Aws cloud watch
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CloudWatch is a real-time monitoring service for AWS components and applications, allowing users to collect and track metrics, and set alarms for notifications or automatic actions based on predefined rules. It monitors various AWS services, providing both basic (5-minute intervals) and detailed (1-minute intervals) metrics. Users can configure alarms to handle missing data points and perform actions based on specific thresholds.
Aws cloud watch
- 2. Mahesh TR What is CloudWatch? Real time monitoring of AWS components and the applications you run on AWS in real-time You can use CloudWatch to collect and track metrics, which are the variables you want to measure for your resources and applications. CloudWatch alarms send notifications or automatically make changes to the resources you are monitoring based on rules that you define
- 3. Mahesh TR What It can monitor? • Amazon EBS • Amazon EC2 • Amazon RDS • Amazon SNS • Amazon SQS • Auto Scaling • Elastic Load Balancing • By default AWS provide 12 EC2 metrics free of cost with time interval of 5min.
- 4. Mahesh TR Metircs are specific to each aws services or resources • EC2 per Instance matrics CPU utilization Disk operations Network operations • S3 matrics Number of Objects Bucket Size Bytes • ELB Matrics Request count Healthy Instance Unhealthy Instance
- 5. Mahesh TR Detailed vs Basic level monitoring • Basic Data is automatically available in 5 minute period at no change • Detailed Data is available in 1 minute period
- 6. Mahesh TR EC2 Status Monitoring
- 7. Mahesh TR
- 8. Mahesh TR You can specify how alarms handle missing data points. Choose whether to treat missing data points as: •missing (The alarm looks back farther in time to find additional data points) •notBreaching (Treated as a data point that is within the threshold) •breaching (Treated as a data point that is breaching the threshold) •ignore (The current alarm state is maintained)
- 9. Mahesh TR Alarms • Watches a single metric over a specific time period • based on the value performs one or more actions. • of the metric to a given threshold over a number of time periods • Action • notification sent to an SNS topic or Auto Scaling policy • Invoke actions for sustained state changes only • Specify the period over which the comparison is made. • Specify how many consecutive periods the threshold must be breached before you are notified.
- 10. Mahesh TR Alarm State • OK • The metric is within the defined threshold • ALARM • The metric is outside of the defined threshold • INSUFFICIENT_DATA • the metric is not available, alarm started • not enough data is available for the metric to determine the alarm state
- 11. Mahesh TR Features in Alarms • Create up to 400 alarms per AWS account • Disable/enable • View an alarm's history • CloudWatch preserves alarm history for two weeks. • Each state transition is marked with a unique time stamp • The time stamp helps to confirm unique state changes