kafka異常記錄

[root@bogon bin]# ./kafka-topics.sh --create --zookeeper 127.0.0.1:2181 --replication-factor 2 --partitions 2 --topic topic_001
[2019-11-12 16:42:39,787] WARN Connected to an old server; r-o mode will be unavailable (org.apache.zookeeper.ClientCnxnSocket)
WARNING: Due to limitations in metric names, topics with a period ('.') or underscore ('_') could collide. To avoid issues it is best to use either, but not both.
Error while executing topic command : replication factor: 2 larger than available brokers: 1
[2019-11-12 16:42:40,020] ERROR org.apache.kafka.common.errors.InvalidReplicationFactorException: replication factor: 2 larger than available brokers: 1
 (kafka.admin.TopicCommand$)