Errors related to rqt

[Yadunund]

Termination

This is a known issue: ros2/rclpy#1081

Several reports of failure to cleanly terminate rqt applications with error below:

rclpy._rclpy_pybind11.RCLError: failed to shutdown: rcl_shutdown already called on the given context, at ./src/rcl/init.c:313

^C[INFO] [1683135438.923384012] [rclcpp]: signal_handler(signum=2)
Warning: class_loader.ClassLoader: SEVERE WARNING!!! Attempting to unload library while objects created by this loader exist in the heap! You should delete your objects before attempting to unload the library or destroying the ClassLoader. The library will NOT be unloaded.
         at line 127 in ./src/class_loader.cpp

Note: I'm not seeing the rcl_shutdown error when closing the rqt window by clicking the x button. It seems to occur only when terminating the process via Ctrl+C.

Reports

• Understanding ROS2 Topics #1016 (comment)
• Using Rqt Console #1021 (comment)
• RQT #842 (comment)
• Topic monitor #902 (comment)

rqt_graph

• Params not refreshing: Understanding ROS2 Topics #1016 (comment)
  • [x] Fix: Refresh rosgraph when params checkbox is clicked ros-visualization/rqt_graph#86
• Weird circles: Understanding ROS2 Topics #1016 (comment)

rqt_plot

• Joint position visualization failing: RQT #842 (comment)
  • Upstream ticket: [rolling] Unable to plot joint_states ros-visualization/rqt_plot#89
    • [x] Fix: Fix regression from #87 ros-visualization/rqt_plot#90

rqt_bag

• Bag seems to be broken: RQT #847
  • ros2: recording doesn't create metadata.yaml ros-visualization/rqt_bag#127
  • ros2: let user choose storage implementation on recording ros-visualization/rqt_bag#129
  • Use same storage format as rosbag2 [ros2] Use default storage id from rosbag2 ros-visualization/rqt_bag#139
  • [windows] warnings related to qt_gui_cpp: RQT #840 (comment)

rqt

• No executable: ros2 run rqt rqt No Executable Found ros-visualization/rqt#270
• rqt_bag and rqt_plot are laggy on windows RQT #844 (comment)