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                **1. 創建topic** ```shell -- 查看有哪些參數 [root@hadoop101 kafka]# bin/kafka-topics.sh --create 要創建一個topic --topic 指定topic的名字 --zookeeper 指定要連接的zookeeper --replication-factor 設置副本因子,這個數值不能大于Broker數量, 即不能大于節點數 --partitions 分區數量 -- 創建topic [root@hadoop101 kafka]# bin/kafka-topics.sh --create --topic topic1 --zookeeper hadoop101:2181 --replication-factor 1 --partitions 3 Created topic "topic1". -- 查看當前服務器所有的topic [root@hadoop101 kafka]# bin/kafka-topics.sh --list --zookeeper hadoop101:2181 topic1 -- 查看topic的詳細信息 [root@hadoop101 kafka]# bin/kafka-topics.sh --describe --zookeeper hadoop101:2181 Topic:topic1 PartitionCount:3 ReplicationFactor:1 Configs: Topic: topic1 Partition: 0 Leader: 0 Replicas: 0 Isr: 0 Topic: topic1 Partition: 1 Leader: 0 Replicas: 0 Isr: 0 Topic: topic1 Partition: 2 Leader: 0 Replicas: 0 Isr: 0 ``` **2. 生成和消費數據** ```shell -- 啟動kafka生產者 [root@hadoop101 kafka]# bin/kafka-console-producer.sh --broker-list hadoop101:9092 --topic topic1 -- 啟動kafka消費者 --from-beginning 代表從頭消費 [root@hadoop101 kafka]# bin/kafka-console-consumer.sh --bootstrap-server hadoop101:9092 --topic topic1 --from-beginning -- 在生產者終端輸入消息 >hello world kafka > -- 在消費者終端就可以看到消息了 hello world kafka ```
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