NS3 log file too big

[DFCui]

Hello all,
I run a scenario with NS3 enabled and found the log file(communication.log) for NS3 is big. I checked the log file and found that most log information is for process org.eclipse.mosaic.fed.ns3.ambassador.Ns3Ambassador, i.e. Ns3AmbassadorOutput, which are details about NS3 simulation. I am not interested these details and they take too much space.
Is there anyone knowing how to turn off the logger for the process org.eclipse.mosaic.fed.ns3.ambassador.Ns3Ambassador?
Could you please provide some suggestions on how to disable the Ns3AmbassadorOutput?

Thank you very much.

[kschrab]

Hi, the main configuration for logging in MOSAIC is in etc/logback.xml. To disable the log for Ns3Ambassador completely, you can change the log level for the logger named "org.eclipse.mosaic.fed.ns" to WARN or ERROR:

<logger name="org.eclipse.mosaic.fed.ns3" additivity="false" level="ERROR">
    <appender-ref ref="CommunicationLog"/>
</logger>

To configure the logging of the ns-3 federate, than you need to configure the logging in the top section of the ns3_federate_config.xml of the scenario. Here we already pre-configured the logging level for each component of ns-3, to make it simpler for the user. Make sure to use the latest version of MOSAIC , as we just improved the logging a few days ago (use 21.1 release from today, or build from the current main branch).