In Kafka 3.1 the log level for the “Node x disconnected” message was changed from DEBUG to INFO, and as a result I’m seeing regular messages saying the nodes are disconnected.
But strangely the message is getting logged every 5 minutes for every stream thread. I’m thinking the 5 minutes could be the metadata.max.age.ms setting, which defaults to 5 minute and the fact that after every disconnect message I see this message - “Requesting metadata update”.
So my question is, is this how metadata refreshing works, and if this is expected then why would the log level have been changed to INFO, it makes people assume there are connectivity issues with the brokers?