119 lines
2.8 KiB
Markdown
119 lines
2.8 KiB
Markdown
# 基于Zookeeper搭建Kafka高可用集群
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## 一、Zookeeper集群搭建
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## 二、Kafka集群搭建
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### 2.1 下载解压
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Kafka安装包官方下载地址：http://kafka.apache.org/downloads ，本用例下载的版本为`2.2.0`，下载命令：
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```shell
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# 下载
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wget https://www-eu.apache.org/dist/kafka/2.2.0/kafka_2.12-2.2.0.tgz
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```
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这里说明一下kafka安装包的命名规则：以`kafka_2.12-2.2.0.tgz`为例，前面的2.12代表Scala的版本号（Kafka是采用Scala语言开发的），后面的2.2.0代表Kafka的版本号。
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```shell
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# 解压
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tar -xzf kafka_2.12-2.2.0.tgz
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```
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### 2.2 拷贝配置文件
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进入解压目录的` config`目录下 ，拷贝三份配置文件
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```shell
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# cp server.properties server-1.properties
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# cp server.properties server-2.properties
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# cp server.properties server-3.properties
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```
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### 2.3 修改配置
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分别修改三份配置文件中的部分配置，如下：
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server-1.properties：
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```properties
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# The id of the broker. 集群中每个节点的唯一标识
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broker.id=0
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# 监听地址
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listeners=PLAINTEXT://hadoop001:9092
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# 日志文件存放位置
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log.dirs=/usr/local/kafka-logs/00
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# Zookeeper连接地址
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zookeeper.connect=hadoop001:2181,hadoop001:2182,hadoop001:2183
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```
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server-2.properties：
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```properties
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broker.id=1
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listeners=PLAINTEXT://hadoop001:9093
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log.dirs=/usr/local/kafka-logs/01
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zookeeper.connect=hadoop001:2181,hadoop001:2182,hadoop001:2183
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```
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server-3.properties：
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```properties
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broker.id=2
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listeners=PLAINTEXT://hadoop001:9094
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log.dirs=/usr/local/kafka-logs/02
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zookeeper.connect=hadoop001:2181,hadoop001:2182,hadoop001:2183
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```
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### 2.4 启动集群
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分别指定不同配置文件，启动三个Kafka节点：
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```shell
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bin/kafka-server-start.sh config/server-1.properties
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bin/kafka-server-start.sh config/server-2.properties
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bin/kafka-server-start.sh config/server-3.properties
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```
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启动后使用jps查看进程，此时应该有三个zookeeper进程和三个kafka进程：
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```shell
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[root@hadoop001 kafka_2.12-2.2.0]# jps
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14288 QuorumPeerMain
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18385 Jps
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16228 Kafka
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17653 Kafka
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14374 QuorumPeerMain
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16826 Kafka
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14446 QuorumPeerMain
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```
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### 2.5 创建测试主题
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创建测试主题：
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```shell
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bin/kafka-topics.sh --create --bootstrap-server hadoop001:9092 --replication-factor 3 --partitions 1 --topic my-replicated-topic
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```
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查看主题信息：
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```shell
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bin/kafka-topics.sh --describe --bootstrap-server hadoop001:9092 --topic my-replicated-topic
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```
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还可以进一步创建一个消费者和一个生产者进行测试：
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```shell
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# 创建生产者
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bin/kafka-console-producer.sh --broker-list hadoop001:9093 --topic my-replicated-topic
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```
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```shell
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# 创建消费者
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bin/kafka-console-consumer.sh --bootstrap-server hadoop001:9094 --from-beginning --topic my-replicated-topic
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```
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