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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Weighted transition pattern
The previous patterns, up until this point, either help to mitigate encountered problems or give unique solutions to possible problems. We have not discussed a lot of patterns that help to test our infrastructure.
Perhaps our system consists of a web server and a database server, as is often the case. Upgrading these can be done incrementally with zero downtime, as we've shown in previous patterns, but we have only discussed ways to do a full upgrade.
Let us suppose that some code changes are pending deployment on the web instance that requires a migration on the database instance. This is a hefty change that might cause a lot of headaches if it is not tested thoroughly before being released into a production environment. ...
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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.