April 2016
Intermediate to advanced
172 pages
4h 17m
English
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Solving problems with cache
We spent a lot of time on providing good caching, that is, saving intermediate results and serving saved copies instead of recalculating from scratch for the same requests. This works perfectly only in a perfect world (for example, a pure functional world where functions and, by extension, GET/HEAD HTTP requests do not have side effects). In the real world, two equal requests may sometimes lead to different responses. There are two basic reasons for it: the earlier-mentioned side effects, which change the state despite the perceived idempotence of GET/HEAD, or flawed equality relationship between requests. A good example of this is ignoring wall time when the response depends on it.
Such problems usually manifest themselves ...
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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.