Module Overview

• Monitoring and maintaining healthy workloads
• Monitoring AWS infrastructure
• Monitoring applications
• Lab 4: Monitor Applications and Infrastructure

Amazon CloudWatch Key Concepts

Metric Retention Periods

Using CloudWatch Alarms

• Identify the metric · define conditions · configure notification · define actions
• ALARM is not necessarily an emergency — depends on the threshold configured
• New: create alarms directly from log queries (Log-Based Alarms)

CloudWatch Logs Insights

• Run interactive queries against your log data
• Analyze and visualize results
• 23 new query commands and functions added recently

AWS X-Ray

• Complete view of requests as they travel through your application
• Analyze/debug performance, view latency, pinpoint bottlenecks
• Works with AWS and third-party services
• Note: SDK/Daemon entered maintenance mode Feb 2026 — migrate to OpenTelemetry

AWS Health Dashboard

• Personalized view of AWS service health affecting your resources
• Event log, event types, and event details
• Health event notifications

Troubleshooting Scenario

Lab 4: Monitor Applications and Infrastructure

• CloudWatch, X-Ray, and Health Dashboard in practice
• Duration: 55 minutes

Module Summary

Next: Module 10 — Data Security and System Auditing