Kafka分布式集群部署
Kafka是由LinkedIn开发的一个分布式的消息系统，使用Scala编写，它以可水平扩展和高吞吐率而被广泛使用。目前越来越多的开源分布式处理系统如Cloudera、Apache Storm、Spark都支持与Kafka集成。
1.下载Kafka并安装
- kafka是一个消息系统。
- kafka对流数据可以高效的实时处理。
- 分布式集群的环境下能够保证数据的安全。
1）下载Apache版本的Kafka。
2）下载Cloudera版本的Kafka。
3）这里选择下载Apache版本的kafka_2.11-0.8.2.1.tgz ，然后上传至bigdata-pro01.kfk.com节点/opt/softwares/目录下
[kfk@bigdata-pro01 ~]$ cd /opt/softwares/
[kfk@bigdata-pro01 softwares]$ rz
4）解压Kafka
[kfk@bigdata-pro01 softwares]$ tar -zxf kafka_2.11-0.8.2.1.tgz -C /opt/modules/ [kfk@bigdata-pro01 softwares]$ cd ../modules/ [kfk@bigdata-pro01 modules]$ ll total 20 drwxr-xr-x 11 kfk kfk 4096 Oct 22 12:09 hadoop-2.6.0 drwxr-xr-x 23 kfk kfk 4096 Oct 23 10:04 hbase-0.98.6-cdh5.3.0 drwxr-xr-x. 8 kfk kfk 4096 Aug 5 2015 jdk1.8.0_60 drwxr-xr-x 5 kfk kfk 4096 Feb 27 2015 kafka_2.11-0.8.2.1 drwxr-xr-x 15 kfk kfk 4096 Oct 22 15:56 zookeeper-3.4.5-cdh5.10.0
2.Kafka集群配置
1）配置server.properties文件
vi kafka_2.11-0.8.2.1 #节点唯一标识 broker.id=0 #默认端口号 port=9092 #主机名绑定 host.name=bigdata-pro01.kfk.com #Kafka数据目录 log.dirs=/opt/modules/kafka_2.11-0.8.2.1/tmp/kafka-logs #配置Zookeeper zookeeper.connect=bigdata-pro01.kfk.com:2181,bigdata-pro02.kfk.com:2181,bigdata-pro03.kfk.com:2181
2）配置zookeeper.properties文件
#配置hostname
#Zookeeper的数据存储路径
[kfk@bigdata-pro01 modules]$ cd kafka_2.11-0.8.2.1/ [kfk@bigdata-pro01 kafka_2.11-0.8.2.1]$ mkdir kafka-logs [kfk@bigdata-pro01 kafka_2.11-0.8.2.1]$ cd kafka-logs/ [kfk@bigdata-pro01 kafka-logs]$ pwd /opt/modules/kafka_2.11-0.8.2.1/kafka-logs
3）配置producer.properties文件
#配置Kafka集群地址
metadata.broker.list=bigdata-pro01.kfk.com:9092
4）Kafka分发到其他节点
scp -r kafka_2.11-0.8.2.1 bigdata-pro02.kfk.com:/opt/modules/ scp -r kafka_2.11-0.8.2.1 bigdata-pro03.kfk.com:/opt/modules/
5）修改另外两个节点的server.properties
#bigdata-pro02.kfk.com节点 broker.id=1 host.name=bigdata-pro02.kfk.com #bigdata-pro03.kfk.com节点 broker.id=2 host.name=bigdata-pro03.kfk.com
3.启动Kafka集群并进行测试
1）各个节点启动Zookeeper集群
bin/zkServer.sh start
2）启动Kafka集群
bin/kafka-server-start.sh config/server.properties
3）创建topic
[kfk@bigdata-pro02 kafka_2.11-0.8.2.1]$ bin/kafka-topics.sh --zookeeper bigdata-pro01.kfk.com:2181,bigdata-pro02.kfk.com:2181,bigdata-pro03.kfk.com:2181 --create --topic test --replication-factor 1 --partitions 1 Created topic "test".
4）查看topic列表
[kfk@bigdata-pro03 kafka_2.11-0.8.2.1]$ cd ../zookeeper-3.4.5-cdh5.10.0/ [kfk@bigdata-pro03 zookeeper-3.4.5-cdh5.10.0]$ bin/zkCli.sh Connecting to localhost:2181 2018-10-24 11:25:52,530 [myid:] - INFO [main:Environment@100] - Client environment:zookeeper.version=3.4.5-cdh5.10.0--1, built on 01/20/2017 20:07 GMT 2018-10-24 11:25:52,536 [myid:] - INFO [main:Environment@100] - Client environment:host.name=bigdata-pro03.kfk.com 2018-10-24 11:25:52,536 [myid:] - INFO [main:Environment@100] - Client environment:java.version=1.8.0_60 2018-10-24 11:25:52,540 [myid:] - INFO [main:Environment@100] - Client environment:java.vendor=Oracle Corporation 2018-10-24 11:25:52,540 [myid:] - INFO [main:Environment@100] - Client environment:java.home=/opt/modules/jdk1.8.0_60/jre 2018-10-24 11:25:52,540 [myid:] - INFO [main:Environment@100] - Client environment:java.class.path=/opt/modules/zookeeper-3.4.5-cdh5.10.0/bin/../build/classes:/opt/modules/zookeeper-3.4.5-cdh5.10.0/bin/../build/lib/*.jar:/opt/modules/zookeeper-3.4.5-cdh5.10.0/bin/../share/zookeeper/zookeeper-3.4.5-cdh5.10.0.jar:/opt/modules/zookeeper-3.4.5-cdh5.10.0/bin/../share/zookeeper/slf4j-log4j12-1.7.5.jar:/opt/modules/zookeeper-3.4.5-cdh5.10.0/bin/../share/zookeeper/slf4j-api-1.7.5.jar:/opt/modules/zookeeper-3.4.5-cdh5.10.0/bin/../share/zookeeper/netty-3.10.5.Final.jar:/opt/modules/zookeeper-3.4.5-cdh5.10.0/bin/../share/zookeeper/log4j-1.2.16.jar:/opt/modules/zookeeper-3.4.5-cdh5.10.0/bin/../share/zookeeper/jline-2.11.jar:/opt/modules/zookeeper-3.4.5-cdh5.10.0/bin/../src/java/lib/*.jar:/opt/modules/zookeeper-3.4.5-cdh5.10.0/bin/../conf: 2018-10-24 11:25:52,541 [myid:] - INFO [main:Environment@100] - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib 2018-10-24 11:25:52,541 [myid:] - INFO [main:Environment@100] - Client environment:java.io.tmpdir=/tmp 2018-10-24 11:25:52,541 [myid:] - INFO [main:Environment@100] - Client environment:java.compiler=<NA> 2018-10-24 11:25:52,541 [myid:] - INFO [main:Environment@100] - Client environment:os.name=Linux 2018-10-24 11:25:52,541 [myid:] - INFO [main:Environment@100] - Client environment:os.arch=amd64 2018-10-24 11:25:52,541 [myid:] - INFO [main:Environment@100] - Client environment:os.version=2.6.32-431.el6.x86_64 2018-10-24 11:25:52,541 [myid:] - INFO [main:Environment@100] - Client environment:user.name=kfk 2018-10-24 11:25:52,542 [myid:] - INFO [main:Environment@100] - Client environment:user.home=/home/kfk 2018-10-24 11:25:52,542 [myid:] - INFO [main:Environment@100] - Client environment:user.dir=/opt/modules/zookeeper-3.4.5-cdh5.10.0 2018-10-24 11:25:52,545 [myid:] - INFO [main:ZooKeeper@438] - Initiating client connection, connectString=localhost:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@1a86f2f1 Welcome to ZooKeeper! 2018-10-24 11:25:52,609 [myid:] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@975] - Opening socket connection to server localhost/0:0:0:0:0:0:0:1:2181. Will not attempt to authenticate using SASL (unknown error) JLine support is enabled 2018-10-24 11:25:52,759 [myid:] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@852] - Socket connection established, initiating session, client: /0:0:0:0:0:0:0:1:41773, server: localhost/0:0:0:0:0:0:0:1:2181 2018-10-24 11:25:52,784 [myid:] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@1235] - Session establishment complete on server localhost/0:0:0:0:0:0:0:1:2181, sessionid = 0x366a40512f10002, negotiated timeout = 30000 WATCHER:: WatchedEvent state:SyncConnected type:None path:null [zk: localhost:2181(CONNECTED) 0] ls [zk: localhost:2181(CONNECTED) 1] ls / [controller_epoch, controller, brokers, zookeeper, yarn-leader-election, hadoop-ha, rmstore, admin, consumers, config, hbase] [zk: localhost:2181(CONNECTED) 2] ls /brokers [ids, topics] [zk: localhost:2181(CONNECTED) 3] ls /brokers/topics [test]
5）生产者生成数据以及消费者消费数据
创建生产者
[kfk@bigdata-pro02 kafka_2.11-0.8.2.1]$ bin/kafka-console-producer.sh --broker-list bigdata-pro01.kfk.com:9092,bigdata-pro02.kfk.com:9092,bigdata-pro03.kfk.com:9092 --topic test [2018-10-24 11:28:52,335] WARN Property topic is not valid (kafka.utils.VerifiableProperties)
创建消费者
[kfk@bigdata-pro02 kafka_2.11-0.8.2.1]$ bin/kafka-console-consumer.sh --zookeeper bigdata-pro01.kfk.com:2181,bigdata-pro02.kfk.com:2181,bigdata-pro03.kfk.com:2181 --from-beginning --topic test
在生产者这边输入数据：
消费者端便可以实时的获取数据：
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