February 2016
Intermediate to advanced
40 pages
1h 32m
English
Content preview from Continuous Delivery with Windows and .NET
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Chapter 5. Monitoring, Metrics, and APM
The CI and deployment pipeline tests give us confidence that our change will work in Production. This confidence comes from a combination of functional testing, covering the user-facing behavior of the system, and technical/performance testing, covering operational aspects of the system. However, after we have released our code to Production, how do we verify that the state of your system is still good and has not degraded? This is where monitoring comes in.
Performance Counters Are Insufficient
Windows provides Performance Counters to allow monitoring of server health. These standard counters will provide information such as memory and CPU usage and some generic .NET framework information such as number of exceptions thrown and time spent in garbage collection. However, these do not tell you if your app is working as expected, only whether the machine is under any load, and custom performance counters are tricky to work with.
Record Application Metrics
Open source tooling can be used very effectively for gathering application metrics. StatsD and Graphite are a common pairing; hosted on Linux, they are cost-effective to set up.
StatsD listens for statistics, like counters and timers, sent over UDP or TCP, and sends aggregates to the Graphite backend. Graphite (Figure 5-1) provides querying and graphing tools to visualize the metrics. Many open source .NET clients exist that make it simpler to add StatsD metrics to your applications; they ...
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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.
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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.