AWS- Cloud Watch

 Cloud Watch

It is an AWS monitoring and observability service.

You get a unified view of operational health and gain complete visibility of your AWS resources, applications, and services running on AWS and on-premises

CloudWatch provides you with data and actionable insights to monitor your applications, respond to system-wide performance changes, and optimize resource utilization. 

It natively integrates with more than 70 AWS services, such as Amazon EC2, Amazon DynamoDB, Amazon S3, Amazon ECS, Amazon EKS, and AWS Lambda.

CloudWatch provides automatic dashboards, data with one-second granularity, and up to 15 months of metrics storage and retention. 

Cloud Watch Log Groups

https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/QuickStartEC2Instance.html

A log stream is a sequence of log events that share the same source. Each separate source of logs in CloudWatch Logs makes up a separate log stream.

A log group is a group of log streams that share the same retention, monitoring, and access control settings. You can define log groups and specify which streams to put into each group. There is no limit on the number of log streams that can belong to one log group.

Use Cases

• Monitor and troubleshoot infrastructure
• Improve mean time to resolution
• Optimize resources proactively
• Monitor applications