[ros-users] roslaunch weirdness on PR2 basestation

[Hai Nguyen]

That definitely sounds like it would cause this issue.  Is there a way  
around so that the base station can perform remote launches on the  
robot?

On Jul 21, 2010, at 1:58 PM, Ken Conley wrote:

> The implementation of the local machine check is in roslaunch.core:78
> . It looks up the address for the machine name, then compares that
> against the IPs for the local machine.
>
> - Ken
>
> On Tue, Jul 20, 2010 at 2:39 PM, Hai Nguyen <haidai at gmail.com> wrote:
>> Hi,
>>
>> I am unable to launch nodes on the PR2 from the base station but I am
>> able to launch nodes from the base station to any other computers in
>> our lab.  In the sample launch file below, if I change
>> "skynet.hsi.gatech.edu" to "pr2c1.hsi.gatech.edu" then then roslaunch
>> does not even try to ssh to the PR2 to launch (no messages saying
>> "creating ssh connection to some.machine.name" in the console).  Is
>> roslaunch doing some fancy tricks to figure out whether the provided
>> address is on the same machine?  If so, it seems something like that
>> might fail on the base station where some of the "local addresses"  
>> are
>> PR2 VPN tunnels.
>>
>> <launch>
>>  <machine name="mymachine" address="skynet.hsi.gatech.edu"   <!--
>> does not work if I change this to pr2c1.hsi.gatech.edu or
>> pr2c2.hsi.gatech.edu -->
>>           ros-root="/opt/ros/cturtle/ros"
>>           ros-package-path="/opt/ros/cturtle/stacks:/u/haidai/svn/ 
>> wg-ros-pkg:/u/haidai/svn/gt-ros-pkg"
>> />
>>
>>  <node name="r_posture" pkg="teleop_controllers" type="posture.py"
>> args="r_cart elbowupr" machine="mymachine"/>
>>  <node name="l_posture" pkg="teleop_controllers" type="posture.py"
>> args="l_cart elbowupl" machine="mymachine"/>
>> </launch>
>>
>>
>> --
>> Hai Nguyen
>> CS, Robotics
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>>
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