April 2015
Intermediate to advanced
228 pages
4h 52m
English
Content preview from Implementing Cloud Design Patterns for AWSBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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In-memory cache pattern
While it is important to create a database in which the data is highly available, there are other optimizations possible, depending on the structure. If an application is very read-heavy but does not write very often, it might make sense to use a read-only database with splitting, as designed in the previous pattern. It might also serve the user or consuming system to cache the data so that it does not have to be retrieved on every request.
Consider an application that uses pagination to display information to a user. A typical query might look like SELECT * FROM products WHERE category=23 LIMIT 50 OFFSET 1000;. At first glance, this might be acceptable, but for this particular query, the application will execute and retrieve ...
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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.