February 2017
Intermediate to advanced
696 pages
12h 24m
English
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Reindexing from a remote cluster
The snapshot and restore APIs are very fast and the preferred way to back up data, but they have some limitations, such as:
- The backup is a safe Lucene index copy, so it depends on the Elasticsearch version used. If you are switching from a version of Elastisearch that is prior to version 5.x, it's not possible to restore old indices.
- It's not possible to restore backups of a newer Elasticsearch version in an older version. The restore is only forward-compatible.
- It's not possible to restore partial data from a backup.
To be able to copy data in this scenario, the solution is to use the reindex API using a remote server.
Getting ready
You need an up-and-running Elasticsearch installation as we described in the Downloading ...
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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.Addison B.
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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.