[ros-users] Unique machine names? (UNCLASSIFIED)

Karan, Cem F USA CIV (US) cem.f.karan.civ at mail.mil
Tue Nov 1 13:41:30 UTC 2011


Classification: UNCLASSIFIED
Caveats: NONE

Hi Ken (and anyone else that is interested in this question), I posted the
question at
http://answers.ros.org/question/2714/local-parameters-from-a-remote-launch-f
ile.  Thanks for being willing to answer this Ken!

Thanks,
Cem Karan

------------------------------

Message: 3
Date: Mon, 31 Oct 2011 11:56:16 -0700
From: Ken Conley <kwc at willowgarage.com>
To: User discussions <ros-users at code.ros.org>
Subject: Re: [ros-users] Unique machine names? (UNCLASSIFIED)
Message-ID:
	<CAAsdojyy5Ti9Sn_PHhuew7D_dpJQ4u=zZq_1bvv7dTx4roF-VQ at mail.gmail.com>
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Hi Cem,

Can you ask these sorts of questions on answers.ros.org instead? I'll give
feedback there.  The answers site is better for "how do I?" sorts of
questions as it enables users to rank and categorize questions/answers.

 - Ken

On Mon, Oct 31, 2011 at 7:55 AM, Karan, Cem F USA CIV (US)
<cem.f.karan.civ at mail.mil> wrote:
> Classification: UNCLASSIFIED
> Caveats: NONE
>
> I'm still fairly new to ROS, so if this question is explained well 
> elsewhere, I apologize.
>
> I'm working on writing a ROS node that publishes network statistics as 
> the local machine sees them. ?That is, each machine has its own, local 
> view of what network connectivity is like, which may or may not be 
> identical to what other machines believe the network is like. ?To 
> support this, I want every machine to be running its own network 
> statistics node, each of which publishes on its own topic; this allows 
> me to bag what each machine sees remotely for debugging purposes. ?The 
> problem is the naming of the nodes; from what I can see in 
> http://www.ros.org/wiki/roslaunch/XML, I can't use a substitution 
> argument, because if I launch multiple nodes remotely, they'll all get 
> copies of my local machine's arguments (rather than arguments on each 
> of their own machines). ?If I use anonymous names, then I have to 
> setup a whole discovery system. In addition, my nodes are somewhat 
> heterogeneous, so I really need to know which node is responding. Is 
> there a way of setting up parameters for each machine, and still use 
> roslaunch remotely? ?Are there per-machine parameters or methods of 
> setting up parameter files? ?Is there a way of telling a node to look for
topics only on the local machine? ?Any help would be appreciated.
>
> Thanks,
> Cem Karan
>
>
>
> Classification: UNCLASSIFIED
> Caveats: NONE
>
>
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> ros-users at code.ros.org
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>
>

Classification: UNCLASSIFIED
Caveats: NONE


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