How to Install Druid on Alpine Linux Latest

This tutorial will guide you through the process of installing Druid, an open-source distributed data store, on Alpine Linux Latest.

Prerequisites

Before starting the installation process, make sure the following prerequisites are met:

• A functioning instance of Alpine Linux Latest
• Sudo or root access

Step 1: Install Java

Druid requires Java to be installed on your system.

sudo apk add openjdk8

This command will install OpenJDK 8, which is the recommended version for Druid.

Step 2: Download and Extract Druid

1. Visit http://druid.io/downloads.html to download the latest version of Druid.
2. Extract the downloaded file to a desired location.

wget https://downloads.apache.org/druid/0.20.2/apache-druid-0.20.2-bin.tar.gz
sudo tar -zxvf apache-druid-0.20.2-bin.tar.gz -C /usr/local/

This command will download and extract Apache Druid version 0.20.2 to /usr/local/.

Step 3: Configure Druid

1. Navigate to the Druid installation directory.

cd /usr/local/apache-druid-0.20.2/

2. Configure the druid-env.sh file.

sudo cp conf/druid/_common/conf/druid-env.sh conf/druid/_common/conf/druid-env.sh.orig
sudo sed -i 's|-Xmx256m|-Xmx512m|' conf/druid/_common/conf/druid-env.sh
sudo sed -i 's|JAVA_HOME=.*|JAVA_HOME=/usr/lib/jvm/default-jvm|' conf/druid/_common/conf/druid-env.sh

This command will configure the druid-env.sh file to:

• Increase the maximum heap size from 256m to 512m.
• Set the JAVA_HOME environment variable to the location of the installed Java.

Step 4: Start Druid

1. Navigate to the Druid installation directory.

cd /usr/local/apache-druid-0.20.2/

2. Start Druid.

sudo bin/start-micro-quickstart

This command will start Druid in a single-node configuration for testing.

Conclusion

You have successfully installed Druid on Alpine Linux Latest. You can now explore Druid's features and capabilities by connecting to the Druid console at http://localhost:8888/console.html. To stop Druid, simply run bin/stop-micro-quickstart in the Druid installation directory.

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