128 lines
3.4 KiB
Markdown
128 lines
3.4 KiB
Markdown
|
# Kafka 安装部署
|
|||
|
|
|
|||
|
|
环境要求：JDK8、ZooKeeper
|
|||
|
|
|
|||
|
|
## 下载解压
|
|||
|
|
|
|||
|
|
进入官方下载地址：http://kafka.apache.org/downloads，选择合适版本。
|
|||
|
|
|
|||
|
|
解压到本地：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
> tar -xzf kafka_2.11-1.1.0.tgz
|
|||
|
|
> cd kafka_2.11-1.1.0
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
现在您已经在您的机器上下载了最新版本的 Kafka。
|
|||
|
|
|
|||
|
|
## 启动服务器
|
|||
|
|
|
|||
|
|
由于 Kafka 依赖于 ZooKeeper，所以运行前需要先启动 ZooKeeper
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
> bin/zookeeper-server-start.sh config/zookeeper.properties
|
|||
|
|
[2013-04-22 15:01:37,495] INFO Reading configuration from: config/zookeeper.properties (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
|
|||
|
|
...
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
然后，启动 Kafka
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
> bin/kafka-server-start.sh config/server.properties
|
|||
|
|
[2013-04-22 15:01:47,028] INFO Verifying properties (kafka.utils.VerifiableProperties)
|
|||
|
|
[2013-04-22 15:01:47,051] INFO Property socket.send.buffer.bytes is overridden to 1048576 (kafka.utils.VerifiableProperties)
|
|||
|
|
...
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
## 停止服务器
|
|||
|
|
|
|||
|
|
执行所有操作后，可以使用以下命令停止服务器
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
$ bin/kafka-server-stop.sh config/server.properties
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
## 创建主题
|
|||
|
|
|
|||
|
|
创建一个名为 test 的 Topic，这个 Topic 只有一个分区以及一个备份：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
> bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
## 生产者生产消息
|
|||
|
|
|
|||
|
|
运行生产者，然后可以在控制台中输入一些消息，这些消息会发送到服务器：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
> bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test
|
|||
|
|
This is a message
|
|||
|
|
This is another message
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
## 消费者消费消息
|
|||
|
|
|
|||
|
|
启动消费者，然后获得服务器中 Topic 下的消息：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
> bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic test --from-beginning
|
|||
|
|
This is a message
|
|||
|
|
This is another message
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
## 集群部署
|
|||
|
|
|
|||
|
|
复制配置为多份（Windows 使用 copy 命令代理）：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
> cp config/server.properties config/server-1.properties
|
|||
|
|
> cp config/server.properties config/server-2.properties
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
修改配置：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
config/server-1.properties:
|
|||
|
|
broker.id=1
|
|||
|
|
listeners=PLAINTEXT://:9093
|
|||
|
|
log.dir=/tmp/kafka-logs-1
|
|||
|
|
|
|||
|
|
config/server-2.properties:
|
|||
|
|
broker.id=2
|
|||
|
|
listeners=PLAINTEXT://:9094
|
|||
|
|
log.dir=/tmp/kafka-logs-2
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
其中，broker.id 这个参数必须是唯一的。
|
|||
|
|
|
|||
|
|
端口故意配置的不一致，是为了可以在一台机器启动多个应用节点。
|
|||
|
|
|
|||
|
|
根据这两份配置启动三个服务器节点：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
> bin/kafka-server-start.sh config/server.properties &
|
|||
|
|
...
|
|||
|
|
> bin/kafka-server-start.sh config/server-1.properties &
|
|||
|
|
...
|
|||
|
|
> bin/kafka-server-start.sh config/server-2.properties &
|
|||
|
|
...
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
创建一个新的 Topic 使用 三个备份：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
> bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 3 --partitions 1 --topic my-replicated-topic
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
查看主题：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
> bin/kafka-topics.sh --describe --zookeeper localhost:2181 --topic my-replicated-topic
|
|||
|
|
Topic:my-replicated-topic PartitionCount:1 ReplicationFactor:3 Configs:
|
|||
|
|
Topic: my-replicated-topic Partition: 0 Leader: 1 Replicas: 1,2,0 Isr: 1,2,0
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
- leader - 负责指定分区的所有读取和写入的节点。每个节点将成为随机选择的分区部分的领导者。
|
|||
|
|
- replicas - 是复制此分区日志的节点列表，无论它们是否为领导者，或者即使它们当前处于活动状态。
|
|||
|
|
- isr - 是“同步”复制品的集合。这是副本列表的子集，该列表当前处于活跃状态并且已经被领导者捕获。
|