when killing a roslaunch'ed system, celeros attempt a warm shutdown.
However the task is checking rospy services ( or rostful_node ), and an exception might be raised ( service not found, etc. ) because everything else is being shutdown.
Sometimes, after raising that exception, the celeros process is still hanging there ( maybe because the worker is already trying to shutdown ?
This doesn't aways happen, but require more investigation...
when killing a roslaunch'ed system, celeros attempt a warm shutdown. However the task is checking rospy services ( or rostful_node ), and an exception might be raised ( service not found, etc. ) because everything else is being shutdown. Sometimes, after raising that exception, the celeros process is still hanging there ( maybe because the worker is already trying to shutdown ?
This doesn't aways happen, but require more investigation...