Book Image

Infrastructure Monitoring with Amazon CloudWatch

By : Ewere Diagboya
Book Image

Infrastructure Monitoring with Amazon CloudWatch

By: Ewere Diagboya

Overview of this book

CloudWatch is Amazon’s monitoring and observability service, designed to help those in the IT industry who are interested in optimizing resource utilization, visualizing operational health, and eventually increasing infrastructure performance. This book helps IT administrators, DevOps engineers, network engineers, and solutions architects to make optimum use of this cloud service for effective infrastructure productivity. You’ll start with a brief introduction to monitoring and Amazon CloudWatch and its core functionalities. Next, you’ll get to grips with CloudWatch features and their usability. Once the book has helped you develop your foundational knowledge of CloudWatch, you’ll be able to build your practical skills in monitoring and alerting various Amazon Web Services, such as EC2, EBS, RDS, ECS, EKS, DynamoDB, AWS Lambda, and ELB, with the help of real-world use cases. As you progress, you'll also learn how to use CloudWatch to detect anomalous behavior, set alarms, visualize logs and metrics, define automated actions, and rapidly troubleshoot issues. Finally, the book will take you through monitoring AWS billing and costs. By the end of this book, you'll be capable of making decisions that enhance your infrastructure performance and maintain it at its peak.
Table of Contents (16 chapters)
Section 1: Introduction to Monitoring and Amazon CloudWatch
Section 2: AWS Services and Amazon CloudWatch

Understanding CloudWatch metrics on Amazon S3

In the introductory section of this chapter, we talked about storage devices. One of the storage devices mentioned was Amazon S3. We discussed that Amazon S3 is an object store that can store almost any number of files uploaded to it. Amazon S3 is exceptionally durable, with an SLA of 99.999999999%. This number, according to the SLA calculator, means that there is zero downtime daily, weekly, monthly, quarterly, and even yearly. In this kind of service, you might not be monitoring for the availability of your files since AWS has promised that zero downtime will occur.

In S3, you might not find the fancy metrics and dashboard that are used to analyze and understand the performance of the system. Instead, S3 offers a more unique way of observing what needs to be monitored and measured. For every S3 bucket, there is a Metrics tab that shows just two graphs:

  • Total bucket size
  • Total number of objects

This is...