[ros-users] problems with persistent services

Daniel Pinyol ros at dpinol.com
Thu Feb 7 15:05:26 UTC 2013

sorry for the technical spam in this forum, but we've been suffering
this show-stopper for 3 years, and I cannot imagine how it's not also
blocking other people. Maybe we're doing something wrong?

   - We have a robot with around 200 services
   - From long ago, we avoid completely non persistent ROS services. This
   is because, when they're often used (at a few Hz), they create thousands of
   TCP sockets, which heavily affects the machine performance.
   - But a big problem with persistent services is that clients hang when
   the service is rebooted. See https://code.ros.org/trac/ros/ticket/2742
   - Also, we have just found out that both in fuerte and groovy, clients
   freeze when a ROS service returns a false. At least with Ubuntu 12.4 See

Anybody had these problems? Any workaround?

Thank you


Daniel Pinyol
Software Manager

daniel.pinol at pal-robotics.com

[image: cid:image003.png at 01CAC1D4.21F0FEF0]

PAL Robotics, S.L.
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08005 Barcelona
Tel      +34 93 414 53 47
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Skype:  daniel.pal-robotics

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