zookeeper和kafka安装文档

一：kafka简介：

Kafka 被称为下一代分布式消息系统，是非营利性组织ASF(Apache Software Foundation，简称为ASF)基金会中的一个开源项目，比如HTTP Server、Hadoop、ActiveMQ、Tomcat等开源软件都属于Apache基金会的开源软件，类似的消息系统还有RbbitMQ、ActiveMQ、ZeroMQ，最主要的优势是其具备分布式功能、并且结合zookeeper可以实现动态扩容。

http://www.infoq.com/cn/articles/apache-kafka

 

安装环境：

三台服务器：

IP分别是：192.168.56.11 192.168.56.12 192.168.56.13

三台服务器分别配置hosts文件：

# cat /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.56.11 linux-host1.exmaple.com

192.168.56.12 linux-host2.exmaple.com

192.168.56.13 linux-host3.exmaple.com

 

1.1：下载安装并验证zookeeper：

1.1.1：kafka下载地址：

http://kafka.apache.org/downloads.html

 

1.1.2：zookeeper 下载地址：

http://zookeeper.apache.org/releases.html

 

1.1.3：安装zookeeper：

zookeeper集群特性：整个集群种只要有超过集群数量一半的zookeeper工作只正常的，那么整个集群对外就是可用的，假如有2台服务器做了一个zookeeper集群，只要有任何一台故障或宕机，那么这个zookeeper集群就不可用了，因为剩下的一台没有超过集群一半的数量，但是假如有三台zookeeper组成一个集群，那么损坏一台就还剩两台，大于3台的一半，所以损坏一台还是可以正常运行的，但是再损坏一台就只剩一台集群就不可用了。那么要是4台组成一个zookeeper集群，损坏一台集群肯定是正常的，那么损坏两台就还剩两台，那么2台不大于集群数量的一半，所以3台的zookeeper集群和4台的zookeeper集群损坏两台的结果都是集群不可用，一次类推5台和6台以及7台和8台都是同理，所以这也就是为什么集群一般都是奇数的原因。

 

下载后的安装文件上传到各服务器的/usr/local/src目录然后分别执行以下操作。

1.1.3.1：Serer1 配置：

[root@linux-host1 ~]# cd /usr/local/src/

[root@linux-host1 src]# yum install jdk-8u151-linux-x64.tar.gz  -y

[root@linux-host1 src]# tar  xvf zookeeper-3.4.11.tar.gz

[root@linux-host1 src]# ln -sv /usr/local/src/zookeeper-3.4.11 /usr/local/zookeeper

[root@linux-host1 src]# mkdir  /usr/local/zookeeper/data

[root@linux-host1 src]# cp /usr/local/zookeeper/conf/zoo_sample.cfg   /usr/local/zookeeper/conf/zoo.cfg

[root@linux-host1 src]# vim /usr/local/zookeeper/conf/zoo.cfg

[root@linux-host1 src]# grep "^[a-Z]" /usr/local/zookeeper/conf/zoo.cfg

tickTime=2000  #服务器之间或客户端与服务器之间的单次心跳检测时间间隔，单位为毫秒

initLimit=10   #集群中leader服务器与follower服务器第一次连接最多次数

syncLimit=5   # leader 与 follower 之间发送和应答时间，如果该follower 在设置的时间内不能与leader 进行通信，那么此 follower 将被视为不可用。

clientPort=2181 #客户端连接 Zookeeper 服务器的端口，Zookeeper 会监听这个端口，接受客户端的访问请求

dataDir=/usr/local/zookeeper/data  #自定义的zookeeper保存数据的目录

server.1=192.168.56.11:2888:3888  #服务器编号=服务器IP:LF数据同步端口:LF选举端口

server.2=192.168.56.12:2888:3888

server.3=192.168.56.13:2888:3888

[root@linux-host1 src]# echo "1" > /usr/local/zookeeper/data/myid

 

1.1.3.2：Server2 配置：

[root@linux-host2 ~]# cd /usr/local/src/

[root@linux-host2 src]# yum install jdk-8u151-linux-x64.tar.gz  -y

[root@linux-host2 src]# tar xvf zookeeper-3.4.11.tar.gz

[root@linux-host2 src]# ln -sv /usr/local/src/zookeeper-3.4.11 /usr/local/zookeeper

[root@linux-host2 src]#  mkdir  /usr/local/zookeeper/data

[root@linux-host2 src]#  cp /usr/local/zookeeper/conf/zoo_sample.cfg   /usr/local/zookeeper/conf/zoo.cfg

[root@linux-host2 src]# vim /usr/local/zookeeper/conf/zoo.cfg

[root@linux-host2 src]# grep "^[a-Z]" /usr/local/zookeeper/conf/zoo.cfg

tickTime=2000

initLimit=10

syncLimit=5

clientPort=2181

dataDir=/usr/local/zookeeper/data

server.1=192.168.56.11:2888:3888

server.2=192.168.56.12:2888:3888

server.3=192.168.56.13:2888:3888

[root@linux-host2 src]# echo "2" > /usr/local/zookeeper/data/myid

 

 

 

1.1.3.3：Server3 配置：

[root@linux-host3 ~]# cd /usr/local/src/

[root@linux-host3 src]# yum install jdk-8u151-linux-x64.tar.gz  -y

[root@linux-host3 src]# tar xvf zookeeper-3.4.11.tar.gz

[root@linux-host3 src]# ln -sv /usr/local/src/zookeeper-3.4.11 /usr/local/zookeeper

[root@linux-host3 src]#  mkdir  /usr/local/zookeeper/data

[root@linux-host3 src]#  cp /usr/local/zookeeper/conf/zoo_sample.cfg   /usr/local/zookeeper/conf/zoo.cfg

[root@linux-host3 src]# vim /usr/local/zookeeper/conf/zoo.cfg

[root@linux-host3 src]#  grep "^[a-Z]" /usr/local/zookeeper/conf/zoo.cfg

tickTime=2000

initLimit=10

syncLimit=5

clientPort=2181

dataDir=/usr/local/zookeeper/data

server.1=192.168.56.11:2888:3888

server.2=192.168.56.12:2888:3888

server.3=192.168.56.13:2888:3888

[root@linux-host3 src]# echo "3" > /usr/local/zookeeper/data/myid

 

1.1.3.4：各服务器启动zookeeper：

[root@linux-host1 ~]#  /usr/local/zookeeper/bin/zkServer.sh start

ZooKeeper JMX enabled by default

Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

 

[root@linux-host2 src]#  /usr/local/zookeeper/bin/zkServer.sh start

ZooKeeper JMX enabled by default

Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

 

[root@linux-host3 src]#  /usr/local/zookeeper/bin/zkServer.sh start

ZooKeeper JMX enabled by default

Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

 

1.1.3.5：查看各zookeeper状态：

[root@linux-host1 ~]# /usr/local/zookeeper/bin/zkServer.sh  status

ZooKeeper JMX enabled by default

Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg

Mode: follower

 

[root@linux-host2 ~]# /usr/local/zookeeper/bin/zkServer.sh  status

ZooKeeper JMX enabled by default

Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg

Mode: leader

 

[root@linux-host3 ~]# /usr/local/zookeeper/bin/zkServer.sh  status

ZooKeeper JMX enabled by default

Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg

Mode: follower

 

1.1.3.6：zookeeper简单操作命令：

#连接到任意节点生成数据：

[root@linux-host3 data]# /usr/local/zookeeper/bin/zkCli.sh -server 192.168.56.11:2181

 [zk: 192.168.56.11:2181(CONNECTED) 3]  create /test "hello"

 

#在其他zookeeper节点验证数据：

[root@linux-host2 src]# /usr/local/zookeeper/bin/zkCli.sh  -server 192.168.56.12:2181

[zk: 192.168.56.12:2181(CONNECTED) 0] get /test

hello

cZxid = 0x100000004

ctime = Fri Dec 15 11:14:07 CST 2017

mZxid = 0x100000004

mtime = Fri Dec 15 11:14:07 CST 2017

pZxid = 0x100000004

cversion = 0

dataVersion = 0

aclVersion = 0

ephemeralOwner = 0x0

dataLength = 5

numChildren = 0

 

1.2：安装并测试kafka：

1.2.1：Server1安装kafka：

[root@linux-host1 src]# tar xvf kafka_2.11-1.0.0.tgz

[root@linux-host1 src]# ln -sv /usr/local/src/kafka_2.11-1.0.0 /usr/local/kafka

[root@linux-host1 src]# vim /usr/local/kafka/config/server.properties

21 broker.id=1

31 listeners=PLAINTEXT://192.168.56.11:9092

103 log.retention.hours=24  #保留指定小时的日志内容

123 zookeeper.connect=192.168.56.11:2181,192.168.56.12:2181,192.168.56.13:2181 #所有的zookeeper地址

 

 

1.2.2：Server2安装kafka：

[root@linux-host2 src]# tar xvf kafka_2.11-1.0.0.tgz

[root@linux-host2 src]# ln -sv /usr/local/src/kafka_2.11-1.0.0 /usr/local/kafka

[root@linux-host2 src]# vim /usr/local/kafka/config/server.properties

21 broker.id=2

31 listeners=PLAINTEXT://192.168.56.12:9092

123 zookeeper.connect=192.168.56.11:2181,192.168.56.12:2181,192.168.56.13:2181

 

 

1.2.3：Server3安装kafka：

[root@linux-host3 src]# tar xvf kafka_2.11-1.0.0.tgz

[root@linux-host3 src]# ln -sv /usr/local/src/kafka_2.11-1.0.0 /usr/local/kafka

[root@linux-host3 src]# vim /usr/local/kafka/config/server.properties

21 broker.id=3

31 listeners=PLAINTEXT://192.168.56.13:9092

123 zookeeper.connect=192.168.56.11:2181,192.168.56.12:2181,192.168.56.13:2181

 

1.2.4：分别启动kafka：

1.2.4.1：Serevr1启动kafka：

[root@linux-host1 src]# /usr/local/kafka/bin/kafka-server-start.sh -daemon /usr/local/kafka/config/server.properties  #以守护进程的方式启动

 

1.2.4.2：Serevr2启动kafka：

[root@linux-host2 src]# /usr/local/kafka/bin/kafka-server-start.sh -daemon /usr/local/kafka/config/server.properties

 

1.2.4.3：Serevr3启动kafka：

[root@linux-host3 src]# /usr/local/kafka/bin/kafka-server-start.sh -daemon /usr/local/kafka/config/server.properties

 

 

#/usr/local/kafka/bin/kafka-server-start.sh /usr/local/kafka/config/server.properties & #此方式zookeeper会在shell断开后关闭

1.2.5：测试kafka:

1.2.5.1：验证进程：

[root@linux-host1 ~]# jps

10578 QuorumPeerMain

11572 Jps

11369 Kafka

 

[root@linux-host2 ~]# jps

2752 QuorumPeerMain

8229 Kafka

8383 Jps

 

[root@linux-host3 ~]# jps

12626 Kafka

2661 QuorumPeerMain

12750 Jps

 

1.2.5.2：测试创建topic：

创建名为logstashtest，partitions(分区)为3，replication(复制)为3的topic(主题)：

在任意kafaka服务器操作：

[root@linux-host2 ~]# /usr/local/kafka/bin/kafka-topics.sh --create  --zookeeper 192.168.56.11:2181,192.168.56.12:2181,192.168.56.13:2181 --partitions 3 --replication-facto

r 3 --topic logstashtest

Created topic "logstashtest".

 

1.2.5.3：测试获取topic：

可以在任意一台kafka服务器进行测试：

[root@linux-host3 ~]# /usr/local/kafka/bin/kafka-topics.sh  --describe --zookeeper 192.168.56.11:2181,192.168.56.12:2181,192.168.56.13:2181  --topic logstashtest

 

状态说明：logstashtest有三个分区分别为1、2、3，分区0的leader是3（broker.id），分区0有三个副本，并且状态都为lsr（ln-sync，表示可以参加选举成为leader）。

 

1.2.5.4：删除topic：

[root@linux-host3 ~]# /usr/local/kafka/bin/kafka-topics.sh --delete --zookeeper 192.168.56.11:2181,192.168.56.12:2181,192.168.56.13:2181  --topic logstashtest

Topic logstashtest is marked for deletion.

Note: This will have no impact if delete.topic.enable is not set to true.

 

 

1.2.5.5：获取所有topic：

[root@linux-host1 ~]# /usr/local/kafka/bin/kafka-topics.sh  --list --zookeeper 192.168.56.11:2181,192.168.56.12:2181,192.168.56.13:2181

__consumer_offsets

nginx-accesslog-5612

system-log-5612

 

1.2.6：kafka命令测试消息发送：

1.2.6.1：创建topic:

[root@linux-host3 ~]# /usr/local/kafka/bin/kafka-topics.sh --create --zookeeper 192.168.56.11:2181,192.168.56.12:2181,192.168.56.13:2181 --partitions 3 --replication-factor 3 --topic  messagetest

Created topic "messagetest".

 

1.2.6.2：发送消息：

[root@linux-host2 ~]# /usr/local/kafka/bin/kafka-console-producer.sh --broker-list  192.168.56.11:9092,192.168.56.12:9092,192.168.56.13:9092 --topic  messagetest

>hello      

>kafka

>logstash

>ss

>oo

 

1.2.6.3：其他kafka服务器测试获取数据：

#Server1：

[root@linux-host1 ~]#  /usr/local/kafka/bin/kafka-console-consumer.sh --zookeeper 192.168.56.11:2181,192.168.56.12:2181,192.168.56.13:2181 --topic messagetest --from-beginning

 

#Server2：

 

 

#Server3：

 

 

1.2.7：使用logstash测试向kafka写入数据：

1.2.7.1：编辑logstash配置文件：

[root@linux-host3 ~]# vim /etc/logstash/conf.d/logstash-to-kafka.sh

input {

    stdin {}

}

output {

    kafka {

        topic_id => "hello"

        bootstrap_servers => "192.168.56.11:9092"

        batch_size => 5

    }

    stdout {

        codec => rubydebug

    }

}

1.2.7.2：验证kafka收到logstash数据：

[root@linux-host1 ~]# /usr/local/kafka/bin/kafka-console-consumer.sh --zookeeper 192.168.56.11:2181,192.168.56.12:2181,192.168.56.13:2181 --topic hello --from-beginning

Using the ConsoleConsumer with old consumer is deprecated and will be removed in a future major release. Consider using the new consumer by passing [bootstrap-server] inste

ad of [zookeeper].

2017-12-15T14:33:00.684Z linux-host3.exmaple.com hello

2017-12-15T14:33:31.127Z linux-host3.exmaple.com test

 

 

[root@linux-host2 ~]# /usr/local/kafka/bin/kafka-console-producer.sh --broker-list  192.168.56.11:9

092,192.168.56.12:9092,192.168.56.13:9092 --topic  messagetest>hello      

>kafka

>logstash