September 2015
Intermediate to advanced
198 pages
4h 52m
English
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Applying back pressure
We discussed back pressure briefly in the last chapter. Without back pressure we cannot build a reasonable load-tolerant system with predictable stability and performance. In this section, we will see how to apply back pressure in different scenarios in an application. At a fundamental level, we should have a threshold of a maximum number of concurrent jobs in the system and, based on that threshold, we should reject new requests above a certain arrival rate. The rejected messages may either be retried by the client or ignored if there is no control over the client. When applying back pressure to user-facing services, it may be useful to detect system load and deny auxiliary services first in order to conserve capacity and ...
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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.