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CloudTrail vs CloudWatch vs X-RayΒΆ

  • CloudTrail
    • Audit API calls made by users / services / AWS console
    • Useful to detect unauthorized calls or root cause of changes
  • CloudWatch
    • CloudWatch Metrics over time for monitoring
    • CloudWatch Logs for storing application logs
    • CloudWatch Alarms to send notifications in case of unexpected metrics
  • X-Ray
    • Automated Trace Analysis & Central Service Map Visualization
    • Latency, Errors and Fault analysis
    • Request tracking across distributed systems