Is a kafka message part of a log?
Extra Context
The reason for this question is because I don't think it's clear to a new user that a kafka message is a part of a log. In fact, the idea of a message being in a log sounds pretty confusing but I guess log means something else in kafka.
More importantly, I wanted to configure the retention of these messages see kafka-retention-period question but you'll notice they call it log.retention.hours
. Hopefully, that makes it clearer where this confusion comes from.