title: Kafka expectantly shutting down. License topic could not be created
body: <p>On Kafka startup multiple messages are logged to <code>kafka/logs/kafkaServer.out</code> and contain:</p>
  <blockquote>
  <p>INFO [Admin Manager on Broker 0]: Error processing create topic
  request CreatableTopic(name='_confluent-license', numPartitions=1,
  replicationFactor=3, assignments=[],
  configs=[CreateableTopicConfig(name='cleanup.policy',
  value='compact'), CreateableTopicConfig(name='min.insync.replicas',
  value='2')]) (kafka.server.AdminManager)</p>
  </blockquote>
  <p>After approx 15 minutes Kafka shuts down and outputted to
  <code>kafka/logs/kafkaServer.out</code> is :</p>
  <blockquote>
  <pre><code>org.apache.kafka.common.errors.InvalidReplicationFactorException: Replication factor: 3 larger than available brokers: 1.
  [2020-12-08 04:04:15,951] ERROR [KafkaServer id=0] Fatal error during KafkaServer startup. Prepare to shutdown
  </code></pre>
  <p>(kafka.server.KafkaServer)
  org.apache.kafka.common.errors.TimeoutException: License topic could not be created
  Caused by: org.apache.kafka.common.errors.InvalidReplicationFactorException:
  Replication factor: 3 larger than available brokers: 1.
  [2020-12-08 04:04:15,952] INFO [KafkaServer id=0] shutting down (kafka.server.KafkaServer)</p>
  </blockquote>
  <p>It appears Kafka shuts down because the replication factor is set to 3 for the topic <code>_confluent-license</code> ? I'm not creating the topic <code>_confluent-license</code>, is this created as part of Kafka startup for licensing check ?</p>
  <p>In attempt to fix I've modified <code>/v5.5.0/etc/kafka/server.properties</code> so that replication factor is 1 for internal topics:</p>
  <pre><code>############################# Internal Topic Settings  #############################
  # The replication factor for the group metadata internal topics &quot;__consumer_offsets&quot; and &quot;__transaction_state&quot;
  # For anything other than development testing, a value greater than 1 is recommended for to ensure availability such as 3.
  offsets.topic.replication.factor=1
  transaction.state.log.replication.factor=1
  </code></pre>
  <p>instead of 3 :</p>
  <pre><code>#offsets.topic.replication.factor=3
  #transaction.state.log.replication.factor=3
  </code></pre>
  <p>But this does not fix the issue and same logs are generated. The replication factor of __consumer_offsets is still 3. How to reduce the replication factor of topic <code>_confluent-license</code> from 3 to 1 ? Or could there be an alternative issue that is causing Kafka to shutdown ?</p>