Hi @poonam1120, [quote="poonam1120, post:18, topic:3596"] * In the process of piplelining, if any node crashes or breaks down,how is this handled in ros? [/quote] I believe ros2 launch should handle restarting a node if it crashes, however I can't find an example of this in source or documentation (https://index.ros.org/doc/ros2/Tutorials/Launch-system/). [quote="poonam1120, post:18, topic:3596"] 2. Pipelining of filters is happening serially or parallely? [/quote] A 'port' of ROS1 would involve instantiating several lifecycle nodes inside one process. See the 'composition' demos: https://github.com/ros2/demos/tree/master/composition A more interesting implementation would have an executor aware of the pipeline structure (https://discourse.ros.org/t/ros2-pcl-perceptions/3596/17), however I don't think any implementation or demo of this exists in the wild. [quote="poonam1120, post:18, topic:3596"] 3. I have observed that all the operations of pcl_ros are not getting tested with either gtest or launch. Please confirm. [/quote] Correct, this certainly would be valuable to fix in the context of a porting effort. --- [Visit Topic](https://discourse.ros.org/t/ros2-pcl-perceptions/3596/19) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: