Welcome to Advanced Elasticsearch 7.0. Elasticsearch quickly evolved from version 1.0.0, released in February 2014, to version 6.0.0 GA, released in November 2017. Nonetheless, we will use 7.0.0 release as the base of this book. Without making any assumptions about your knowledge of Elasticsearch, this opening chapter provides setup instructions with the Elasticsearch development environment. To help beginners complete some basic features within a few minutes, several steps are given to launch the new version of an Elasticsearch server. An architectural overview and some core concepts will help you to understand the workflow within Elasticsearch. It will help you straighten your learning path.
Keep in mind that you can learn the potential benefits by reading the API conventions section and becoming familiar with it. The section New features
following this one is a list of new features you can explore in the new release. Because major changes are often introduced between major versions, you must check to see whether it breaks the compatibility and affects your application. Go through the Migration between versions section to find out how to minimize the impact on your upgrade project.
In this chapter, you'll learn about the following topics:
- Preparing your environment
- Running Elasticsearch
- Talking to Elasticsearch
- Elasticsearch architectural overview
- Key concepts
- API conventions
- New features
- Breaking changes
- Migration between versions