Book Image

AWS Certified Developer - Associate Guide

By : Vipul Tankariya, Bhavin Parmar
Book Image

AWS Certified Developer - Associate Guide

By: Vipul Tankariya, Bhavin Parmar

Overview of this book

AWS Certified Developer - Associate Guide starts with a quick introduction to AWS and the prerequisites to get you started. Then, this book gives you a fair understanding of core AWS services and basic architecture. Next, this book will describe about getting familiar with Identity and Access Management (IAM) along with Virtual private cloud (VPC). Moving ahead you will learn about Elastic Compute cloud (EC2) and handling application traffic with Elastic Load Balancing (ELB). Going ahead you we will talk about Monitoring with CloudWatch, Simple storage service (S3) and Glacier and CloudFront along with other AWS storage options. Next we will take you through AWS DynamoDB – A NoSQL Database Service, Amazon Simple Queue Service (SQS) and CloudFormation Overview. Finally, this book covers understanding Elastic Beanstalk and overview of AWS lambda. At the end of this book, we will cover enough topics, tips and tricks along with mock tests for you to be able to pass the AWS Certified Developer - Associate exam and develop as well as manage your applications on the AWS platform.
Table of Contents (29 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Dedication
Preface
Index

Monitoring RDS instances


Once an Amazon RDS instance is created as per the present need, it is very important to observe its performance with constantly changing business requirements and application loads. It is possible to monitor the instance's CPU utilization, DB connections, free storage space, free memory, and many other parameters. It helps to identify bottlenecks and will also give you the opportunity to minimize monthly billing by reducing the resource size if it is underutilized.

An alarm can be configured to take action on a specified threshold. For example, if CPU usage is above 70% for a specified consecutive time period, then send SNS notifications to the DBA. Such an alarm can be created either from the CloudWatch dashboard or from the Amazon RDS dashboard.

To create a CloudWatch alarm from the Amazon RDS dashboard, perform the following steps:

  1. Go to the Amazon RDS dashboard and select the desired DB instance from the list of running DB instances.
  2. Click Show Monitoring to get...