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What is Amazon CloudWatch?

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What is Amazon CloudWatch?

AWS CloudWatch is a monitoring service that provides you with information about the performance of your AWS resources and applications running hybrid or on premise. It also enables you to create custom metrics and monitor them on an ongoing or scheduled basis.

 

The Amazon CloudWatch API allows third-party developers to integrate their applications with these monitoring features and provide their users with a richer experience, while providing them the benefits offered by AWS such as cost savings and scalability. CloudWatch is a fully managed service, meaning that it does not require you to deploy or manage your own infrastructure.


Amazon CloudWatch Categories:

CloudWatch has a large number of metrics available, which are grouped into categories such as uptime, traffic and memory. It also has custom performance metrics, which enable you to monitor your applications and the underlying infrastructure by using these new metrics instead of simple averages. You can create custom metrics, which give you finer granularity than other metrics. You can also monitor a whole application or only certain parts of it, such as a specific part of the page, a sub-section or even the entire application.


What types of monitoring can Amazon CloudWatch be used for?  

Amazon CloudWatch is an AWS service that can monitor the resources that are running in your AWS account.  With just a few minutes of configuration, you’ll be able to get data on CPU Utilization, Network In and Out traffic, disk read and write rates, HTTP Requests Queue Size, Disk Queue length etc.

Looking at the graphs and tables on Amazon CloudWatch, you can see what your resource usage is like overall or at all of your resources.

 

But what if I have more than one resource in my account?  

The resource is your AWS account, and you have multiple resources such as EC2 instances, S3 buckets, SQS queues etc.  You can set up Amazon CloudWatch to monitor all of these resources simultaneously from a single dashboard.

However, we will focus on monitoring a single resource, i.e. your Amazon EC2 instance and will quickly look at the other types of resources that can be monitored later.

 


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