ROS2 node see each other some times to times
Using Eloquent & Fast_RTPS.
I have a subscriber running in a docker container, D_Sub.
I have a publisher running in a docker container D_Pub.
At first, when launched more or less at the same time, D_Sub is receiving what D_Pub send. It always works the first time.
Don't relaunch or turn off D_Sub. Only D_Pub is relaunched.
If I relaunch D_Pub it works again i.e D_Sub is receiving what D_Pub send.
If I relaunch D_Pub one more time it works again.
If I relaunch D_Pub any time more it doesn't works i.e D_Sub does NOT receive what D_Pub send.
Sometimes it works 3 times, some times 2 ... Why is that ? Note that it is in a local network so there is no data loss or connectivity problem.
You can test it with :
docker run -it --rm osrf/ros:eloquent-desktop ros2 run demo_nodes_cpp talker
and
docker run -it --rm osrf/ros:eloquent-desktop ros2 run demo_nodes_cpp listener
