list = get_switch(self.topology_api_app, None)
^
IndentationError: unexpected indent


I tried to fix this indentation error, similar errors ware shown.
I recommend to sort out indentations. "autopep8" is very helpful!

After my fixation, I couldn't reproduce the issue you mentioned.
Ryu was running on the stable state as following.


$ ryu-manager shared_arp.py
loading app shared_arp.py
loading app ryu.topology.switches
loading app ryu.controller.ofp_handler
instantiating app None of DPSet
creating context dpset
instantiating app ryu.topology.switches of Switches
instantiating app shared_arp.py of SimpleSwitch14
instantiating app ryu.controller.ofp_handler of OFPHandler
dpid Join SW {6: }
port state change event triggered
Switch_Enter : 

Re: [Ryu-devel] Fwd: Event_Link_Delete triggering

[Taha Khan]

Hi Iwase,

Even I don't know, why is that happening.
When I added the separate handler for EventLinkDelete it is getting
triggered when I see no reason to for it to trigger.
I think there is a bug in EventLinkDelete handler.
You can reproduce it by running two files attached.
Could you please suggest what might be wrong here. It would be great lead .

Thanks!
Taha.


On Tue, Feb 27, 2018 at 11:45 PM, Iwase Yusuke 
wrote:

> Hi Taha,
>
> I couldn't investigate why, but on your attached log messages,
> "EventSwitchLeave" are shown. Datapath might be disconnected for some
> reason,
> then "EventLinkDelete" occurred.
>
> Thanks,
> Iwase
>
>
> On 2018年02月28日 00:13, Taha Khan wrote:
>
>>
>> Hi,
>>
>> I added EventLinkDelete in my code. And noticed EventLinkDelete is
>> getting triggered, while discovering the topology, although I am installing
>> flow rules in the switch those are getting installed successfully.
>> I am confused why the delete event is getting triggered at the first
>> place or should I ignore it.
>>
>> I am sending this email second time because I received HTTP error 550
>> earlier.
>>
>> Thanks!
>> Taha
>>
>>
>>
>> 
>> --
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Re: [Ryu-devel] Fwd: Event_Link_Delete triggering

[Iwase Yusuke]

Hi Taha,

I couldn't investigate why, but on your attached log messages,
"EventSwitchLeave" are shown. Datapath might be disconnected for some reason,
then "EventLinkDelete" occurred.

Thanks,
Iwase

On 2018年02月28日 00:13, Taha Khan wrote:


Hi,

I added EventLinkDelete in my code. And noticed EventLinkDelete is getting 
triggered, while discovering the topology, although I am installing flow rules 
in the switch those are getting installed successfully.
I am confused why the delete event is getting triggered at the first place or 
should I ignore it.


I am sending this email second time because I received HTTP error 550 earlier.

Thanks!
Taha



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