Monitoring & Cost Optimization

Overview

This section guides you through monitoring the Lexi application and optimizing AWS costs:

1. CloudWatch - Monitor logs, metrics, alarms
2. Cost Optimization - Optimize costs for each service

Monitoring Content

Monitoring is divided into 2 main parts:

1. CloudWatch - Application monitoring

   • View logs from Lambda, API Gateway
   • Monitor metrics (invocations, errors, duration)
   • Create alarms
   • Create dashboards

2. Cost Optimization - Cost optimization

   • DynamoDB optimization
   • Lambda optimization
   • S3 optimization
   • Bedrock optimization
   • AWS Budgets
   • Cost Explorer

Checklist

After completing the Monitoring section, you should:

• Know how to view logs from Lambda and API Gateway
• Understand how to monitor metrics (invocations, errors, duration)
• Know how to create CloudWatch alarms
• Know how to create CloudWatch dashboards
• Understand how to optimize DynamoDB costs
• Understand how to optimize Lambda costs
• Understand how to optimize S3 costs
• Understand how to optimize Bedrock costs
• Know how to use AWS Budgets
• Know how to use Cost Explorer

📸 TODO: Add CloudWatch dashboard screenshot

📸 TODO: Add Cost Explorer screenshot

Next Steps

You’ve completed the Monitoring section! Continue to Clean-up & Resource Management to learn how to delete resources when no longer needed.