Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

Rosbag doesn't record cmd_vel on remote master

rosbag

asked 2012-06-12 11:01:36 -0600

PKG
365 ●37 ●39 ●46

updated 2012-06-12 11:21:33 -0600

I'm running Electric on Natty and have the following peculiar issue.

When I run rosbag -a on the above host, the bag output records cmd_vel. However, when I collect rosbag output after setting ROS_MASTER_URI to a different host (which runs diamondback on Lucid), I don't get cmd_vel recorded. Even

shell> rosbag record cmd_vel -a

fails to record cmd_vel in such a case, although all other topics are logged. Note that cmd_vel is being published always. What could be the problem?

Updated after Lorenzo's answer rostopic echo /cmd_vel gives the right output in such a case.

edit retag flag offensive close merge delete

Comments

Probably not the cause, but mixing Electric and Diamondback in a single ROS graph is a bad idea and not supported.

joq ( 2012-06-12 11:54:14 -0600 )edit

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2012-06-12 11:13:26 -0600

Lorenz

22731 ●129 ●202 ●316 http://ias.in.tum.de/p...

updated 2012-06-12 11:23:50 -0600

This looks like a network problem to me. To prove, check if rostopic echo /cmd_vel also doesn't work. Have a look at this page for more information on debugging network issues.

Edit: Also try rosbag record cmd_vel instead of rosbag record -a to make sure that it hasn't something to do with the -a flag.

edit flag offensive delete link

add a comment

Question Tools

Stats

Asked: 2012-06-12 11:01:36 -0600

Seen: 355 times

Last updated: Jun 12 '12

Rosbag doesn't record cmd_vel on remote master edit

Comments

1 Answer

Question Tools

Stats

Related questions

Rosbag doesn't record cmd_vel on remote master