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by KAUSTUBH SHARMA on Sept. 13, 2021, 12:17 p.m. with 896 views

CLOUDWATCH EVENTS: - Respond to actions (changes in your AWS environment).Example :- Lambda being created, CodePipeline state changes, etc.

CLOUDWATCH ALARMS:- Watch a single metric and respond to changes in that metric


CloudWatch Events allows you to trigger a number of events based on a specific schedule (think cronjob) or based on some event that happened in your AWS account. For example, if you want to trigger an SNS notification every time a user logs into the AWS Console.

CloudWatch Alarms collects standard metrics from your instances, S3 buckets, almost all the AWS services. You can add a threshold that triggers an action. For example, if your S3 bucket object count is greater than 100 then trigger a Lambda function to process the objects.


CLOUDWATCH EVENTS: - Can self-trigger based on a schedule (Cron jobs)

CLOUDWATCH ALARMS:- Can't do self-trigger based on schedule


CLOUDWATCH EVENTS: - Can be added to CloudWatch dashboards

CLOUDWATCH ALARMS:- Can't add to CloudWatch dashboards


Some other key points:

  • Events are processed by targets, with many more options than the actions an alarm can trigger.
  • Alarms invoke actions only for sustained changes.

Learn more this through Video on -YouTube