Tomoya Fujita

@Barry-Xu-2018 this is the problem to scale the system, can we dig deeper a bit. if the multiple subscriptions are in different node via network, the problem still can happen?...

is this because it takes advantage of multicast? or any implementation specific behavior?

@Barry-Xu-2018 do we have any progress on this? CC: @MiguelCompany

@iuhilnehc-ynos is this ready to review?

@gbiggs can you merge this, we do not have permission on this repo.

@glpuga i do agree with you, it is so unlikely to happen but eventually there is a possibility. since it is configurable using parameter actionlib_client_pub_queue_size/actionlib_client_sub_queue_size, it is user responsibility what...

@StefanFabian > SimpleActionClient simplifies that to tracking a single goal. > As it is, the ActionClient does not support multiple goals fully. correct, > A simple example would be sending...

@StefanFabian @glpuga https://github.com/ros/actionlib/pull/162, that is an easy fix, but could you check just in case?

@mgrrx could you check the CI failure? http://build.ros.org/job/Npr__actionlib__ubuntu_focal_amd64/34/testReport/rostest.runner/RosTest/testtest_cpp_simple_client/

rostest.runner.RosTest.testtest_cpp_simple_client has been in some problems in CI, I am not sure what goes wrong but it just does not get succeeded. (sometimes raise exeception, sometimes timeout so the state...