Organizations utilize Apache Kafka, an open-source distributed event streaming technology, to create data pipelines and real-time streaming applications. It is made to effectively handle data streams with high volume, high throughput, and low latency. Because of its dependability, stability, and security, Almalinux 8 is a well-liked Linux distribution that is utilized for enterprise-level applications. Although setting up Apache Kafka on Almalinux 8 can be challenging, it is a crucial step in creating a dependable and expandable real-time streaming platform.

In this article, our Server Management team will explain how to Install Apache Kafka on Almalinux 8.

Prerequisites:

There are a few requirements that must be satisfied before installing Apache Kafka on Almalinux 8. These requirements guarantee a smooth installation and error-free operation of the application. The following conditions must be satisfied before installing Apache Kafka on Almalinux 8:

1. Java: Apache Kafka needs Java 8 or a later version to function. In light of this, you must ensure that Java is set up on your Almalinux 8 system. By entering the following command in the terminal, you can determine whether Java is installed on your system:

java -version

Run the following command in the terminal to install Java if it isn’t already on your system:

sudo dnf install java-1.8.0-openjdk-devel

2. ZooKeeper: Apache Kafka manages and coordinates its distributed nodes using ZooKeeper. You must therefore ensure that ZooKeeper is set up on your Almalinux 8 machine. Run the following command in the terminal to see if ZooKeeper is set up on your system:

systemctl status zookeeper

Run the following command in the terminal to install ZooKeeper if it isn’t already on your system:

sudo dnf install zookeeper-server

3. User Account: Apache Kafka shouldn’t be launched as the root user. As a result, you must make Kafka a user account. Run the following command in the terminal to create a user account for Kafka:

sudo useradd kafka -m

By doing this, Kafka will get a brand-new user account with a home directory.

You may guarantee a trouble-free installation of Apache Kafka on Almalinux 8 by fulfilling these requirements.

Installation Instructions:

Update the system:

• The system must first be updated by running the upcoming command:

sudo dnf update

Install Java:

• Java runtime environment is required for Apache Kafka to function. As a result, we must set up the Java Development Kit (JDK) on the computer. The following command can be used to install JDK 8:

sudo dnf install java-1.8.0-openjdk-devel

Download Kafka:

• The Kafka binaries must then be downloaded from the official Apache Kafka website. By using the following command, we may get the most recent version of Kafka:

sudo dnf install java-1.8.0-openjdk-deve

Extract Kafka:

• The Kafka archive has to be extracted after the download is finished. By issuing the following command, we can accomplish this:

tar -xzf kafka_2.13-3.0.0.tgz

This will create the directory kafka 2.13-3.0.0 where the Kafka archive will be extracted.

Move Kafka:

• The extracted Kafka directory needs to be transferred to the /usr/local/kafka directory next. By issuing the following command, we can accomplish this:

sudo mv kafka_2.13-3.0.0 /usr/local/kafka

Environmental variable set:

• We must include the Kafka bin directory in the PATH environment variable in order to execute Kafka commands from any directory. By accessing the /.bashrc file and adding the following line at the end of the file, we can do this:

export PATH=$PATH:/usr/local/kafka/bin

File exit and saving.

• Updating the bashrc file

To effect the modifications we made, we must reload the Bashrc file. By issuing the following command, we can accomplish this:

source ~/.bashrc

Launch ZooKeeper:

• ZooKeeper is used by Apache Kafka to maintain and synchronize brokers. As a result, we must launch the ZooKeeper server first and then the Kafka server. Run the following command to launch the ZooKeeper server:

zookeeper-server-start.sh config/zookeeper.properties

Note: The Kafka directory (/usr/local/kafka) is where you should run this command from.

Begin Kafka:

• On a new terminal window, enter the following command to launch the Kafka server.

kafka-server-start.sh config/server.properties

Keep in mind that you should also execute this command from the Kafka directory (/usr/local/kafka).

Conclusion:

For real-time data pipelines, streaming analytics, and event-driven systems, Apache Kafka provides a potent distributed streaming platform. We described how to set up Apache Kafka on AlmaLinux 8 in detail in this article. We went over every step required, including updates.

Further to any queries, our Server Support team will guide you.

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