What is Amazon CloudWatch?
Amazon CloudWatch allows you to monitor your Amazon Web Services (AWS) apps and resources in real time. CloudWatch may be used to collect and track metrics, which are characteristics you can measure for your resources and apps.
Every AWS service you use has metrics automatically displayed on the CloudWatch home page. Additionally, you may design your own dashboards to show analytics about your own apps as well as bespoke sets of metrics of your choosing.
When a threshold is crossed, you may set up alerts that monitor metrics and send messages or that automatically modify the resources you are keeping an eye on. For instance, you may keep an eye on your Amazon EC2 instances‘ CPU utilization and disk reads and writes, and then use that information to decide whether to start more instances to accommodate the increasing strain. To save money, you may also utilize this data to halt instances that aren’t being used.
CloudWatch gives you system-wide insight into operational health, application performance, and resource usage.
How Amazon CloudWatch works
In essence, Amazon CloudWatch is a storehouse for measurements. Metrics are entered into the repository by an AWS service like Amazon EC2, and statistics are retrieved using those metrics. Statistics on your own custom metrics may also be retrieved if you add them to the repository.
Metrics may be used to compute statistics, and the CloudWatch interface can then display the data graphically.
When specific conditions are fulfilled, you may set up alert actions to stop, start, or terminate an Amazon EC2 instance. Additionally, you may set up alerts to start Amazon Simple Notification Service (Amazon SNS) and Amazon EC2 Auto Scaling on your behalf. See Alarms for further details on setting up CloudWatch alarms.
Resources for AWS Cloud computing are kept in highly accessible data center buildings. Each data center facility is situated in a particular geographic area, referred to as a Region, to offer extra scalability and dependability. To achieve the highest level of failure isolation and stability, each region is designed to be totally separated from the others. Although metrics are kept independently in Regions, you may combine information from many Regions using CloudWatch’s cross-Region feature.
Why Use CloudWatch?
A service called Amazon CloudWatch keeps an eye on apps, reacts to changes in performance, maximizes resource use, and offers information on the state of operations. CloudWatch provides a consistent picture of operational health, enables users to create alarms, and automatically responds to changes by gathering data from various AWS services.
Advantages Of Amazon CloudWatch
Visualize and analyze your data with end-to-end observability
Utilize robust visualization tools to gather, retrieve, and examine your resource and application data.
Operate efficiently with automation
Utilize automated actions and alerts that are programmed to trigger at preset thresholds to enhance operational effectiveness.
Quickly obtain an integrated view of your AWS or other resources
Connect with over 70 AWS services with ease for streamlined scalability and monitoring.
Proactively monitor and get actional insights to enhance end user experiences
Use relevant information from your CloudWatch dashboards’ logs and analytics to troubleshoot operational issues.
Amazon CloudWatch Use cases
Monitor application performance
To identify and fix the underlying cause of performance problems with your AWS resources, visualize performance statistics, generate alarms, and correlate data.
Perform root cause analysis
To expedite debugging and lower the total mean time to resolution, examine metrics, logs, log analytics, and user requests.
Optimize resources proactively
By establishing actions that take place when thresholds are reached according to your requirements or machine learning models, you may automate resource planning and save expenses.
Test website impacts
By looking at images, logs, and web requests at any moment, you can determine precisely when and how long your website is affected.
