[ros-users] possible rospy publisher issue?

Ken Conley kwc at willowgarage.com
Thu Mar 29 05:12:09 UTC 2012

On Wed, Mar 28, 2012 at 9:57 PM,  <John.Mcculloch at csiro.au> wrote:
> Hi,
> I have an issue I raised on ROS Answers where a suggestion I received was to bring it to this forum:

I'm not sure why this suggestion was given.  The support guidelines are here:


Please continue using ROS Answers or file a ticket with an appropriate
bug report.

 - Ken

> I have a visualiser running on a laptop via a wifi connection subscribing to GPS messages. When the wifi is dropped the rospy gps publisher hangs (preventing vehicle control through other subscribers). When the wifi is re-established the publisher continues where it left off.
> I have duplicated my issue with the talker listener tutorials and it is only a rospy issue. e.g. start both roscpp and rospy talkers (publishing to the same chatter topic), and on a wirelessly connected pc start a listener (from memory it doesn't matter which of the rospy or roscpp ones), drop the wifi connection, and later (perhaps 1 minute) the rospy publisher hangs, but the roscpp continues OK.  I am less clear on the behaviour when reconnecting - it seems to depend on how long the connection is lost for.
> Hope this is not wasting people's time.
> -John.
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