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After a long period of operation, the topic communications slow down.

asked 2023-03-06 10:47:44 -0500

mutsuyuki gravatar image

I'm new to ROS2 and using eloquent.

When running ROS2 application for long periods of time, certain topic take several seconds to several tens of seconds to be received after transmission.

There are multiple topic communications in my application, but only certain topic is delayed at each time. The first few hours are fine, but once the delay occurs, it does not go away.

What are the possible causes?

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Some expectation management: Eloquent has been end-of-life for about 2.5 years now.

Because of that, it's unlikely you'll get many responses.

gvdhoorn gravatar image gvdhoorn  ( 2023-03-06 14:01:24 -0500 )edit

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answered 2023-03-06 14:36:47 -0500

msmcconnell gravatar image

If you haven't tried already, I recommend reading through the DDS Tuning guide and trying out some of the options. https://docs.ros.org/en/foxy/How-To-G...

There's also a good chance your own software is at fault so be sure to verify your nodes are running as expected before deep diving into DDS.

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Asked: 2023-03-06 10:47:44 -0500

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Last updated: Mar 06 '23