kafka的搭建,命令

a)kafka搭建
		1、解压

		2、修改配置/software/kafka_2.11-0.11.0.3/config/server.properties
			broker.id=0
			log.dirs=/var/huawei/kafka-logs
			zookeeper.connect=node03:2181,node04,2181:node05:2181
			delete.topic.enable=true

		3、配置kafka启动脚本
			a)创建文件
				/software/kafka_2.11-0.11.0.3/bin/startKafka.sh
			b)输入
				nohup bin/kafka-server-start.sh   config/server.properties > kafka.log 2>&1 &
			c)修改启动脚本权限
				chmod +x ./startKafka.sh 

		4、分发到node02，node03

		5、修改broker.id
			a)node02的/software/kafka_2.11-0.11.0.3/config/server.properties
				broker.id=1
			b)node02的/software/kafka_2.11-0.11.0.3/config/server.properties
				broker.id=2

		6、配置环境变量
			export KAFKA_HOME=/software/kafka_2.11-0.11.0.3
			export PATH=$PATH:$KAFKA_HOME/bin

		7、脚本启动  到/software/kafka_2.11-0.11.0.3
			创建startKafka.sh   添加以下命令
			nohup /software/kafka_2.11-0.11.0.3/bin/kafka-server-start.sh   /software/kafka_2.11-0.11.0.3/config/server.properties > kafka.log 2>&1 &

a)kafka命令
		1).创建topic
			zookeeper地址				操作方式   topic名字	分区个数	   副本个数
kafka-topics.sh --zookeeper node03:2181,node04:2181,node05:2181 --create --topic test --partitions 3 --replication-factor 3

		2).查看集群中的topic:
			kafka-topics.sh --zookeeper node03:2181,node04:2181,node05:2181 --list

        3).console当做消息的生产者
							生产消息时指定kafka集群			指定生产到那个topic
        	kafka-console-producer.sh --broker-list node01:9092,node02:9092,node03:9092  --topic test

        4).console当做消息消费者
						默认找2181端口，所以可以不写
        	kafka-console-consumer.sh --zookeeper node03,node04,node05 --topic test

			从头消费
        	kafka-console-consumer.sh --zookeeper node03,node04,node05 --topic test --from-beginning

        5).查看topic详细描述
			进入zkCli.sh客户端
				zookeeper中broker信息：get /brokers/topics/test/partitions/0/state
				zookeeper中consumer信息：get /consumers/console-consumer-53584/offsets/test/2

        	命令：查看test的topic详细信息
        		kafka-topics.sh --zookeeper node03:2181,node04:2181,node05:2181 --describe  --topic test

        6).删除topic
        	kafka-topics.sh --zookeeper node03,node04,node05 --delete --topic test1

        	在/software/kafka_2.11-0.11.0.3/config/server.properties 配置 delete.topic.enable=true