The only requirement for installing Elasticsearch is a recent version of Java. Preferably, you should install the latest version of the official Java from www.java.com.
You can get the latest version of Elasticsearch from elastic.co/downloads/elasticsearch.
To install Elasticsearch, download and extract the archive file for your platform. For more information, see the Installation topic in the Elasticsearch Reference.
Marvel is a management and monitoring tool for Elasticsearch, which is free for development use. It comes with an interactive console called Sense, which makes it easy to talk to Elasticsearch directly from your browser.
Many of the code examples in the online version of this book include a View in Sense link. When clicked, it will open up a working example of the code in the Sense console. You do not have to install Marvel, but it will make this book much more interactive by allowing you to experiment with the code samples on your local Elasticsearch cluster.
./bin/plugin -i elasticsearch/marvel/latest
Marvel can also be installed using a manual process if you don’t have internet connectivity.
You probably don’t want Marvel to monitor your local cluster, so you can disable data collection with this command:
echo 'marvel.agent.enabled: false' >> ./config/elasticsearch.yml