Druid is a real-time analytical data store designed to quickly process large volumes of data. If you're looking for a tool to help you query data in real-time, Druid is a great option to consider. In this tutorial, we'll walk you through the steps to install Druid on Elementary OS.
Before getting started, ensure that you have the following:
Druid is a Java application, so it needs a Java Virtual Machine (JVM) to run. You can install the default version of OpenJDK using the following command:
sudo apt install default-jdk
To verify that Java has been installed successfully, run the following command:
java -version
This should display the version of OpenJDK installed on your system.
Druid uses Apache ZooKeeper as a distributed coordination service. Install ZooKeeper using the following command:
sudo apt install zookeeperd
Once installed, start ZooKeeper using the following command:
sudo systemctl start zookeeper
To verify that ZooKeeper is running, run the following command:
sudo systemctl status zookeeper
To install Druid, follow the steps below:
Go to http://druid.io/ and download the latest version of Druid.
Extract the downloaded file:
tar -xzf druid-*.tar.gz
Move the extracted directory to the appropriate location (e.g., /opt):
sudo mv druid-*/ /opt/druid
Set the DRUID_HOME environment variable by adding the following line to your ~/.bashrc file:
export DRUID_HOME=/opt/druid
Then, run the following command to apply the changes:
source ~/.bashrc
That's it! You've successfully installed Druid on Elementary OS. Now, you can start exploring the powerful features of Druid to handle your data analysis needs.
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