实战环境
    192.168.10.12 Logstash Kafka Filebeat

    Kafka
    1. Kafka依赖于Zookeeper
    2. 两个都依赖于Java

    Kafka依赖于Zookeeper
    ZooKeeper是一个分布式的，开放源码的分布式应用程序协调服务，是Google的Chubby一个开源的实现，是Hadoop和Hbase的重要组件。它是一个为分布式应用提供一致性服务的软件，提供的功能包括：配置维护、域名服务、分布式同步、组服务等。
    ZooKeeper的目标就是封装好复杂易出错的关键服务，将简单易用的接口和性能高效、功能稳定的系统提供给用户。
    ZooKeeper包含一个简单的原语集，提供Java和C的接口。

    3. 官方网站：https://zookeeper.apache.org/
    4. 下载ZK的二进制包
    5. 解压到对应目录完成安装

    ZK的安装命令
    tar xvf zookeeper-3.4.13.tar.gz -C /usr/local
    cp /usr/local/zookeeper-3.4.13/conf/zoo_sample.cfg /usr/local/zookeeper-3.4.13/conf/zoo.cfg

    ZK的启动
    6. 更改配置：clientPortAddress=0.0.0.0
    [root@server12 ~]# vim /usr/local/zookeeper-3.4.13/conf/zoo.cfg
    # example sakes.
    dataDir=/tmp/zookeeper
    # the port at which the clients will connect
    clientPortAddress=0.0.0.0
    clientPort=2181
    # the maximum number of client connections.
    7. 启动：/usr/local/zookeeper-3.4.13/bin/zkServer.sh start
    [root@server12 ~]# /usr/local/zookeeper-3.4.13/bin/zkServer.sh start
    ZooKeeper JMX enabled by default
    Using config: /usr/local/zookeeper-3.4.13/bin/../conf/zoo.cfg
    Starting zookeeper … STARTED
    [root@server12 ~]# netstat -pantul | grep java
    tcp6 0 0 127.0.0.1:9600 ::: LISTEN 18372/java
    tcp6 0 0 :::2181 :::     LISTEN 20951/java
    tcp6 0 0 :::37190 ::: LISTEN 20951/java
    tcp6 0 0 192.168.10.12:36038 192.168.10.11:9200 ESTABLISHED 18372/java
    tcp6 0 0 192.168.10.12:44542 192.168.10.12:6379 ESTABLISHED 18372/java
    tcp6 0 0 192.168.10.12:36036 192.168.10.11:9200 ESTABLISHED 18372/java

    Kafka下载地址
    8. Kafka官网：http://kafka.apache.org/
    9. 下载Kafka的二进制包
    10. 解压到对应目录完成安装

    Kafka的安装命令
    tar xvf kafka_2.11-2.1.1.tgz
    mv kafka_2.11-2.1.1 /usr/local/kafka_2.11

    Kafka的启动
    11. 更改kafka的配置：更改监听地址、更改连接zk的地址
    [root@server12 ~]# vim /usr/local/kafka_2.11/config/server.properties
    zookeeper.connect=192.168.10.12:2181
    listeners=PLAINTEXT://192.168.10.12:9092

    12. 前台启动：/usr/local/kafka_2.11/bin/kafka-server-start.sh /usr/local/kafka_2.11/config/server.properties
    13. 启动kafka：nohup /usr/local/kafka_2.11/bin/kafka-server-start.sh /usr/local/kafka_2.11/config/server.properties >/tmp/kafka.log 2>&1 &
    [root@server12 ~]# netstat -pantul | grep java
    tcp6 0 0 :::44377 :::     LISTEN 21604/java
    tcp6 0 0 127.0.0.1:9600 ::: LISTEN 18372/java
    tcp6 0 0 192.168.10.12:9092 :::     LISTEN 21604/java
    tcp6 0 0 :::2181 ::: LISTEN 20951/java
    tcp6 0 0 :::37190 :::     LISTEN 20951/java
    tcp6 0 0 192.168.10.12:2181 192.168.10.12:33320 ESTABLISHED 20951/java
    tcp6 0 0 192.168.10.12:36038 192.168.10.11:9200 ESTABLISHED 18372/java
    tcp6 0 0 192.168.10.12:44542 192.168.10.12:6379 ESTABLISHED 18372/java
    tcp6 0 0 192.168.10.12:9092 192.168.10.12:58276 ESTABLISHED 21604/java
    tcp6 0 0 192.168.10.12:36036 192.168.10.11:9200 ESTABLISHED 18372/java
    tcp6 0 0 192.168.10.12:33320 192.168.10.12:2181 ESTABLISHED 21604/java
    tcp6 0 0 192.168.10.12:58276 192.168.10.12:9092 ESTABLISHED 21604/java