Troubleshooting: Elastic Load Balancing, Digital

In this course, you will learn how to view configuration information, monitor processes, and gather diagnostic data about the different types of elastic load balancers. You will learn how to use this information to help troubleshoot common issues and provide effective support case details if you need to escalate an issue to Amazon Web Services (AWS) Support.

• Course level: Fundamental

• Duration: 30 minutes

Activities

This course includes presentations, troubleshooting scenarios, and resources for problem determination.

Course objectives

In this course, you will learn to:

• Distinguish among the different load balancer types: application, network, gateway, and classic

• Recognize symptoms of common load balancer issues such as HTTP errors and health check errors

• Employ best-practice troubleshooting methodologies to investigate load balancer issues

• Locate and apply available AWS Support documentation for load balancer issues

• Recognize and record relevant information to escalate load balancer issues to the AWS Support team

Intended audience

This course is intended for:

• SysOps administrators who manage Elastic Load Balancing (ELB) solutions

Prerequisites

We recommend that attendees of this course have:

• Basic knowledge of ELB concepts

• Experience managing specific types of load balancers 

Course outline

Lesson 1: What is Elastic Load Balancing?

Lesson 2: Gathering information about your load balancers

Lesson 3: Monitoring load balancers

Lesson 4: General problem determination

Lesson 5: Common HTTP errors

Lesson 6: Health check issues – Classic Load Balancer

Lesson 7: Health check issues – Application Load Balancer

Lesson 8: Client connectivity issues

Lesson 9: Troubleshooting the Network Load Balancer

Lesson 10: Troubleshooting the Gateway Load Balancer

Lesson 11: Getting help