How can I resolve the Kafka issue?

[#1]

[2018-10-17 22:45:27,487] ERROR [KafkaApi-1002] Number of alive brokers '0' does not meet the required replication factor '3' for the offsets topic (configured via 'offsets.topic.replication.factor'). This error can be ignored if the cluster is starting up and not all brokers are up yet. (kafka.server.KafkaApis)

[2018-10-17 22:45:27,491] ERROR [KafkaApi-1002] Number of alive brokers '0' does not meet the required replication factor '3' for the offsets topic (configured via 'offsets.topic.replication.factor'). This error can be ignored if the cluster is starting up and not all brokers are up yet. (kafka.server.KafkaApis)

[2018-10-17 22:45:27,491] ERROR [KafkaApi-1002] Number of alive brokers '0' does not meet the required replication factor '3' for the offsets topic (configured via 'offsets.topic.replication.factor'). This error can be ignored if the cluster is starting up and not all brokers are up yet. (kafka.server.KafkaApis)

[2018-10-17 22:45:27,493] ERROR [KafkaApi-1002] Number of alive brokers '0' does not meet the required replication factor '3' for the offsets topic (configured via 'offsets.topic.replication.factor'). This error can be ignored if the cluster is starting up and not all brokers are up yet. (kafka.server.KafkaApis)

[#2]

Hi Mark:

If you continue to see these error messages even after all Kafka brokers have started up successfully, then there may be some kind of connectivity issue between between the broker nodes. If these messages do not continue after all Kafka brokers have started, you can safely ignore these messages.

Thank you,

Jeff Groves