Book Image

Elasticsearch Indexing

By : Huseyin Akdogan
Book Image

Elasticsearch Indexing

By: Huseyin Akdogan

Overview of this book

Beginning with an overview of the way ElasticSearch stores data, you’ll begin to extend your knowledge to tackle indexing and mapping, and learn how to configure ElasticSearch to meet your users’ needs. You’ll then find out how to use analysis and analyzers for greater intelligence in how you organize and pull up search results – to guarantee that every search query is met with the relevant results! You’ll explore the anatomy of an ElasticSearch cluster, and learn how to set up configurations that give you optimum availability as well as scalability. Once you’ve learned how these elements work, you’ll find real-world solutions to help you improve indexing performance, as well as tips and guidance on safety so you can back up and restore data. Once you’ve learned each component outlined throughout, you will be confident that you can help to deliver an improved search experience – exactly what modern users demand and expect.
Table of Contents (15 chapters)
Elasticsearch Indexing
About the Author
About the Reviewer


A snapshot is a backup of your cluster index(s). Snapshots are stored in a repository that has been registered before. A repository can contain multiple snapshots of the same cluster. A snapshot can be created by executing the following command:

curl -XPUT localhost:9200/_snapshot/my_backup/first_snapshot

The _snapshot is REST endpoint for snapshot operations. Its second parameter is a unique snapshot name. The preceding command creates a snapshot of all open and started indices in the cluster. If you want to back up a certain index, you must specify the list of indices in the body of the request:

curl -XPUT localhost:9200/_snapshot/my_backup/first_snapshot -d '{
  "indices": "my_index",
  "ignore_unavailable": "true",
  "include_global_state": false,
  "partial": true

The indices parameter supports multi-index syntax; that means you can separate the index names with commas or you can use a wildcard, like *. Default value of the ignore_unavailable parameter is true. It will cause...