Enabling ALB Access Logs and Analyzing with Athena

Enable ALB access logging for debugging:

• Follow this guide: https://docs.aws.amazon.com/elasticloadbalancing/latest/application/enable-access-logging.html

Access logs storage:

• Logs are saved in S3
• Difficult to view directly

Log format:

• Not written to a single file
• New file with timestamp after a set interval

Solution: Set up Athena to query logs

• Follow this guide: https://docs.aws.amazon.com/athena/latest/ug/application-load-balancer-logs.html