[ros-users] removing dead nodes from roscore registration

[koen buys]

That's indeed what I need.

On 14 April 2010 09:38, Ken Conley <kwc at willowgarage.com> wrote:

> Not sure I fully understand the question. rosnode cleanup removes the
> registration from the master. This effectively prevents any new
> subscribers from connecting to the publisher, but will not disturb
> existing connections. It does nothing else to the node. rosnode kill
> attempts to kill a node, but it may not work on unresponsive nodes.
>
> FYI: we're working on extending roslaunch to provide the ability to
> use the roslaunch infrastructure to kill nodes on remote machines.
>
>  - Ken
>
> On Wed, Apr 14, 2010 at 12:31 AM, koen buys <koen.buys at mech.kuleuven.be>
> wrote:
> > What if a node doens't respond but still is publishing?
> >
> > On 13 April 2010 16:49, Brian Gerkey <gerkey at willowgarage.com> wrote:
> >>
> >> On Tue, Apr 13, 2010 at 1:22 AM, Rosen Diankov <rosen.diankov at gmail.com
> >
> >> wrote:
> >> > If processes immediately die without properly calling the ros shutdown
> >> > methods, the node will stay registered with the core forever. the
> >> > result is that the rxgraph slowly gets cluttered with dead nodes and
> >> > makes it really inconvenient. we've tried 'rosnode kill', but that
> >> > doesn't seem to un-register the node. because we want to keep a
> >> > roscore constantly running on every robot, we cannot just restart the
> >> > roscore....
> >>
> >> hi Rosen,
> >>
> >> You can try the semi-hidden 'cleanup' feature of rosnode:
> >>  rosnode cleanup
> >> It will ping all nodes, then offer to delete entries from the master
> >> that correspond to the nodes that don't respond.
> >>
> >>        brian.
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> >
> >
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