Jacob Perron

I'm not familiar with how to specify a particular FastDDS XML file for one ROS node in a process. Specifically, I guess you'll want to somehow associate the XML file...

rebased on rolling

@davetcoleman My understanding is "composable" refers to the ability for a node to be used as part of a [Composition](https://index.ros.org/doc/ros2/Tutorials/Composition/) (running multiple nodes in a single process). The Action examples...

> You mean rename the source files, right? Yeah, the source files and executables. It looks like the README's for [minimal_publisher](https://github.com/ros2/examples/blob/master/rclcpp/minimal_publisher/README.md) and [minimal_subscriber](https://github.com/ros2/examples/tree/master/rclcpp/minimal_subscriber) have explanations of "composable", so at the...

Can you provide a [SSCCE](http://sscce.org/) for reproducing the error? Thanks

@machinekoder Friendly ping. If you could provide reproducible example of a service and client that causes the error that would be great.

I think having a mechanism to introspect services makes sense to support as a core feature in ROS 2, i.e. having a way to see what requests and responses being...

We should also consider the dependencies that the example brings, notably OpenCV and `cv_bridge`. It may not be desirable to have the `rosbag2` repository depend on these wrt making releases.

For context, for DDS implementation the [DDS-RTPS spec](https://www.omg.org/spec/DDSI-RTPS/2.5/PDF) describes a GUID as being 16 octets and globally unique within a domain. From section _8.2.1.2_: > Type used to hold globally-unique...

> Between using the allocator in the context and being able to pass allocators individually, I'm not quite sure what's preferred. IMO, passing individual allocators to the functions that may...