Github user franz1981 commented on the issue:
https://github.com/apache/activemq-artemis/pull/1295
@clebertsuconic But the *sampler* is not strictly part of Artemis code, is
a CLI command that works as a separated process from the broker. The user can
choose every time a different trace file without changing the broker
configuration, on the fly, while the broker is running.
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