August 2019
Intermediate to advanced
560 pages
13h 41m
English
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Index aliases
The index aliases API allows you to create another name for an index or multiple indices and then use it as an alternative name in an index operation. The alias APIs give us flexibility in the following aspects:
- Re-indexing with zero downtime
- Grouping multiple indices
- Views on a subset of documents
For a simple case, use _alias. For complex operations, _aliases. In this section, we will introduce the basic index alias CRUD APIs and practice each one:
- Create Index Alias API: Create an alternative name for an index or multiple indices. The following screenshot shows the creation of the index alias, cf_etf_1, for the index, cf_etf:
The syntax of the index (that is, cf_etf) can be * | _all | glob pattern | name1
,name2
, ...
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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.Julian F.
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.
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.Amir M.
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.