August 2018
Intermediate to advanced
384 pages
10h 46m
English
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Chapter 11. Monitoring
Monitoring dynamic instances can be a challenge. The classic monitoring tools expect your systems to be around for a long time, and can have difficulty recognizing the difference between an instance that has failed and an instance that has been terminated as part of an Auto Scaling event or other planned termination in response to changes in capacity requirements.
AWS provides its own CloudWatch monitoring service, designed from the ground up to work in such an environment. Additionally, with some planning and custom scripting, most traditional monitoring tools can be used to monitor dynamic instances without spamming operators with false alarms when instances are terminated. This chapter showcases some of these methods as well as how to best use Amazon’s CloudWatch service, and how the two can be integrated.
Note
A cottage industry of cloud-based monitoring tools has sprung up around AWS and other cloud providers. There are far too many tools to mention in this book, and each has its own strengths and weaknesses.
The tighter these tools integrate with AWS, the more useful they are. Most advanced tools automatically query the EC2 tags associated with instances and use them to aggregate metrics. This allows the same tool to generate a high-level overview of your application across all EC2 regions, or drill down to view the performances of instances in a particular availability zone.
Why Are You Monitoring?
There are many reasons for setting up a monitoring system ...
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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.