June 2013
Intermediate to advanced
236 pages
4h 33m
English
Content preview from Express Web Application DevelopmentBecome 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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Ensuring uptime
We have seen that if a worker process crashes, a new one can be forked by the master process, while the remaining workers can handle the current requests. But what happens when the master process itself crashes?
Uptime concerns are a unique aspect of Node apps, but with proper knowledge and the right tools this concern can be addressed to satisfaction.
Let's look at two popular tools for ensuring Express apps are up and running, with as little downtime as possible.
Forever
Ensuring a Node app is restarted when it goes down can easily be accomplished with the help of a Node package called forever.
Install forever as global module, so that we can use it as a command-line tool:
$ npm install forever -g
After forever is installed, type ...
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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.