AWS For Developers For Dummies
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Monitoring with Amazon CloudWatch lets you determine whether the application environment is sufficient for your application. For example, you may decide that you require a different instance type because of the amount of traffic. To monitor your application, choose the Monitoring option in the Navigation pane.

monitor app AWS Monitor your application to determine when it requires environment changes.

The test application uses hardly any of the resources provided to it, so you don’t need to make any changes. Of course, this is an expected outcome given that you’re the only one with access to the application. The line graphs below the text output show graphically how many resources your application uses. You can also change the monitoring criteria for longer monitoring sessions (to show generalized trends over a 24-hour period, for example).

Each of the graphs has a button associated with it. When you click the button, you see a page for creating an alarm. Each alarm entry must have a unique name. You then provide a monitoring period, metric-specific thresholds, and notification information. When you complete the form, click Add. You can see the alarms you set for your EB application by choosing Alarms in the Navigation pane. When an alarm occurs, a message about it comes to you through the notification method (such as an email message) that you selected.

app alarms AWS Set alarms as needed to prevent failures because of lack of resources.

About This Article

This article is from the book:

About the book author:

John Mueller is an author and technical editor who has written 103 books. Some of his current works include Python development books. He has also written AWS For Admins For Dummies, which provides administrators a great place to start with Amazon Web Services (AWS). John has had an interest in AWS since its inception. In fact, he wrote Mining Amazon Web Services based on that humble beginning. Be sure to read John's blog at

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