September 2025
Beginner to intermediate
386 pages
9h 49m
English
Content preview from The Definitive Guide to OpenSearch
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
11
Migrate to OpenSearch
In the previous chapter, we explored how to build a search application using OpenSearch—from setting up the cluster to writing queries and integrating with a UI. That hands-on experience showed how powerful and approachable OpenSearch can be when building real-world applications. But before adopting any new technology at scale, especially one that touches search infrastructure and data pipelines, it’s important to understand why it’s worth investing in. This chapter is focused on that bigger picture—beginning with why organizations are increasingly migrating to OpenSearch for both new and existing workloads.
In this chapter, we will explore the following:
- Why OpenSearch?
- Stages of migration
- Proof of concept (POC)
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