Hi,
I'm planning to convert my code to ROS2 Galactic. So i installed on all my machines ROS2 Galactic beside Foxy.
Now I have a problem only on one PC:
After sourcing ROS2 Galactic setup.bash file, all ROS2 stuff was corruptet e.g.
the command
$ ros2 node listdidn't show any entries and did not exit the command.Nodes can be started with
$ ros2 run demo_nodes_cpp talkerbut after interrupt withCTRL+Cthe process did not finish. I have to pressCTRL+Zto get back to the command line (see log below)user@towerpc:~$ ros2 run demo_nodes_cpp talker [INFO] [1632818912.115210752] [talker]: Publishing: 'Hello World: 1' [INFO] [1632818913.115177171] [talker]: Publishing: 'Hello World: 2' [INFO] [1632818914.115188251] [talker]: Publishing: 'Hello World: 3' [INFO] [1632818915.115207054] [talker]: Publishing: 'Hello World: 4' ^C[INFO] [1632818915.232758595] [rclcpp]: signal_handler(signal_value=2) ^Z [3]+ Stopped ros2 run demo_nodes_cpp talkerrestarting daemon with
$ ros2 daemon stopstucks without any message and do not exit. After a while a timeout is raised:Traceback (most recent call last): File "/opt/ros/galactic/bin/ros2", line 11, in <module> load_entry_point('ros2cli==0.13.1', 'console_scripts', 'ros2')() File "/opt/ros/galactic/lib/python3.8/site-packages/ros2cli/cli.py", line 67, in main rc = extension.main(parser=parser, args=args) File "/opt/ros/galactic/lib/python3.8/site-packages/ros2cli/command/daemon.py", line 38, in main return extension.main(args=args) File "/opt/ros/galactic/lib/python3.8/site-packages/ros2cli/verb/daemon/stop.py", line 29, in main with DaemonNode(args) as daemon: File "/opt/ros/galactic/lib/python3.8/site-packages/ros2cli/node/daemon.py", line 116, in __enter__ methods = self._proxy.system.listMethods() File "/usr/lib/python3.8/xmlrpc/client.py", line 1109, in __call__ return self.__send(self.__name, args) File "/usr/lib/python3.8/xmlrpc/client.py", line 1450, in __request response = self.__transport.request( File "/usr/lib/python3.8/xmlrpc/client.py", line 1153, in request return self.single_request(host, handler, request_body, verbose) File "/usr/lib/python3.8/xmlrpc/client.py", line 1165, in single_request http_conn = self.send_request(host, handler, request_body, verbose) File "/usr/lib/python3.8/xmlrpc/client.py", line 1278, in send_request self.send_content(connection, request_body) File "/usr/lib/python3.8/xmlrpc/client.py", line 1308, in send_content connection.endheaders(request_body) File "/usr/lib/python3.8/http/client.py", line 1247, in endheaders self._send_output(message_body, encode_chunked=encode_chunked) File "/usr/lib/python3.8/http/client.py", line 1007, in _send_output self.send(msg) File "/usr/lib/python3.8/http/client.py", line 947, in send self.connect() File "/usr/lib/python3.8/http/client.py", line 918, in connect self.sock = self._create_connection( File "/usr/lib/python3.8/socket.py", line 808, in create_connection raise err File "/usr/lib/python3.8/socket.py", line 796, in create_connection sock.connect(sa) TimeoutError: [Errno 110] Connection timed out
All my packages are up to date and only on this PC exists this problem. But I need this PC for Continuous Integration. This PC works on Ubuntu 20.04 (64-bit) with kernel Linux 5.11.0-36-generic. I have installed Galactic via $ apt install ros-galactic-desktop.
I am sourcing all ROS environments via a Bash script, so I can guarantee, that I source ROS2 always on all PCs the same way.
if someone has an idea, how can i fix this, pls let me know.
Originally posted by lmiller on ROS Answers with karma: 219 on 2021-09-28
Post score: 0
Original comments
Comment by gvdhoorn on 2021-09-28:
Just to make sure: ctrl+z suspends, it does not terminate. Are you killing the processes you've suspended?
Comment by lmiller on 2021-09-28:
Yes I killed the processes after suspending.
Comment by lmiller on 2021-09-28:
found out that UFW blocked something.
with disabled UFW everything workes fine.
Which rule do I need for my UFW with default ROS2 settings?