Kafka series deploys Kafka

Background: Ubuntu server, kakfa cluster installed

First, install Java

1. Its installation

$ sudo apt update
$ sudo apt-get install openjdk-8-jdk
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2. Verifying the JDK version

$ java -version
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2. Install ZooKeeper

1. Example Create a ZooKeeper data storage directory

$ sudo mkdir -p /data/zookeeper
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2. Download the zookeeper zookeeper.apache.org/releases.ht…

$$CD/opt $sudo wget https://mirrors.bfsu.edu.cn/apache/zookeeper/zookeeper-3.7.0/apache-zookeeper-3.7.0-bin.tar.gz Sudo tar XVF - apache - they are - 3.7.0 - bin. Tar. GzCopy the code

3. Modifying a Configuration File

$ sudo nano /opt/zookeeper/conf/zoo.cfg
        tickTime = 2000
        dataDir = /data/zookeeper
        clientPort = 2181
        initLimit = 5
        syncLimit = 2
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4. Start the ZooKeeper service

$ sudo bin/zkServer.sh start
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Start and view the log command

$ bin/zkServer.sh start-foreground
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5. The ZooKeeper service is connected

$sudo bin/ zkcli. sh -server 127.0.0.1:2181Copy the code

The connection to ZooKeeper is displayed. You can enter related commands to perform operations.

• Help to view a list of available commands
• Quit, close the session

6. None example Stop the ZooKeeper service

$ sudo bin/zkServer.sh stop
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Install Kafka

1. Download the kafka kafka.apache.org/downloads

$sudo wget https://mirrors.bfsu.edu.cn/apache/kafka/2.8.0/kafka_2.12-2.8.0.tgz $sudo tar - XZF kafka_2. 12-2.8.0. TGZCopy the code

2. Background Startup Service

$ sudo bin/kafka-server-start.sh -daemon config/server.properties
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3. Disable the Kafka service

$ bin/kafka-server-stop.sh config/server.properties
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Four, problem,

1. Kafka fails to be started, and an error message is displayed indicating that kafka is added to the wrong ZooKeeper cluster