Hi, I'm using ovs-vswitchd (Open vSwitch) 2.13.3 (latest LTS) and the latest git clone of Ryu from https://github.com/faucetsdn/ryu, when installing Ryu it has a python dependency on ovs 2.13.3 so I assume the ovs python package installed is matching the OVS version I'm using.
I'm trying to use Ryu as the OVSDB manager from a basic empty setup, the example from this page: https://ryu.readthedocs.io/en/latest/library_ovsdb_manager.html. I'm starting OVS this way: # ovs-ctl start --system-id=random --delete-bridges # ovs-vsctl set-manager tcp:127.0.0.1:6640 Inside my Ryu application I'm getting an exception after receiving the connection from OVS: New connection from 127.0.0.1:46354 hub: uncaught exception: Traceback (most recent call last): File "/usr/lib/python3.8/site-packages/ryu/lib/hub.py", line 60, in _launch return func(*args, **kwargs) File "/usr/lib/python3.8/site-packages/ryu/services/protocols/ovsdb/manager.py", line 145, in _start_remote app = client.RemoteOvsdb.factory(sock, client_address, File "/usr/lib/python3.8/site-packages/ryu/services/protocols/ovsdb/client.py", line 325, in factory system_id = discover_system_id(idl) File "/usr/lib/python3.8/site-packages/ryu/services/protocols/ovsdb/client.py", line 126, in discover_system_id idl.run() File "/usr/lib/python3.8/site-packages/ovs/db/idl.py", line 256, in run self.__send_server_schema_request() * File "/usr/lib/python3.8/site-packages/ovs/db/idl.py", line 583, in __send_server_schema_request "get_schema", [self._server_db_name, str(self.uuid)])AttributeError: 'Idl' object has no attribute '_server_db_name'* I don't know much about all of this IDL stuff but the Idl class from ovs/db/idl.py can't find an attribute that is defined inside the __init__() (https://github.com/openvswitch/ovs/search?q=_server_db_name) I don't know who else might be manipulating this object but even knowing it wouldn't be working I tried to just redefine self._server_db_name = '_Server' inside __send_server_schema_request(), but then it keeps blowing up on other attributes like self._server_db_table = 'Database'... Something I've done wrong? I've tried a different order of startup (e.g. Ryu manager before and after OVS), it's always blowing up after the connection event. Cheers, Jonathan
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