fkie/multimaster_fkie

[WARN] can't retrieve connection information using XMLRPC from [http://192.XXX.XXX.ae:11611], socket error: timed out

mericgeren opened this issue · 3 comments

mericgeren commented

Hello,

I am trying to do the same what i did there: #194 in WSL version 1. I have 2 computers:

Laptop

  • OS: Windows 10

  • WSL OS: Linux Ubuntu 20.04 (I am using this for ROS and multimaster)

  • WSL Version: 1

  • Connection Method: Wifi

  • IP Address: 192.XXX.XXX.ae (original ip of the laptop, same network with the other computers)

  • WSL IP Address: Same with the laptop.

  • ROS Distro: Noetic

  • ROS Parameters: Set in ".bashrc" and just like following:

export ROS_MASTER_URI=http://laptop-windows:11311

export ROS_HOSTNAME=laptop-windows

  • Multimaster: fkie_multimaster installed.

  • /etc/hosts:

127.0.0.1              localhost

127.0.1.1              laptop-windows.localdomain       laptop-windows

192.XXX.XXX.ae      laptop-windows

192.XXX.XXX.dc      pc-linux

PC

  • OS: Linux Ubuntu 18.04 (non-VM)

  • VM: None

  • Connection Method: Ethernet

  • IP Address: 192.XXX.XXX.dc (In the same network with the other computer)

  • ROS Distro: Melodic

  • ROS Parameters: Set in ".bashrc" and just like following:

export ROS_MASTER_URI=http://192.XXX.XXX.dc:11311

export ROS_IP=192.XXX.XXX.dc

  • Multimaster: fkie_multimaster installed.

  • /etc/hosts:

127.0.0.1              localhost

127.0.0.1              pc-linux

192.XXX.XXX.ab         laptop-linux

192.XXX.XXX.ae         laptop-windows    

192.XXX.XXX.dc         pc-linux

I can ping each from eachother both with ips and their hostnames without any errors or duplicates. Then i did rosrun fkie_master_discovery master_discovery _log_level:=DEBUG _robot_hosts:=['192.XXX.XXX.XXX'] send_mcast:=False listen_mcast:=False on both computers. This is the output in the laptop-windows:

[INFO] [1685535984.541164]: Check the ROS Master[Hz]: 1
[INFO] [1685535984.545838]: Heart beat [Hz]: 0.02
[INFO] [1685535984.549145]: Active request after [sec]: 60
[INFO] [1685535984.552254]: Remove after [sec]: 300
[INFO] [1685535984.556303]: Robot hosts: ['192.XXX.XXX.dc']
[INFO] [1685535984.559417]: Approx. mininum avg. network load: 2.72 bytes/s
[INFO] [1685535984.580044]: Start RPC-XML Server at ('0.0.0.0', 11611)
[INFO] [1685535984.586414]: hide_nodes: []
[INFO] [1685535984.592322]: hide_topics: []
[INFO] [1685535984.598337]: hide_services: []
[INFO] [1685535984.601438]: Subscribe to parameter `/roslaunch/uris`
[INFO] [1685535986.800580]: Detected master discovery: http://192.XXX.XXX.ae:11611
[INFO] [1685535987.680392]: Detected master discovery: http://192.XXX.XXX.dc:11611
[INFO] [1685535987.803892]: Added master with ROS_MASTER_URI=http://192.XXX.XXX.dc:11311/
[WARN] [1685535996.918111]: can't retrieve connection information using XMLRPC from [http://192.XXX.XXX.ae:11611], socket error: timed out
[WARN] [1685536011.939376]: can't retrieve connection information using XMLRPC from [http://192.XXX.XXX.ae:11611], socket error: timed out

This the output from the pc-linux:

[INFO] [1685535335.030902]: Check the ROS Master[Hz]: 1
[INFO] [1685535335.034230]: Heart beat [Hz]: 0.02
[INFO] [1685535335.037334]: Active request after [sec]: 60
[INFO] [1685535335.040327]: Remove after [sec]: 300
[INFO] [1685535335.043350]: Robot hosts: ['192.XXX.XXX.ae']
[INFO] [1685535335.046686]: Approx. mininum avg. network load: 2.72 bytes/s
[INFO] [1685535335.063905]: Start RPC-XML Server at ('0.0.0.0', 11611)
[INFO] [1685535335.070067]: hide_nodes: []
[INFO] [1685535335.075686]: hide_topics: []
[INFO] [1685535335.080992]: hide_services: []
[INFO] [1685535335.084193]: Subscribe to parameter `/roslaunch/uris`
[INFO] [1685535335.098708]: + Bind to specified unicast socket @(192.XXX.XXX.dc:11511)
[INFO] [1685535335.231672]: Detected master discovery: http://192.XXX.XXX.dc:11611
[INFO] [1685535335.340096]: Added master with ROS_MASTER_URI=http://192.XXX.XXX.dc:11311/
[INFO] [1685535987.121457]: Detected master discovery: http://192.XXX.XXX.ae:11611
[WARN] [1685535997.244617]: can't retrieve connection information using XMLRPC from [http://192.XXX.XXX.ae:11611], socket error: timed out
[WARN] [1685536012.269107]: can't retrieve connection information using XMLRPC from [http://192.XXX.XXX.ae:11611], socket error: timed out

Could you help me on this issue please?

Thanks in advance.

atiderko commented

can you try to set the _rpc_addr:=192.XXX.XXX.ae on the laptop-windows

mericgeren commented

When i try to set _rpc_addr:=192.XXX.XXX.ae with rosrun fkie_master_discovery master_discovery _log_level:=DEBUG _robot_hosts:=['192.XXX.XXX.dc'] send_mcast:=False listen_mcast:=False _rpc_addr:=192.XXX.XXX.ae on the laptop-windows, i get this warning repeating itself:

[WARN] [1685538983.994773]: Error while start RPC-XML server on port 11611: [Errno 98] Address already in use Try again...

Thank you for your kind help and for your time.

atiderko commented

the port is already in use. Try to change the rpc port to e.g.: _rpc_port:=11612