AWS Administration – The Definitive Guide by AWS Administration – The Definitive Guide

Author:AWS Administration – The Definitive Guide
Language: eng
Format: mobi, epub
Publisher: Packt Publishing

CloudWatch limits and costs

CloudWatch, by default, monitors all of your instances, volumes, and Elastic Load Balancers (ELB) at a regular five-minute interval for absolutely no charge at all. This is CloudWatch's default behavior; however, you can always change the interval to as low as a minute if you need it. Changing the interval to a minute will cost you approximately $3.50 per instance per month. Besides this, CloudWatch also provides 10 metrics, 10 alarms, a thousand e-mail notifications using SNS, and up to a million API requests each month for no charge at all! Additional metrics and alarms are charged approximately $0.50 and $0.10, respectively, on a monthly basis. CloudWatch also provides you with free 5 GB of incoming data and 5 GB of data archiving.

From a limits point of view, here are a few important limits that you need to keep in mind when working with CloudWatch:

CloudWatch preserves metric data for up to 2 weeks, after which it is deleted

The maximum period value that you can specify is 1 day or 86,400 seconds

You can create up to 5,000 alarms per AWS account, with each alarm supporting up to five actions

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