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AWS Cloudwatch vs Cloudtrail - Whats the Difference?
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AWS Cloudwatch vs Cloudtrail - Whats the Difference?

CloudWatch vs. CloudTrail

This video explains the difference between Amazon CloudWatch and Amazon CloudTrail, two AWS services with similar names but different functions.

Amazon CloudWatch

  • Amazon CloudWatch is an AWS monitoring service for applications.
  • It allows you to collect, monitor, and analyze your application's health.
  • The three main categories of features are collection, monitoring, and analysis.

Collection

  • Collecting application logs is a critical input that allows us to analyze what is going on in our application.
  • You can ingest large volumes of application logs and store them at a relatively cheap cost.
  • General AWS service logs are also relevant to certain AWS services.

Monitoring

  • Creating metric graphs allows you to visualize the counts of certain metrics over time.
  • Many different services in AWS emit their own default set of metrics; however, you can create your own metrics as well.
  • Alarms allow you to become notified whenever something out of the ordinary happens in your application.

Analysis

  • CloudWatch Log Insights allow you to perform SQL-style queries on your log information and do some interesting analysis on them from the data analytics perspective.

Conclusion

Amazon CloudWatch is an umbrella service that has many different functions related to collecting, monitoring, and analyzing data. It offers features that allow you to collect monitor and analyze your application's health. On the other hand, Amazon CloudTrail is a service that provides governance, compliance auditing, and risk auditing for your AWS account.

Overview of CloudWatch

This section provides an overview of CloudWatch, a monitoring service for AWS applications.

What is CloudWatch?

  • CloudWatch is a monitoring service for AWS applications.
  • It allows you to monitor and collect metrics, collect and monitor log files, and set alarms.
  • You can integrate application events into an event bus and respond to them programmatically.

Overview of CloudTrail

This section provides an overview of CloudTrail, an auditing service for AWS accounts.

What is CloudTrail?

  • CloudTrail is an auditing service for AWS accounts.
  • It allows you to analyze who performed what actions on your AWS resources.
  • You can use trails to view different events such as create table, update table, describe table etc.
  • Trails allow you to have an audit log of all the events related to your AWS applications.

Types of Events in CloudTrail

This section describes the three types of events in CloudTrail.

Types of Events

  • Management events are administrative type events like creation or modification of resources. These come enabled by default when you create your account.
  • Data events include queries on a DynamoDB table or invocations of a Lambda function. These do not come enabled by default but can be enabled on specific services if needed.
  • Insights allow you to leverage machine learning algorithms to detect unusual access or usage patterns in your applications.

Additional Features in CloudTrail

This section describes additional features available in CloudTrail.

Additional Features

  • Export tools allow you to archive data to cold storage like S3 or Glacier for compliance purposes.
  • Separate trails can be created for different types of events and can have different delivery destinations.
  • CloudTrail is meant for auditing access to your AWS accounts.

Introduction to CloudWatch

In this section, the speaker introduces CloudWatch and its features.

What is CloudWatch?

  • CloudWatch is a monitoring service provided by AWS.
  • It provides real-time monitoring of resources and applications running on AWS.
  • It can be used to collect and track metrics, collect and monitor log files, set alarms, and automatically react to changes in your AWS resources.

Features of CloudWatch

  • CloudWatch has several features including:
  • Monitoring of EC2 instances
  • Monitoring of other AWS resources such as RDS databases, Elastic Load Balancers, etc.
  • Custom metrics
  • Dashboards for visualizing data
  • Alarms for notifications when thresholds are breached
  • Integration with other AWS services

Metrics in CloudWatch

In this section, the speaker explains what metrics are in CloudWatch.

What are Metrics?

  • Metrics are time-series data points that represent the state of a resource or application at a particular point in time.
  • They can be collected from various sources such as EC2 instances or custom applications.
  • Metrics have dimensions which provide additional information about the metric such as instance ID or region.

Metric Data Points

  • Metric data points consist of a timestamp, value, and unit of measurement.
  • They are collected at regular intervals and stored in CloudWatch.
  • Data points can be retrieved and used to create graphs or set alarms.

Logs in CloudWatch

In this section, the speaker explains what logs are in CloudWatch.

What are Logs?

  • Logs are records of events that occur within a system or application.
  • They can be used for troubleshooting, auditing, and compliance purposes.
  • Logs can be collected from various sources such as EC2 instances or custom applications.

Log Groups and Streams

  • Logs are organized into log groups which contain log streams.
  • Log streams represent a sequence of log events that share the same source.
  • Each log stream has a unique name and is associated with a specific log group.

Conclusion

In this section, the speaker concludes the video by summarizing what was covered.

Summary

  • CloudWatch is a monitoring service provided by AWS that can be used to collect and track metrics, collect and monitor log files, set alarms, and automatically react to changes in your AWS resources.
  • Metrics are time-series data points that represent the state of a resource or application at a particular point in time while logs are records of events that occur within a system or application.
  • CloudWatch has several features including monitoring of EC2 instances and other AWS resources, custom metrics, dashboards for visualizing data, alarms for notifications when thresholds are breached, and integration with other AWS services.
Video description

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