title: Launching multiple Kafka brokers fails - Configured brokerId doesn't match stored brokerId
body: <p>While trying to launch multiple Kafka brokers with different brokerId's. One being the default <code>server.properties</code> and the other being <code>serverTest.properties</code> with 2 lines changed, those being <code>broker.id=1</code> and <code>listeners=PLAINTEXT://localhost:6000</code>. The rest is the same default setting. I first start zookeeper, then the default kafka <code>server.properties</code> then while launching <code>serverTest.properties</code> I get the following exception: <code>kafka.common.InconsistentBrokerIdException: Configured brokerId 1 doesn't match stored brokerId 0 in meta.properties</code>. My understanding is that the following above should actually launch multiple nodes, as I've seen others do in tutorials.  I'm using Kafka 9.0. </p>