What is ZooKeeper (very rough) Apache ZooKeeper storage hierarchal structure. Refer to ZNode.
https://de.slideshare.net/sauravhaloi/introduction-to-apache-zookeeper
Install ZooKeeper My environment Ubuntu 20.04 Pre-installation Install java first.
sudo apt update sudo apt upgrade -y sudo apt install -y openjdk-11-jdk Crete ZooKeeper user.
sudo useradd -r -s /bin/bash zk Install ZooKeeper on nodes Download link https://zookeeper.apache.org/releases.html
sudo su cd /opt curl https://mirror.netcologne.de/apache.org/zookeeper/zookeeper-3.6.2/apache-zookeeper-3.6.2-bin.tar.gz -O tar xvf apache-zookeeper-3.6.2-bin.tar.gz mkdir /var/lib/zookeeper cd apache-zookeeper-3.6.2-bin cp conf/zoo_sample.cfg conf/zoo.cfg Edit conf/zoo.