On Thu, 23 Oct 2014 10:58:24 -0400 A G <[email protected]> wrote: > Will using the ryu.base.app_manager."My App Name".reply_to_request(*req*, > *rep*) ensure that the application that I've written is still running?
Not. Applications are connected with queue. So sending a request means just putting a request message to another application's queue. > - If it does ensure that it is still running > - Will it block the framework from responding to echo requests from a > switch? > - Can someone please provide an example of how I would set up an > application to use this request and reply_to_request methods? > - My application received a packet that was attempted to be parsed as an > LLC packet but failed somewhere > > 2014-10-13 17:32:54102 ERROR ryu.lib.hub hub: uncaught exception: Traceback > (most recent call last): > File "/usr/lib/python2.6/site-packages/ryu/lib/hub.py", line 52, in > _launch > func(*args, **kwargs) > File "/usr/lib/python2.6/site-packages/ryu/base/app_manager.py", line > 274, in _event_loop > handler(ev) > File "/home/alex/ryu/ryu/app/simple_switch_HP-9-16-2014.py", line 91, in > _packet_in_handler > pkt = packet.Packet(msg.data) > File "/usr/lib/python2.6/site-packages/ryu/lib/packet/packet.py", line > 45, in __init__ > self._parser(parse_cls) > File "/usr/lib/python2.6/site-packages/ryu/lib/packet/packet.py", line > 51, in _parser > proto, cls, rest_data = cls.parser(rest_data) > File "/usr/lib/python2.6/site-packages/ryu/lib/packet/llc.py", line 153, > in parser > control, information = ctrl.parser(buf[cls._PACK_LEN:]) > File "/usr/lib/python2.6/site-packages/ryu/lib/packet/llc.py", line 253, > in parser > assert (control >> 12) & 0b1111 == 0 > AssertionError Our llc library's bug or your packet is corrupted. Can you send a pcap file of llc packets on your env? As I wrote in another thread, our packet library should not crash with any packets though. > As a result this killed my switching application but the underlying > framework was still running. In any event that the switching application > dies, I'd like for the framework to also stop. I understand that the root > cause should fixed too. But I'd like for a mechanism to stop the framework > so that my physical switches will enter into the fail-standalone mode. When your application catches fatal exceptions, calling sys.exit() stops the framework too? ------------------------------------------------------------------------------ _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
