Can the log level of a (python) ROS node be changed dynamically?

asked 2012-10-01 18:25:56 -0500

Felix Kaser
318 ●6 ●10 ●11 http://kaserf.blogspot.com/

updated 2014-01-28 17:13:48 -0500

ngrennan
1 ●1 ●1

I wonder if it is possible (and if not if it makes sense) to change the log level of a python node during runtime.

The node could connect to a special purpose topic where the log level for the node can be announced. This would allow to have a node running without the debug messages being published to /rosout, but if necessary the log level could be switched to debug if the node is not running as expected.

Of course you can always change the init_node line and re-run the node, but in some occasions a more transparent solution might be useful?

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answered 2021-12-03 12:55:28 -0500

JeremyRoy
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updated 2021-12-03 12:56:35 -0500

Although not currently/officially supported by the rospy api, this can be accomplished through a simple function. See the accepted answer for Change python node log level while running.

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Since this old thread is about ROS1, which is basically frozen for new feature addition, non-complex workaround is probably an acceptable answer and solution. So I marked this as a selected answer.