安裝Zookeeper和Kafka叢集
2023-04-17 15:00:11
安裝Zookeeper和Kafka叢集
本文介紹如何安裝Zookeeper和Kafka叢集。為了方便，介紹的是在一臺伺服器上的安裝，實際應該安裝在多臺伺服器上，但步驟是一樣的。
安裝Zookeeper叢集
下載安裝包
從官網上下載安裝包：
curl https://dlcdn.apache.org/zookeeper/zookeeper-3.7.1/apache-zookeeper-3.7.1-bin.tar.gz -o apache-zookeeper-3.7.1-bin.tar.gz
解壓：
tar xvf apache-zookeeper-3.7.1-bin.tar.gz
設定
建立目錄 zk1，然後新增如下設定：
zk1/myid:
1
zk1/zk.config:
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/Users/larry/IdeaProjects/pkslow-samples/other/install-kafka-cluster/src/main/zookeeper/zk1
clientPort=2181
server.1=127.0.0.1:2888:3888
server.2=127.0.0.1:2889:3889
server.3=127.0.0.1:2890:3890
對於zk2和zk3也重複同樣的步驟，並修改相應的設定：
zk2/myid:
2
zk2/zk.config:
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/Users/larry/IdeaProjects/pkslow-samples/other/install-kafka-cluster/src/main/zookeeper/zk2
clientPort=2182
server.1=127.0.0.1:2888:3888
server.2=127.0.0.1:2889:3889
server.3=127.0.0.1:2890:3890
zk3/myid:
3
zk3/zk.config:
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/Users/larry/IdeaProjects/pkslow-samples/other/install-kafka-cluster/src/main/zookeeper/zk3
clientPort=2183
server.1=127.0.0.1:2888:3888
server.2=127.0.0.1:2889:3889
server.3=127.0.0.1:2890:3890
啟動叢集
啟動三個服務如下：
$ ./apache-zookeeper-3.7.1-bin/bin/zkServer.sh start ./zk1/zk.config
ZooKeeper JMX enabled by default
Using config: ./zk1/zk.config
Starting zookeeper ... STARTED
$ ./apache-zookeeper-3.7.1-bin/bin/zkServer.sh start ./zk2/zk.config
ZooKeeper JMX enabled by default
Using config: ./zk2/zk.config
Starting zookeeper ... STARTED
$ ./apache-zookeeper-3.7.1-bin/bin/zkServer.sh start ./zk3/zk.config
ZooKeeper JMX enabled by default
Using config: ./zk3/zk.config
Starting zookeeper ... STARTED
檢視狀態
通過status命令檢視：
$ ./apache-zookeeper-3.7.1-bin/bin/zkServer.sh status ./zk1/zk.config
ZooKeeper JMX enabled by default
Using config: ./zk1/zk.config
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: follower
$ ./apache-zookeeper-3.7.1-bin/bin/zkServer.sh status ./zk2/zk.config
ZooKeeper JMX enabled by default
Using config: ./zk2/zk.config
Client port found: 2182. Client address: localhost. Client SSL: false.
Mode: leader
$ ./apache-zookeeper-3.7.1-bin/bin/zkServer.sh status ./zk3/zk.config
ZooKeeper JMX enabled by default
Using config: ./zk3/zk.config
Client port found: 2183. Client address: localhost. Client SSL: false.
Mode: follower
連線其中一個服務並新增資料：
$ ./apache-zookeeper-3.7.1-bin/bin/zkCli.sh -server localhost:2181
[zk: localhost:2181(CONNECTED) 0] create /pkslow
Created /pkslow
[zk: localhost:2181(CONNECTED) 1] create /pkslow/website www.pkslow.com
Created /pkslow/website
連線另外一個服務，並檢視資料，發現與之前建立的是一樣的：
$ ./apache-zookeeper-3.7.1-bin/bin/zkCli.sh -server localhost:2182
[zk: localhost:2182(CONNECTED) 1] get /pkslow/website
www.pkslow.com
目錄結構如下：
安裝Kafka叢集
下載安裝包
通過官網下載如下：
curl https://downloads.apache.org/kafka/3.4.0/kafka_2.13-3.4.0.tgz -o kafka_2.13-3.4.0.tgz
解壓安裝包：
tar -xzf kafka_2.13-3.4.0.tgz
設定
Broker 1的設定如下：
broker.id=1
port=9091
listeners=PLAINTEXT://:9091
zookeeper.connect=127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183
log.dirs=/Users/larry/IdeaProjects/pkslow-samples/other/install-kafka-cluster/src/main/kafka/kafka1/kafka-logs
Broker 2的設定如下：
broker.id=2
port=9092
listeners=PLAINTEXT://:9092
zookeeper.connect=127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183
log.dirs=/Users/larry/IdeaProjects/pkslow-samples/other/install-kafka-cluster/src/main/kafka/kafka2/kafka-logs
Broker 3的設定如下：
broker.id=3
port=9093
listeners=PLAINTEXT://:9093
zookeeper.connect=127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183
log.dirs=/Users/larry/IdeaProjects/pkslow-samples/other/install-kafka-cluster/src/main/kafka/kafka3/kafka-logs
目錄結構如下：
啟動叢集
啟動kafka服務如下：
./kafka_2.13-3.4.0/bin/kafka-server-start.sh ./kafka1/server.properties
./kafka_2.13-3.4.0/bin/kafka-server-start.sh ./kafka2/server.properties
./kafka_2.13-3.4.0/bin/kafka-server-start.sh ./kafka3/server.properties
檢查如測試
建立topic：
$ kafka_2.13-3.4.0/bin/kafka-topics.sh --create --topic pkslow-topic --bootstrap-server localhost:9091,localhost:9092,localhost:9093 --partitions 3 --replication-factor 3
Created topic pkslow-topic.
列出topic：
$ kafka_2.13-3.4.0/bin/kafka-topics.sh --list --bootstrap-server localhost:9091,localhost:9092,localhost:9093
pkslow-topic
檢視topic：
$ kafka_2.13-3.4.0/bin/kafka-topics.sh --describe --topic pkslow-topic --bootstrap-server localhost:9091,localhost:9092,localhost:9093
Topic: pkslow-topic TopicId: 7CLy7iZeRvm8rCrn8Dw_mA PartitionCount: 3 ReplicationFactor: 3 Configs:
Topic: pkslow-topic Partition: 0 Leader: 3 Replicas: 3,1,2 Isr: 3,1,2
Topic: pkslow-topic Partition: 1 Leader: 1 Replicas: 1,2,3 Isr: 1,2,3
Topic: pkslow-topic Partition: 2 Leader: 2 Replicas: 2,3,1 Isr: 2,3,1
生產者發訊息到brokers：
$ kafka_2.13-3.4.0/bin/kafka-console-producer.sh --broker-list localhost:9091,localhost:9092,localhost:9093 --topic pkslow-topic
>My name is Larry Deng.
>My website is www.pkslow.com.
>
消費者從brokers收訊息：
$ kafka_2.13-3.4.0/bin/kafka-console-consumer.sh --bootstrap-server localhost:9091,localhost:9092,localhost:9093 --topic pkslow-topic --from-beginning
My name is Larry Deng.
My website is www.pkslow.com.
程式碼
設定可以參考 GitHub pkslow-samples