January 2013
Beginner to intermediate
624 pages
17h 18m
English
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Chapter 22. Leveling Up in the Process Quest
Code hot-loading is simple in Erlang. You recompile, make a fully qualified function call, and then enjoy. However, doing it the right (and safe) way is much more difficult.
A plethora of things can go wrong in practice.
In this chapter, we’ll explore the problems that hot code loading can bring and some principles that prove helpful to solve them. Then we’ll go through a practical demonstration of how to take an existing OTP release, upgrade it, and reload the new version of it while it runs with the help of OTP mechanisms, through appups and relups (application and release upgrades).
Note
This chapter does not include all of the code used in the examples. Before you start this chapter, you might want ...
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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.