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.
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