Installing ZooKeeper on Debian Latest

ZooKeeper is a distributed coordination service used for maintaining configuration information, naming, and providing distributed synchronization. In this tutorial, we will be installing ZooKeeper on Debian Latest.

Prerequisites

Before you begin, make sure you have the following:

  • A server running Debian Latest
  • Root access to the server
  • Java 8 or higher installed on the server

Step 1: Download ZooKeeper

  1. Open your terminal.
  2. Go to the ZooKeeper website and download the tarball for the latest stable release.
  3. cd ~ - Navigate to your home directory.
  4. curl -O https://mirror.olnevhost.net/pub/apache/zookeeper/zookeeper-<version>/zookeeper-<version>.tar.gz - Replace the in the url with your downloaded file's version.

Step 2: Extract ZooKeeper

  1. sudo mkdir -p /opt/zookeeper - Create a directory where we will install ZooKeeper.
  2. sudo tar -xvzf zookeeper-<version>.tar.gz -C /opt/zookeeper --strip 1 - Extract the downloaded tarball to the directory for ZooKeeper.

Step 3: Configure ZooKeeper

  1. sudo cp /opt/zookeeper/conf/zoo_sample.cfg /opt/zookeeper/conf/zoo.cfg - Copy the default configuration file.

  2. sudo vim /opt/zookeeper/conf/zoo.cfg - Edit the configuration using the vim editor.

    Replace the data directory path to a directory with sufficient space in your system.

  3. Set the number of connections according to your usage. You can find more about the configuration options here

Step 4: Create ZooKeeper user

  1. sudo adduser --system --no-create-home --disabled-password --disabled-login zookeeper - Add a system user named zookeeper.

Step 5: Start ZooKeeper Service

  1. cd /opt/zookeeper - Navigate to the ZooKeeper directory.
  2. sudo bin/zkServer.sh start - Start the ZooKeeper service.
  3. Check if the service is running by typing the following command in your terminal:
    sudo bin/zkServer.sh status
    The output should show that the ZooKeeper service is running.

Conclusion

In this tutorial, we have installed ZooKeeper on Debian Latest, configured it and started the ZooKeeper service. You can now use ZooKeeper for synchronization and coordination within distributed applications.