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Elasticsearch Server - Third Edition by Marek Rogoziński, Rafał Kuć

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Summary

In this chapter, we learned what full text search is and the contribution Apache Lucene makes to this. In addition to this, we are now familiar with the basic concepts of Elasticsearch and its top-level architecture. We used the Elasticsearch REST API not only to index data, but also to update, retrieve, and finally delete it. We've learned what versioning is and how we can use it for optimistic locking in Elasticsearch. Finally, we searched our data using the simple URI query.

In the next chapter, we'll focus on indexing our data. We will see how Elasticsearch indexing works and what the role of primary shards and replicas is. We'll see how Elasticsearch handles data that it doesn't know and how to create our own mappings—the JSON structure ...

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